High level conclusions

Fuzzers reach 97.47% code coverage.

Fuzzer chrono-timepoint-fuzzer is blocked:

The runtime code coverage of chrono-timepoint-fuzzer covers 27.92% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzers reach 14.11% of cyclomatic complexity.

Fuzzers reach 16.83% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

2133 / 12672

Cyclomatic complexity statically reachable by fuzzers

9301 / 65883

Runtime code coverage of functions

12352 / 12672

Warning: The number of runtime covered functions are larger than the number of reachable functions. This means that Fuzz Introspector found there are more functions covered at runtime than what is considered reachable based on the static analysis. This is a limitation in the analysis as anything covered at runtime is by definition reachable by the fuzzers.
This is likely due to a limitation in the static analysis. In this case, the count of functions covered at runtime is the true value, which means this is what should be considered "achieved" by the fuzzer.

Use the project functions table below to query all functions that were not covered at runtime.

The following table shows data about each function in the project. The functions included in this table correspond to all functions that exist in the executables of the fuzzers. As such, there may be functions that are from third-party libraries.

For further technical details on the meaning of columns in the below table, please see the Glossary .

Func name	Functions filename	Args	Function call depth	Reached by Fuzzers	Runtime reached by Fuzzers	Combined reached by Fuzzers	Fuzzers runtime hit	Func lines hit %	I Count	BB Count	Cyclomatic complexity	Functions reached	Reached by functions	Accumulated cyclomatic complexity	Undiscovered complexity

Fuzzer: float-fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	963	60.6%
gold	[1:9]	1	0.06%
yellow	[10:29]	1	0.06%
greenyellow	[30:49]	5	0.31%
lawngreen	50+	618	38.9%
All colors	1588	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
155	1404	_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEEdTnNSt3__19enable_ifIXsr17is_floating_pointIT1_EE5valueEiE4typeELi0EEET0_SA_S7_NS0_12format_specsENS0_10locale_refE	call site: 01404	_ZN3fmt3v126detail13arg_formatterIcEclIeTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
69	142	fmt::v12::format_specs::format_specs()	call site: 00142	_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEEbTnNSt3__19enable_ifIXsr3std7is_sameIT1_bEE5valueEiE4typeELi0EEET0_SA_S7_RKNS0_12format_specsENS0_10locale_refE
61	567	_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEEdTnNSt3__19enable_ifIXsr13is_fast_floatIT1_EE5valueEiE4typeELi0EEET0_SA_S7_	call site: 00567	_ZN3fmt3v126detail21default_arg_formatterIcEclIeTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
39	1166	fmt::v12::detail::format_handler ::on_format_specs(int, char const*, char const*)	call site: 01166	_ZN3fmt3v126detail19dynamic_spec_getterclIbTnNSt3__19enable_ifIXntsr10is_integerIT_EE5valueEiE4typeELi0EEEyS6_
35	1258	fmt::v12::basic_appender fmt::v12::detail::write_padded , fmt::v12::detail::write_int , unsigned __int128>(fmt::v12::basic_appender , fmt::v12::detail::write_int_arg , fmt::v12::format_specs const&)::{lambda(fmt::v12::basic_appender )#1}&>(fmt::v12::basic_appender , fmt::v12::format_specs const&, unsigned long, unsigned long, fmt::v12::detail::write_int , unsigned __int128>(fmt::v12::basic_appender , fmt::v12::detail::write_int_arg , fmt::v12::format_specs const&)::{lambda(fmt::v12::basic_appender )#1}&)	call site: 01258	_ZN3fmt3v126detail13arg_formatterIcEclIfTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
31	110	_ZN3fmt3v126detail14format_decimalIcmNS0_14basic_appenderIcEETnNSt3__19enable_ifIXntsr3std10is_pointerINS5_9remove_cvINS5_16remove_referenceIT1_E4typeEE4typeEEE5valueEiE4typeELi0EEES9_S9_T0_i	call site: 00110	_ZN3fmt3v126detail21default_arg_formatterIcEclIbTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
27	983	fmt::v12::basic_appender fmt::v12::detail::write_padded , fmt::v12::detail::write_ptr , unsigned long>(fmt::v12::basic_appender , unsigned long, fmt::v12::format_specs const*)::{lambda(fmt::v12::basic_appender )#1}&>(fmt::v12::basic_appender , fmt::v12::format_specs const&, unsigned long, unsigned long, fmt::v12::detail::write_ptr , unsigned long>(fmt::v12::basic_appender , unsigned long, fmt::v12::format_specs const*)::{lambda(fmt::v12::basic_appender )#1}&)	call site: 00983	_ZN3fmt3v126detail13format_base2eIcNS0_14basic_appenderIcEEmTnNSt3__19enable_ifIXsr23is_back_insert_iteratorIT0_EE5valueEiE4typeELi0EEES7_iS7_T1_ib
24	1208	fmt::v12::detail::format_handler ::on_format_specs(int, char const*, char const*)	call site: 01208	_ZN3fmt3v126detail13arg_formatterIcEclIiTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
24	1346	int fmt::v12::detail::format_float (double, int, fmt::v12::format_specs const&, bool, fmt::v12::detail::buffer &)	call site: 01346
23	327	fmt::v12::detail::dragonbox::floor_log10_pow2(int)	call site: 00327	__clang_call_terminate
22	1142	char const* fmt::v12::detail::parse_format_specs (char const*, char const*, fmt::v12::detail::dynamic_format_specs &, fmt::v12::parse_context &, fmt::v12::detail::type)	call site: 01142	_ZN3fmt3v126detail8to_asciiIcTnNSt3__19enable_ifIXsr3std11is_integralIT_EE5valueEiE4typeELi0EEEcS5_
22	1234	fmt::v12::basic_appender fmt::v12::detail::write_padded , fmt::v12::detail::write_int , unsigned long>(fmt::v12::basic_appender , fmt::v12::detail::write_int_arg , fmt::v12::format_specs const&)::{lambda(fmt::v12::basic_appender )#1}&>(fmt::v12::basic_appender , fmt::v12::format_specs const&, unsigned long, unsigned long, fmt::v12::detail::write_int , unsigned long>(fmt::v12::basic_appender , fmt::v12::detail::write_int_arg , fmt::v12::format_specs const&)::{lambda(fmt::v12::basic_appender )#1}&)	call site: 01234	_ZN3fmt3v126detail13arg_formatterIcEclInTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_

