Rev 8793 | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 8793 | Rev 9765 | ||
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| 1 | /* strstr( const char *, const char * ) |
1 | /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */ |
| 2 | - | ||
| 3 | This file is part of the Public Domain C Library (PDCLib). |
2 | #include "unconst.h" |
| 4 | Permission is granted to use, modify, and / or redistribute at will. |
- | |
| 5 | */ |
- | |
| 6 | - | ||
| 7 | #include |
3 | #include |
| Line 8... | Line 4... | ||
| 8 | 4 | ||
| 9 | char * strstr( const char * s1, const char * s2 ) |
- | |
| 10 | { |
- | |
| 11 | const char * p1 = s1; |
- | |
| 12 | const char * p2; |
- | |
| 13 | - | ||
| 14 | while ( *s1 ) |
5 | char* strstr(const char* s, const char* find) |
| 15 | { |
6 | { |
| - | 7 | char c, sc; |
|
| Line 16... | Line 8... | ||
| 16 | p2 = s2; |
8 | size_t len; |
| - | 9 | ||
| 17 | 10 | if ((c = *find++) != 0) { |
|
| 18 | while ( *p2 && ( *p1 == *p2 ) ) |
11 | len = strlen(find); |
| - | 12 | do { |
|
| - | 13 | do { |
|
| - | 14 | if ((sc = *s++) == 0) |
|
| - | 15 | return 0; |
|
| 19 | { |
16 | } while (sc != c); |
| 20 | ++p1; |
17 | } while (strncmp(s, find, len) != 0); |
| 21 | ++p2; |
- | |
| 22 | } |
- | |
| 23 | - | ||
| 24 | if ( ! *p2 ) |
18 | s--; |
| 25 | { |
- | |
| 26 | return ( char * ) s1; |
- | |
| 27 | } |
- | |
| 28 | - | ||
| 29 | ++s1; |
- | |
| 30 | p1 = s1; |
- | |
| 31 | } |
- | |
| 32 | 19 | } |
|
| 33 | return NULL; |
20 | return unconst(s, char*); |