/src/mozilla-central/nsprpub/lib/libc/src/strlen.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
2 | | /* This Source Code Form is subject to the terms of the Mozilla Public |
3 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
4 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
5 | | |
6 | | #include "plstr.h" |
7 | | #include "prtypes.h" |
8 | | #include "prlog.h" |
9 | | #include <string.h> |
10 | | |
11 | | PR_IMPLEMENT(PRUint32) |
12 | | PL_strlen(const char *str) |
13 | 0 | { |
14 | 0 | size_t l; |
15 | 0 |
|
16 | 0 | if( (const char *)0 == str ) return 0; |
17 | 0 | |
18 | 0 | l = strlen(str); |
19 | 0 |
|
20 | 0 | /* error checking in case we have a 64-bit platform -- make sure |
21 | 0 | * we don't have ultra long strings that overflow an int32 |
22 | 0 | */ |
23 | 0 | if( sizeof(PRUint32) < sizeof(size_t) ) |
24 | 0 | { |
25 | 0 | if( l > PR_INT32_MAX ) |
26 | 0 | PR_Assert("l <= PR_INT32_MAX", __FILE__, __LINE__); |
27 | 0 | } |
28 | 0 |
|
29 | 0 | return (PRUint32)l; |
30 | 0 | } |
31 | | |
32 | | PR_IMPLEMENT(PRUint32) |
33 | | PL_strnlen(const char *str, PRUint32 max) |
34 | 0 | { |
35 | 0 | register const char *s; |
36 | 0 |
|
37 | 0 | if( (const char *)0 == str ) return 0; |
38 | 0 | for( s = str; max && *s; s++, max-- ) |
39 | 0 | ; |
40 | 0 |
|
41 | 0 | return (PRUint32)(s - str); |
42 | 0 | } |