Runtime coverage analysis

Covered functions

260

Functions that are reachable but not covered

621

Reachable functions

1227

Percentage of reachable functions covered

49.39%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/fmt/test/fuzzing/float.cc	2
/src/fmt/include/fmt/core.h	187
/src/fmt/test/fuzzing/fuzzer-common.h	1
/src/fmt/include/fmt/format.h	442
/src/fmt/include/fmt/format-inl.h	44

Fuzzer: chrono-timepoint-fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1313	83.6%
gold	[1:9]	11	0.70%
yellow	[10:29]	3	0.19%
greenyellow	[30:49]	18	1.14%
lawngreen	50+	225	14.3%
All colors	1570	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
293	383	fmt::v12::basic_memory_buffer >::~basic_memory_buffer()	call site: 00383	_ZN3fmt3v126detail21default_arg_formatterIcEclIeTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
211	695	fmt::v12::basic_memory_buffer >::deallocate()	call site: 00695	_ZN3fmt3v1219basic_memory_bufferIjLm32ENS0_6detail9allocatorIjEEE10move_allocIS4_TnNSt3__19enable_ifIXntsr3std16allocator_traitsIT_E38propagate_on_container_move_assignmentE5valueEiE4typeELi0EEEbRS5_
208	1209	fmt::v12::detail::format_handler ::on_format_specs(int, char const*, char const*)	call site: 01209	_ZN3fmt3v126detail13arg_formatterIcEclIdTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
121	257	fmt::v12::basic_string_view ::basic_string_view(char const*)	call site: 00257	_ZN3fmt3v126detail21default_arg_formatterIcEclIfTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
56	1421	_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsE	call site: 01421	_ZN3fmt3v126detail4copyIcPKcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXaacvNS1_23is_back_insert_iteratorIT1_NS7_17integral_constantIbLb1EEEEE_EcvNS1_10has_appendISA_T0_vEE_EEiE4typeELi0EEESA_SF_SF_SA_
40	1119	char const* fmt::v12::detail::parse_width (char const*, char const*, fmt::v12::format_specs&, fmt::v12::detail::arg_ref &, fmt::v12::parse_context &)	call site: 01119	_ZN3fmt3v126detail8to_asciiIcTnNSt3__19enable_ifIXsr3std11is_integralIT_EE5valueEiE4typeELi0EEEcS5_
40	1507	_ZZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsEENKUlS4_E_clES4_	call site: 01507	_ZN3fmt3v126detail16write_escaped_cpIZNS1_5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SB_NS0_17basic_string_viewIS8_EERKNS0_12format_specsEE23bounded_output_iteratorcEES8_S8_RKNS1_18find_escape_resultISB_EE
39	141	fmt::v12::format_specs::format_specs()	call site: 00141	_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEEbTnNSt3__19enable_ifIXsr3std7is_sameIT1_bEE5valueEiE4typeELi0EEET0_SA_S7_RKNS0_12format_specsENS0_10locale_refE
33	930	fmt::v12::basic_appender fmt::v12::detail::copy_noinline >(char const*, char const*, fmt::v12::basic_appender )	call site: 00930	_ZN3fmt3v126detail21default_arg_formatterIcEclIPKcTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS9_
31	109	_ZN3fmt3v126detail14format_decimalIcmNS0_14basic_appenderIcEETnNSt3__19enable_ifIXntsr3std10is_pointerINS5_9remove_cvINS5_16remove_referenceIT1_E4typeEE4typeEEE5valueEiE4typeELi0EEES9_S9_T0_i	call site: 00109	_ZN3fmt3v126detail21default_arg_formatterIcEclIbTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
31	968	fmt::v12::basic_appender fmt::v12::detail::write >(fmt::v12::basic_appender , fmt::v12::basic_string_view )	call site: 00968	_ZN3fmt3v126detail21default_arg_formatterIcEclIPKvTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS9_
29	227	fmt::v12::basic_appender fmt::v12::detail::fill >(fmt::v12::basic_appender , unsigned long, fmt::v12::basic_specs const&)	call site: 00227	_ZN3fmt3v126detail4copyIcPcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXaacvNS1_23is_back_insert_iteratorIT1_NS6_17integral_constantIbLb1EEEEE_EcvNS1_10has_appendIS9_T0_vEE_EEiE4typeELi0EEES9_SE_SE_S9_

Runtime coverage analysis

Covered functions

295

Functions that are reachable but not covered

888

Reachable functions

1232

Percentage of reachable functions covered

27.92%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/fmt/test/fuzzing/chrono-timepoint.cc	2
/src/fmt/test/fuzzing/fuzzer-common.h	4
/src/fmt/include/fmt/core.h	183
/src/fmt/include/fmt/format.h	444
/src/fmt/include/fmt/format-inl.h	45

