/src/double-conversion/double-conversion/strtod.h
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1 | | // Copyright 2010 the V8 project authors. All rights reserved. |
2 | | // Redistribution and use in source and binary forms, with or without |
3 | | // modification, are permitted provided that the following conditions are |
4 | | // met: |
5 | | // |
6 | | // * Redistributions of source code must retain the above copyright |
7 | | // notice, this list of conditions and the following disclaimer. |
8 | | // * Redistributions in binary form must reproduce the above |
9 | | // copyright notice, this list of conditions and the following |
10 | | // disclaimer in the documentation and/or other materials provided |
11 | | // with the distribution. |
12 | | // * Neither the name of Google Inc. nor the names of its |
13 | | // contributors may be used to endorse or promote products derived |
14 | | // from this software without specific prior written permission. |
15 | | // |
16 | | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 | | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 | | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 | | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 | | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 | | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 | | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 | | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | | |
28 | | #ifndef DOUBLE_CONVERSION_STRTOD_H_ |
29 | | #define DOUBLE_CONVERSION_STRTOD_H_ |
30 | | |
31 | | #include "utils.h" |
32 | | |
33 | | namespace double_conversion { |
34 | | |
35 | | // The buffer must only contain digits in the range [0-9]. It must not |
36 | | // contain a dot or a sign. It must not start with '0', and must not be empty. |
37 | | double Strtod(Vector<const char> buffer, int exponent); |
38 | | |
39 | | // The buffer must only contain digits in the range [0-9]. It must not |
40 | | // contain a dot or a sign. It must not start with '0', and must not be empty. |
41 | | float Strtof(Vector<const char> buffer, int exponent); |
42 | | |
43 | | // Same as Strtod, but assumes that 'trimmed' is already trimmed, as if run |
44 | | // through TrimAndCut. That is, 'trimmed' must have no leading or trailing |
45 | | // zeros, must not be a lone zero, and must not have 'too many' digits. |
46 | | double StrtodTrimmed(Vector<const char> trimmed, int exponent); |
47 | | |
48 | | // Same as Strtof, but assumes that 'trimmed' is already trimmed, as if run |
49 | | // through TrimAndCut. That is, 'trimmed' must have no leading or trailing |
50 | | // zeros, must not be a lone zero, and must not have 'too many' digits. |
51 | | float StrtofTrimmed(Vector<const char> trimmed, int exponent); |
52 | | |
53 | 1.83k | inline Vector<const char> TrimTrailingZeros(Vector<const char> buffer) { |
54 | 5.84k | for (int i = buffer.length() - 1; i >= 0; --i) { |
55 | 5.78k | if (buffer[i] != '0') { |
56 | 1.77k | return buffer.SubVector(0, i + 1); |
57 | 1.77k | } |
58 | 5.78k | } |
59 | 62 | return Vector<const char>(buffer.start(), 0); |
60 | 1.83k | } |
61 | | |
62 | | } // namespace double_conversion |
63 | | |
64 | | #endif // DOUBLE_CONVERSION_STRTOD_H_ |