Fuzzer: one-arg-fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	267	16.3%
gold	[1:9]	38	2.31%
yellow	[10:29]	4	0.24%
greenyellow	[30:49]	6	0.36%
lawngreen	50+	1323	80.7%
All colors	1638	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
40	1510	_ZZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsEENKUlS4_E_clES4_	call site: 01510	_ZN3fmt3v126detail16write_escaped_cpIZNS1_5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SB_NS0_17basic_string_viewIS8_EERKNS0_12format_specsEE23bounded_output_iteratorcEES8_S8_RKNS1_18find_escape_resultISB_EE
27	1424	_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsE	call site: 01424	_ZN3fmt3v126detail4copyIcPKcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXaacvNS1_23is_back_insert_iteratorIT1_NS7_17integral_constantIbLb1EEEEE_EcvNS1_10has_appendISA_T0_vEE_EEiE4typeELi0EEESA_SF_SF_SA_
15	1245	fmt::v12::detail::write_int_arg )())<=(32))&&(!(0)), unsigned int, std::__1::conditional<((num_bits )())<=(64), unsigned long, unsigned __int128>::type>::type> fmt::v12::detail::make_write_int_arg (unsigned long long, fmt::v12::sign)	call site: 01245	_ZN3fmt3v126detail13arg_formatterIcEclInTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
13	116	_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEEyTnNSt3__19enable_ifIXaaaasr11is_integralIT1_EE5valuentsr3std7is_sameIS7_bEE5valuentsr3std7is_sameIS7_T_EE5valueEiE4typeELi0EEET0_SB_S7_	call site: 00116	_ZN3fmt3v126detail21default_arg_formatterIcEclInTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
13	1489	_ZZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsEENKUljNSB_IcEEE_clEjSG_	call site: 01489
11	130	char* fmt::v12::detail::fill_n (char*, int, char)	call site: 00130	_ZN3fmt3v126detail21default_arg_formatterIcEclIoTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
10	411	_ZN3fmt3v126detail17write_significandINS0_14basic_appenderIcEEjcTnNSt3__19enable_ifIXntsr3std10is_pointerINS5_9remove_cvINS5_16remove_referenceIT_E4typeEE4typeEEE5valueEiE4typeELi0EEES9_S9_T0_iiT1_	call site: 00411	_ZN3fmt3v126detail17write_significandINS0_14basic_appenderIcEEjcTnNSt3__19enable_ifIXntsr3std10is_pointerINS5_9remove_cvINS5_16remove_referenceIT_E4typeEE4typeEEE5valueEiE4typeELi0EEES9_S9_T0_iiT1_
10	971	fmt::v12::basic_appender fmt::v12::detail::write >(fmt::v12::basic_appender , fmt::v12::basic_string_view )	call site: 00971	_ZN3fmt3v126detail21default_arg_formatterIcEclIPKvTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS9_
10	1410	_ZN3fmt3v126detail13arg_formatterIcEclIeTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_	call site: 01410	_ZN3fmt3v126detail13arg_formatterIcEclIPKcTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS9_
9	371	fmt::v12::basic_appender fmt::v12::detail::write_significand , unsigned int, fmt::v12::detail::fallback_digit_grouping >(fmt::v12::basic_appender , unsigned int, int, int, fmt::v12::detail::fallback_digit_grouping const&)	call site: 00371
9	1464	fmt::v12::basic_appender fmt::v12::detail::write_escaped_cp , char>(fmt::v12::basic_appender , fmt::v12::detail::find_escape_result const&)	call site: 01464	_ZN3fmt3v126detail4copyIcPcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXaacvNS1_23is_back_insert_iteratorIT1_NS6_17integral_constantIbLb1EEEEE_EcvNS1_10has_appendIS9_T0_vEE_EEiE4typeELi0EEES9_SE_SE_S9_
8	1552	_ZZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsEENKUlS4_E_clES4_	call site: 01552	_ZN3fmt3v126detail13arg_formatterIcEclINS0_17basic_string_viewIcEETnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS9_

Runtime coverage analysis

Covered functions

802

Functions that are reachable but not covered

162

Reachable functions

1338

Percentage of reachable functions covered

87.89%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/fmt/test/fuzzing/one-arg.cc	29
/src/fmt/test/fuzzing/fuzzer-common.h	16
/src/fmt/include/fmt/format.h	442
/src/fmt/include/fmt/core.h	208
/src/fmt/include/fmt/format-inl.h	44

Fuzzer: named-arg-fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	303	17.8%
gold	[1:9]	33	1.93%
yellow	[10:29]	5	0.29%
greenyellow	[30:49]	6	0.35%
lawngreen	50+	1355	79.6%
All colors	1702	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
83	1491	fmt::v12::basic_appender fmt::v12::detail::write_escaped_cp , char>(fmt::v12::basic_appender , fmt::v12::detail::find_escape_result const&)	call site: 01491	_ZN3fmt3v126detail13arg_formatterIcEclINS0_17basic_string_viewIcEETnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS9_
41	1424	_ZN3fmt3v126detail13arg_formatterIcEclIeTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_	call site: 01424	_ZN3fmt3v126detail13arg_formatterIcEclIPKcTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS9_
17	983	fmt::v12::basic_appender fmt::v12::detail::do_write_float , fmt::v12::basic_appender , fmt::v12::detail::big_decimal_fp>(fmt::v12::basic_appender , fmt::v12::detail::big_decimal_fp const&, fmt::v12::format_specs const&, fmt::v12::sign, int, fmt::v12::locale_ref)	call site: 00983	_ZN3fmt3v126detail21default_arg_formatterIcEclIPKvTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS9_
15	1259	fmt::v12::detail::write_int_arg )())<=(32))&&(!(0)), unsigned int, std::__1::conditional<((num_bits )())<=(64), unsigned long, unsigned __int128>::type>::type> fmt::v12::detail::make_write_int_arg (unsigned long long, fmt::v12::sign)	call site: 01259	_ZN3fmt3v126detail13arg_formatterIcEclInTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
13	143	_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEEyTnNSt3__19enable_ifIXaaaasr11is_integralIT1_EE5valuentsr3std7is_sameIS7_bEE5valuentsr3std7is_sameIS7_T_EE5valueEiE4typeELi0EEET0_SB_S7_	call site: 00143	_ZN3fmt3v126detail21default_arg_formatterIcEclInTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
13	1016	char* fmt::v12::detail::format_base2e (int, char*, unsigned long, int, bool)	call site: 01016
11	157	char* fmt::v12::detail::fill_n (char*, int, char)	call site: 00157	_ZN3fmt3v126detail21default_arg_formatterIcEclIoTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
10	430	_ZN3fmt3v126detail17write_significandINS0_14basic_appenderIcEEjcTnNSt3__19enable_ifIXntsr3std10is_pointerINS5_9remove_cvINS5_16remove_referenceIT_E4typeEE4typeEEE5valueEiE4typeELi0EEES9_S9_T0_iiT1_	call site: 00430	_ZN3fmt3v126detail17write_significandINS0_14basic_appenderIcEEjcTnNSt3__19enable_ifIXntsr3std10is_pointerINS5_9remove_cvINS5_16remove_referenceIT_E4typeEE4typeEEE5valueEiE4typeELi0EEES9_S9_T0_iiT1_
9	390	fmt::v12::basic_appender fmt::v12::detail::write_significand , unsigned int, fmt::v12::detail::fallback_digit_grouping >(fmt::v12::basic_appender , unsigned int, int, int, fmt::v12::detail::fallback_digit_grouping const&)	call site: 00390
9	1478	fmt::v12::basic_appender fmt::v12::detail::write_escaped_cp , char>(fmt::v12::basic_appender , fmt::v12::detail::find_escape_result const&)	call site: 01478	_ZN3fmt3v126detail4copyIcPcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXaacvNS1_23is_back_insert_iteratorIT1_NS6_17integral_constantIbLb1EEEEE_EcvNS1_10has_appendIS9_T0_vEE_EEiE4typeELi0EEES9_SE_SE_S9_
7	915	fmt::v12::basic_memory_buffer >::basic_memory_buffer(fmt::v12::detail::allocator const&)	call site: 00915
7	1005	fmt::v12::basic_appender fmt::v12::detail::write_padded , fmt::v12::detail::write_ptr , unsigned long>(fmt::v12::basic_appender , unsigned long, fmt::v12::format_specs const*)::{lambda(fmt::v12::basic_appender )#1}&>(fmt::v12::basic_appender , fmt::v12::format_specs const&, unsigned long, unsigned long, fmt::v12::detail::write_ptr , unsigned long>(fmt::v12::basic_appender , unsigned long, fmt::v12::format_specs const*)::{lambda(fmt::v12::basic_appender )#1}&)	call site: 01005	_ZN3fmt3v126detail13format_base2eIcNS0_14basic_appenderIcEEmTnNSt3__19enable_ifIXsr23is_back_insert_iteratorIT0_EE5valueEiE4typeELi0EEES7_iS7_T1_ib

Runtime coverage analysis

Covered functions

732

Functions that are reachable but not covered

189

Reachable functions

1432

Percentage of reachable functions covered

86.8%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/fmt/test/fuzzing/named-arg.cc	28
/src/fmt/test/fuzzing/fuzzer-common.h	17
/src/fmt/include/fmt/format.h	442
/src/fmt/include/fmt/core.h	267
/src/fmt/include/fmt/format-inl.h	44

Fuzzer: two-args-fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	296	13.3%
gold	[1:9]	30	1.34%
yellow	[10:29]	205	9.22%
greenyellow	[30:49]	214	9.62%
lawngreen	50+	1478	66.4%
All colors	2223	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
77	1479	fmt::v12::basic_appender fmt::v12::detail::write_escaped_cp , char>(fmt::v12::basic_appender , fmt::v12::detail::find_escape_result const&)	call site: 01479	_ZN3fmt3v126detail13arg_formatterIcEclINS0_17basic_string_viewIcEETnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS9_
41	1412	_ZN3fmt3v126detail13arg_formatterIcEclIeTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_	call site: 01412	_ZN3fmt3v126detail13arg_formatterIcEclIPKcTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS9_
15	1247	fmt::v12::detail::write_int_arg )())<=(32))&&(!(0)), unsigned int, std::__1::conditional<((num_bits )())<=(64), unsigned long, unsigned __int128>::type>::type> fmt::v12::detail::make_write_int_arg (unsigned long long, fmt::v12::sign)	call site: 01247	_ZN3fmt3v126detail13arg_formatterIcEclInTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
13	119	_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEEyTnNSt3__19enable_ifIXaaaasr11is_integralIT1_EE5valuentsr3std7is_sameIS7_bEE5valuentsr3std7is_sameIS7_T_EE5valueEiE4typeELi0EEET0_SB_S7_	call site: 00119	_ZN3fmt3v126detail21default_arg_formatterIcEclInTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
12	967	fmt::v12::basic_appender fmt::v12::detail::do_write_float , fmt::v12::basic_appender , fmt::v12::detail::big_decimal_fp>(fmt::v12::basic_appender , fmt::v12::detail::big_decimal_fp const&, fmt::v12::format_specs const&, fmt::v12::sign, int, fmt::v12::locale_ref)	call site: 00967	_ZN3fmt3v126detail21default_arg_formatterIcEclIPKcTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS9_
11	133	char* fmt::v12::detail::fill_n (char*, int, char)	call site: 00133	_ZN3fmt3v126detail21default_arg_formatterIcEclIoTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
10	414	_ZN3fmt3v126detail17write_significandINS0_14basic_appenderIcEEjcTnNSt3__19enable_ifIXntsr3std10is_pointerINS5_9remove_cvINS5_16remove_referenceIT_E4typeEE4typeEEE5valueEiE4typeELi0EEES9_S9_T0_iiT1_	call site: 00414	_ZN3fmt3v126detail17write_significandINS0_14basic_appenderIcEEjcTnNSt3__19enable_ifIXntsr3std10is_pointerINS5_9remove_cvINS5_16remove_referenceIT_E4typeEE4typeEEE5valueEiE4typeELi0EEES9_S9_T0_iiT1_
9	374	fmt::v12::basic_appender fmt::v12::detail::write_significand , unsigned int, fmt::v12::detail::fallback_digit_grouping >(fmt::v12::basic_appender , unsigned int, int, int, fmt::v12::detail::fallback_digit_grouping const&)	call site: 00374
9	447	_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEEfTnNSt3__19enable_ifIXsr13is_fast_floatIT1_EE5valueEiE4typeELi0EEET0_SA_S7_	call site: 00447	_ZN3fmt3v126detail17write_significandINS0_14basic_appenderIcEEjcTnNSt3__19enable_ifIXntsr3std10is_pointerINS5_9remove_cvINS5_16remove_referenceIT_E4typeEE4typeEEE5valueEiE4typeELi0EEES9_S9_T0_iiT1_
9	1466	fmt::v12::basic_appender fmt::v12::detail::write_escaped_cp , char>(fmt::v12::basic_appender , fmt::v12::detail::find_escape_result const&)	call site: 01466	_ZN3fmt3v126detail4copyIcPcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXaacvNS1_23is_back_insert_iteratorIT1_NS6_17integral_constantIbLb1EEEEE_EcvNS1_10has_appendIS9_T0_vEE_EEiE4typeELi0EEES9_SE_SE_S9_
8	1005	fmt::v12::basic_appender fmt::v12::detail::write_ptr , unsigned long>(fmt::v12::basic_appender , unsigned long, fmt::v12::format_specs const*)	call site: 01005
7	899	fmt::v12::basic_memory_buffer >::basic_memory_buffer(fmt::v12::detail::allocator const&)	call site: 00899

Runtime coverage analysis

Covered functions

1513

Functions that are reachable but not covered

181

Reachable functions

2303

Percentage of reachable functions covered

92.14%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/fmt/test/fuzzing/two-args.cc	422
/src/fmt/test/fuzzing/fuzzer-common.h	15
/src/fmt/include/fmt/core.h	389
/src/fmt/include/fmt/format.h	442
/src/fmt/include/fmt/format-inl.h	44

Fuzzer: chrono-duration-fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	781	31.3%
gold	[1:9]	3	0.12%
yellow	[10:29]	6	0.24%
greenyellow	[30:49]	4	0.16%
lawngreen	50+	1696	68.1%
All colors	2490	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
56	1428	_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsE	call site: 01428	_ZN3fmt3v126detail4copyIcPKcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXaacvNS1_23is_back_insert_iteratorIT1_NS7_17integral_constantIbLb1EEEEE_EcvNS1_10has_appendISA_T0_vEE_EEiE4typeELi0EEESA_SF_SF_SA_
40	1514	_ZZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsEENKUlS4_E_clES4_	call site: 01514	_ZN3fmt3v126detail16write_escaped_cpIZNS1_5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SB_NS0_17basic_string_viewIS8_EERKNS0_12format_specsEE23bounded_output_iteratorcEES8_S8_RKNS1_18find_escape_resultISB_EE
39	146	fmt::v12::format_specs::format_specs()	call site: 00146	_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEEbTnNSt3__19enable_ifIXsr3std7is_sameIT1_bEE5valueEiE4typeELi0EEET0_SA_S7_RKNS0_12format_specsENS0_10locale_refE
28	494	fmt::v12::detail::dragonbox::cache_accessor ::get_cached_power(int)	call site: 00494
25	610	_ZN3fmt3v126detail8basic_fpIoE6assignIeTnNSt3__19enable_ifIXntsr16is_double_doubleIT_EE5valueEiE4typeELi0EEEbS7_	call site: 00610	_ZN3fmt3v126detail14format_decimalIcjNS0_14basic_appenderIcEETnNSt3__19enable_ifIXntsr3std10is_pointerINS5_9remove_cvINS5_16remove_referenceIT1_E4typeEE4typeEEE5valueEiE4typeELi0EEES9_S9_T0_i
24	529	fmt::v12::detail::dragonbox::umul192_upper128(unsigned long, fmt::v12::detail::uint128)	call site: 00529	__clang_call_terminate
24	1216	fmt::v12::detail::format_handler ::on_format_specs(int, char const*, char const*)	call site: 01216	_ZN3fmt3v126detail13arg_formatterIcEclIiTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
24	1266	fmt::v12::basic_appender fmt::v12::detail::write_padded , fmt::v12::detail::write_int , unsigned __int128>(fmt::v12::basic_appender , fmt::v12::detail::write_int_arg , fmt::v12::format_specs const&)::{lambda(fmt::v12::basic_appender )#1}&>(fmt::v12::basic_appender , fmt::v12::format_specs const&, unsigned long, unsigned long, fmt::v12::detail::write_int , unsigned __int128>(fmt::v12::basic_appender , fmt::v12::detail::write_int_arg , fmt::v12::format_specs const&)::{lambda(fmt::v12::basic_appender )#1}&)	call site: 01266	_ZN3fmt3v126detail13arg_formatterIcEclIbTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
23	192	fmt::v12::report_error(char const*)	call site: 00192	_ZN3fmt3v126detail4copyIcPcS3_TnNSt3__19enable_ifIXoontcvNS1_23is_back_insert_iteratorIT1_NS4_17integral_constantIbLb1EEEEE_EntoocvNS1_10has_appendIS7_T0_vEE_EcvNS1_10has_insertIS7_SC_vEE_EEiE4typeELi0EEES7_SC_SC_S7_
22	310	fmt::v12::detail::dragonbox::floor_log2_pow10(int)	call site: 00310	__cxa_begin_catch
22	1242	fmt::v12::basic_appender fmt::v12::detail::write_padded , fmt::v12::detail::write_int , unsigned long>(fmt::v12::basic_appender , fmt::v12::detail::write_int_arg , fmt::v12::format_specs const&)::{lambda(fmt::v12::basic_appender )#1}&>(fmt::v12::basic_appender , fmt::v12::format_specs const&, unsigned long, unsigned long, fmt::v12::detail::write_int , unsigned long>(fmt::v12::basic_appender , fmt::v12::detail::write_int_arg , fmt::v12::format_specs const&)::{lambda(fmt::v12::basic_appender )#1}&)	call site: 01242	_ZN3fmt3v126detail13arg_formatterIcEclInTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_
21	968	fmt::v12::basic_appender fmt::v12::detail::do_write_float , fmt::v12::basic_appender , fmt::v12::detail::big_decimal_fp>(fmt::v12::basic_appender , fmt::v12::detail::big_decimal_fp const&, fmt::v12::format_specs const&, fmt::v12::sign, int, fmt::v12::locale_ref)	call site: 00968	_ZN3fmt3v126detail21default_arg_formatterIcEclIPKvTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS9_

Runtime coverage analysis

Covered functions

6899

Functions that are reachable but not covered

489

Reachable functions

2532

Percentage of reachable functions covered

80.69%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/fmt/test/fuzzing/chrono-duration.cc	193
/src/fmt/test/fuzzing/fuzzer-common.h	13
/src/fmt/include/fmt/core.h	906
/src/fmt/include/fmt/format.h	442
/src/fmt/include/fmt/format-inl.h	44

Optimal target analysis

Remaining optimal interesting functions

The following table shows a list of functions that are optimal targets. Optimal targets are identified by finding the functions that in combination, yield a high code coverage.

Func name	Functions filename	Arg count	Args	Function depth	hitcount	instr count	bb count	cyclomatic complexity	Reachable functions	Incoming references	total cyclomatic complexity	Unreached complexity
voidfmt::v12::detail::value ::format_custom >>>(void*,fmt::v12::parse_context &,fmt::v12::context&)	/src/fmt/include/fmt/core.h	3	['N/A', 'N/A', 'N/A']	15	0	42	3	2	666	0	1424	832

Implementing fuzzers that target the above functions will improve reachability such that it becomes:

Functions statically reachable by fuzzers

2300 / 12672

Cyclomatic complexity statically reachable by fuzzers

10125 / 65883

All functions overview

If you implement fuzzers for these functions, the status of all functions in the project will be:

Func name	Functions filename	Args	Function call depth	Reached by Fuzzers	Runtime reached by Fuzzers	Combined reached by Fuzzers	Fuzzers runtime hit	Func lines hit %	I Count	BB Count	Cyclomatic complexity	Functions reached	Reached by functions	Accumulated cyclomatic complexity	Undiscovered complexity

This sections provides heuristics that can be used as input to a fuzz engine when running a given fuzz target. The current focus is on providing input that is usable by libFuzzer.

/src/fmt/test/fuzzing/float.cc

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEEdTnNSt3__19enable_ifIXsr17is_floating_pointIT1_EE5valueEiE4typeELi0EEET0_SA_S7_NS0_12format_specsENS0_10locale_refE', 'fmt::v12::format_specs::format_specs()', '_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEEdTnNSt3__19enable_ifIXsr13is_fast_floatIT1_EE5valueEiE4typeELi0EEET0_SA_S7_', 'fmt::v12::detail::format_handler::on_format_specs(int, char const*, char const*)', 'fmt::v12::basic_appender fmt::v12::detail::write_padded, fmt::v12::detail::write_int, unsigned __int128>(fmt::v12::basic_appender, fmt::v12::detail::write_int_arg, fmt::v12::format_specs const&)::{lambda(fmt::v12::basic_appender)#1}&>(fmt::v12::basic_appender, fmt::v12::format_specs const&, unsigned long, unsigned long, fmt::v12::detail::write_int, unsigned __int128>(fmt::v12::basic_appender, fmt::v12::detail::write_int_arg, fmt::v12::format_specs const&)::{lambda(fmt::v12::basic_appender)#1}&)', '_ZN3fmt3v126detail14format_decimalIcmNS0_14basic_appenderIcEETnNSt3__19enable_ifIXntsr3std10is_pointerINS5_9remove_cvINS5_16remove_referenceIT1_E4typeEE4typeEEE5valueEiE4typeELi0EEES9_S9_T0_i', 'fmt::v12::basic_appender fmt::v12::detail::write_padded, fmt::v12::detail::write_ptr, unsigned long>(fmt::v12::basic_appender, unsigned long, fmt::v12::format_specs const*)::{lambda(fmt::v12::basic_appender)#1}&>(fmt::v12::basic_appender, fmt::v12::format_specs const&, unsigned long, unsigned long, fmt::v12::detail::write_ptr, unsigned long>(fmt::v12::basic_appender, unsigned long, fmt::v12::format_specs const*)::{lambda(fmt::v12::basic_appender)#1}&)', 'fmt::v12::detail::format_handler::on_format_specs(int, char const*, char const*)', 'int fmt::v12::detail::format_float(double, int, fmt::v12::format_specs const&, bool, fmt::v12::detail::buffer&)', 'fmt::v12::detail::dragonbox::floor_log10_pow2(int)']

/src/fmt/test/fuzzing/chrono-timepoint.cc

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['fmt::v12::basic_memory_buffer >::~basic_memory_buffer()', 'fmt::v12::basic_memory_buffer >::deallocate()', 'fmt::v12::detail::format_handler::on_format_specs(int, char const*, char const*)', 'fmt::v12::basic_string_view::basic_string_view(char const*)', '_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsE', 'char const* fmt::v12::detail::parse_width(char const*, char const*, fmt::v12::format_specs&, fmt::v12::detail::arg_ref&, fmt::v12::parse_context&)', '_ZZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsEENKUlS4_E_clES4_', 'fmt::v12::format_specs::format_specs()', 'fmt::v12::basic_appender fmt::v12::detail::copy_noinline >(char const*, char const*, fmt::v12::basic_appender)', '_ZN3fmt3v126detail14format_decimalIcmNS0_14basic_appenderIcEETnNSt3__19enable_ifIXntsr3std10is_pointerINS5_9remove_cvINS5_16remove_referenceIT1_E4typeEE4typeEEE5valueEiE4typeELi0EEES9_S9_T0_i']

/src/fmt/test/fuzzing/one-arg.cc

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['_ZZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsEENKUlS4_E_clES4_', '_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsE', 'fmt::v12::detail::write_int_arg)())<=(32))&&(!(0)), unsigned int, std::__1::conditional<((num_bits)())<=(64), unsigned long, unsigned __int128>::type>::type> fmt::v12::detail::make_write_int_arg(unsigned long long, fmt::v12::sign)', '_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEEyTnNSt3__19enable_ifIXaaaasr11is_integralIT1_EE5valuentsr3std7is_sameIS7_bEE5valuentsr3std7is_sameIS7_T_EE5valueEiE4typeELi0EEET0_SB_S7_', '_ZZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsEENKUljNSB_IcEEE_clEjSG_', 'char* fmt::v12::detail::fill_n(char*, int, char)', '_ZN3fmt3v126detail17write_significandINS0_14basic_appenderIcEEjcTnNSt3__19enable_ifIXntsr3std10is_pointerINS5_9remove_cvINS5_16remove_referenceIT_E4typeEE4typeEEE5valueEiE4typeELi0EEES9_S9_T0_iiT1_', 'fmt::v12::basic_appender fmt::v12::detail::write >(fmt::v12::basic_appender, fmt::v12::basic_string_view)', '_ZN3fmt3v126detail13arg_formatterIcEclIeTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_', 'fmt::v12::basic_appender fmt::v12::detail::write_significand, unsigned int, fmt::v12::detail::fallback_digit_grouping >(fmt::v12::basic_appender, unsigned int, int, int, fmt::v12::detail::fallback_digit_grouping const&)']

/src/fmt/test/fuzzing/named-arg.cc

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['fmt::v12::basic_appender fmt::v12::detail::write_escaped_cp, char>(fmt::v12::basic_appender, fmt::v12::detail::find_escape_result const&)', '_ZN3fmt3v126detail13arg_formatterIcEclIeTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_', 'fmt::v12::basic_appender fmt::v12::detail::do_write_float, fmt::v12::basic_appender, fmt::v12::detail::big_decimal_fp>(fmt::v12::basic_appender, fmt::v12::detail::big_decimal_fp const&, fmt::v12::format_specs const&, fmt::v12::sign, int, fmt::v12::locale_ref)', 'fmt::v12::detail::write_int_arg)())<=(32))&&(!(0)), unsigned int, std::__1::conditional<((num_bits)())<=(64), unsigned long, unsigned __int128>::type>::type> fmt::v12::detail::make_write_int_arg(unsigned long long, fmt::v12::sign)', '_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEEyTnNSt3__19enable_ifIXaaaasr11is_integralIT1_EE5valuentsr3std7is_sameIS7_bEE5valuentsr3std7is_sameIS7_T_EE5valueEiE4typeELi0EEET0_SB_S7_', 'char* fmt::v12::detail::format_base2e(int, char*, unsigned long, int, bool)', 'char* fmt::v12::detail::fill_n(char*, int, char)', '_ZN3fmt3v126detail17write_significandINS0_14basic_appenderIcEEjcTnNSt3__19enable_ifIXntsr3std10is_pointerINS5_9remove_cvINS5_16remove_referenceIT_E4typeEE4typeEEE5valueEiE4typeELi0EEES9_S9_T0_iiT1_', 'fmt::v12::basic_appender fmt::v12::detail::write_significand, unsigned int, fmt::v12::detail::fallback_digit_grouping >(fmt::v12::basic_appender, unsigned int, int, int, fmt::v12::detail::fallback_digit_grouping const&)', 'fmt::v12::basic_appender fmt::v12::detail::write_escaped_cp, char>(fmt::v12::basic_appender, fmt::v12::detail::find_escape_result const&)']

/src/fmt/test/fuzzing/two-args.cc

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['fmt::v12::basic_appender fmt::v12::detail::write_escaped_cp, char>(fmt::v12::basic_appender, fmt::v12::detail::find_escape_result const&)', '_ZN3fmt3v126detail13arg_formatterIcEclIeTnNSt3__19enable_ifIXsr10is_builtinIT_EE5valueEiE4typeELi0EEEvS7_', 'fmt::v12::detail::write_int_arg)())<=(32))&&(!(0)), unsigned int, std::__1::conditional<((num_bits)())<=(64), unsigned long, unsigned __int128>::type>::type> fmt::v12::detail::make_write_int_arg(unsigned long long, fmt::v12::sign)', '_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEEyTnNSt3__19enable_ifIXaaaasr11is_integralIT1_EE5valuentsr3std7is_sameIS7_bEE5valuentsr3std7is_sameIS7_T_EE5valueEiE4typeELi0EEET0_SB_S7_', 'fmt::v12::basic_appender fmt::v12::detail::do_write_float, fmt::v12::basic_appender, fmt::v12::detail::big_decimal_fp>(fmt::v12::basic_appender, fmt::v12::detail::big_decimal_fp const&, fmt::v12::format_specs const&, fmt::v12::sign, int, fmt::v12::locale_ref)', 'char* fmt::v12::detail::fill_n(char*, int, char)', '_ZN3fmt3v126detail17write_significandINS0_14basic_appenderIcEEjcTnNSt3__19enable_ifIXntsr3std10is_pointerINS5_9remove_cvINS5_16remove_referenceIT_E4typeEE4typeEEE5valueEiE4typeELi0EEES9_S9_T0_iiT1_', 'fmt::v12::basic_appender fmt::v12::detail::write_significand, unsigned int, fmt::v12::detail::fallback_digit_grouping >(fmt::v12::basic_appender, unsigned int, int, int, fmt::v12::detail::fallback_digit_grouping const&)', '_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEEfTnNSt3__19enable_ifIXsr13is_fast_floatIT1_EE5valueEiE4typeELi0EEET0_SA_S7_', 'fmt::v12::basic_appender fmt::v12::detail::write_escaped_cp, char>(fmt::v12::basic_appender, fmt::v12::detail::find_escape_result const&)']

/src/fmt/test/fuzzing/chrono-duration.cc

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['_ZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsE', '_ZZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsEENKUlS4_E_clES4_', 'fmt::v12::format_specs::format_specs()', 'fmt::v12::detail::dragonbox::cache_accessor::get_cached_power(int)', '_ZN3fmt3v126detail8basic_fpIoE6assignIeTnNSt3__19enable_ifIXntsr16is_double_doubleIT_EE5valueEiE4typeELi0EEEbS7_', 'fmt::v12::detail::dragonbox::umul192_upper128(unsigned long, fmt::v12::detail::uint128)', 'fmt::v12::detail::format_handler::on_format_specs(int, char const*, char const*)', 'fmt::v12::basic_appender fmt::v12::detail::write_padded, fmt::v12::detail::write_int, unsigned __int128>(fmt::v12::basic_appender, fmt::v12::detail::write_int_arg, fmt::v12::format_specs const&)::{lambda(fmt::v12::basic_appender)#1}&>(fmt::v12::basic_appender, fmt::v12::format_specs const&, unsigned long, unsigned long, fmt::v12::detail::write_int, unsigned __int128>(fmt::v12::basic_appender, fmt::v12::detail::write_int_arg, fmt::v12::format_specs const&)::{lambda(fmt::v12::basic_appender)#1}&)', 'fmt::v12::report_error(char const*)', 'fmt::v12::detail::dragonbox::floor_log2_pow10(int)']

This section shows analysis of runtime coverage data.

For futher technical details on how this section is generated, please see the Glossary .

Complex functions with low coverage

Func name	Function total lines	Lines covered at runtime	percentage covered	Reached by fuzzers
char*fmt::v12::detail::do_format_decimal (char*,unsignedlong,int)	42	22	52.38%	['named-arg-fuzzer', 'chrono-duration-fuzzer', 'chrono-timepoint-fuzzer', 'one-arg-fuzzer', 'float-fuzzer', 'two-args-fuzzer']
_ZZN3fmt3v126detail5writeIcNS0_14basic_appenderIcEETnNSt3__19enable_ifIXsr3std7is_sameIT_cEE5valueEiE4typeELi0EEET0_SA_NS0_17basic_string_viewIS7_EERKNS0_12format_specsEENKUljNSB_IcEEE_clEjSG_	32	10	31.25%	['named-arg-fuzzer', 'chrono-duration-fuzzer', 'chrono-timepoint-fuzzer', 'one-arg-fuzzer', 'float-fuzzer', 'two-args-fuzzer']
char*fmt::v12::detail::do_format_decimal (char*,unsignedint,int)	42	23	54.76%	['named-arg-fuzzer', 'chrono-duration-fuzzer', 'chrono-timepoint-fuzzer', 'one-arg-fuzzer', 'float-fuzzer', 'two-args-fuzzer']
intfmt::v12::detail::format_float (longdouble,int,fmt::v12::format_specsconst&,bool,fmt::v12::detail::buffer &)	197	45	22.84%	['named-arg-fuzzer', 'chrono-duration-fuzzer', 'chrono-timepoint-fuzzer', 'one-arg-fuzzer', 'float-fuzzer', 'two-args-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']
charconst*fmt::v12::detail::parse_chrono_format >&>(charconst*,charconst*,fmt::v12::detail::duration_formatter >&)	135	66	48.88%	['chrono-duration-fuzzer']

This section shows which files and directories are considered in this report. The main reason for showing this is fuzz introspector may include more code in the reasoning than is desired. This section helps identify if too many files/directories are included, e.g. third party code, which may be irrelevant for the threat model. In the event too much is included, fuzz introspector supports a configuration file that can exclude data from the report. See the following link for more information on how to create a config file: link

Files in report

Source file	Reached by	Covered by
	[]	[]
/src/fmt/test/fuzzing/chrono-duration.cc	['chrono-duration-fuzzer']	['chrono-duration-fuzzer']
/usr/local/bin/../include/c++/v1/stdexcept	[]	[]
/src/fmt/include/fmt/chrono.h	[]	[]
/src/fmt/include/fmt/format-inl.h	['float-fuzzer', 'chrono-timepoint-fuzzer', 'one-arg-fuzzer', 'named-arg-fuzzer', 'two-args-fuzzer', 'chrono-duration-fuzzer']	['float-fuzzer', 'chrono-timepoint-fuzzer', 'one-arg-fuzzer', 'named-arg-fuzzer', 'two-args-fuzzer', 'chrono-duration-fuzzer']
/src/fmt/include/fmt/format.h	['float-fuzzer', 'chrono-timepoint-fuzzer', 'one-arg-fuzzer', 'named-arg-fuzzer', 'two-args-fuzzer', 'chrono-duration-fuzzer']	['float-fuzzer', 'chrono-timepoint-fuzzer', 'one-arg-fuzzer', 'named-arg-fuzzer', 'two-args-fuzzer', 'chrono-duration-fuzzer']
/src/fmt/test/fuzzing/float.cc	['float-fuzzer']	['float-fuzzer']
/src/fmt/test/fuzzing/fuzzer-common.h	['float-fuzzer', 'chrono-timepoint-fuzzer', 'one-arg-fuzzer', 'named-arg-fuzzer', 'two-args-fuzzer', 'chrono-duration-fuzzer']	['float-fuzzer', 'chrono-timepoint-fuzzer', 'one-arg-fuzzer', 'named-arg-fuzzer', 'two-args-fuzzer', 'chrono-duration-fuzzer']
/src/fmt/test/fuzzing/one-arg.cc	['one-arg-fuzzer']	['one-arg-fuzzer']
/usr/local/bin/../include/c++/v1/string	[]	[]
/src/fmt/test/fuzzing/chrono-timepoint.cc	['chrono-timepoint-fuzzer']	['chrono-timepoint-fuzzer']
/src/fmt/test/fuzzing/named-arg.cc	['named-arg-fuzzer']	['named-arg-fuzzer']
/src/fmt/test/fuzzing/two-args.cc	['two-args-fuzzer']	['two-args-fuzzer']
/src/fmt/include/fmt/core.h	['float-fuzzer', 'chrono-timepoint-fuzzer', 'one-arg-fuzzer', 'named-arg-fuzzer', 'two-args-fuzzer', 'chrono-duration-fuzzer']	['float-fuzzer', 'chrono-timepoint-fuzzer', 'one-arg-fuzzer', 'named-arg-fuzzer', 'two-args-fuzzer', 'chrono-duration-fuzzer']

Directories in report

Directory
/src/fmt/include/fmt/
/src/fmt/test/fuzzing/
/usr/local/bin/../include/c++/v1/