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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 553 | serge | 1 | /**************************************************************************** |
| 2 | * |
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| 3 | * Open Watcom Project |
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| 4 | * |
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| 5 | * Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved. |
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| 6 | * |
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| 7 | * ======================================================================== |
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| 8 | * |
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| 9 | * This file contains Original Code and/or Modifications of Original |
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| 10 | * Code as defined in and that are subject to the Sybase Open Watcom |
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| 11 | * Public License version 1.0 (the 'License'). You may not use this file |
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| 12 | * except in compliance with the License. BY USING THIS FILE YOU AGREE TO |
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| 13 | * ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is |
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| 14 | * provided with the Original Code and Modifications, and is also |
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| 15 | * available at www.sybase.com/developer/opensource. |
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| 16 | * |
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| 17 | * The Original Code and all software distributed under the License are |
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| 18 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
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| 19 | * EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM |
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| 20 | * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF |
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| 21 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR |
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| 22 | * NON-INFRINGEMENT. Please see the License for the specific language |
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| 23 | * governing rights and limitations under the License. |
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| 24 | * |
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| 25 | * ======================================================================== |
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| 26 | * |
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| 27 | * Description: WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE |
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| 28 | * DESCRIBE IT HERE! |
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| 29 | * |
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| 30 | ****************************************************************************/ |
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| 31 | |||
| 32 | |||
| 33 | #include "variety.h" |
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| 34 | #include |
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| 35 | |||
| 36 | #ifdef M_I86 |
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| 37 | |||
| 38 | extern char _WCFAR *_fast_strrchr( const char _WCFAR *, char ); |
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| 39 | |||
| 40 | #pragma aux _fast_strrchr = \ |
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| 41 | 0xb9 0xff 0xff /* mov cx,ffffh */ \ |
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| 42 | 0x30 0xc0 /* xor al,al */ \ |
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| 43 | 0xf2 0xae /* repne scasb */ \ |
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| 44 | 0xf7 0xd1 /* not cx */ \ |
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| 45 | 0x4f /* dec di */ \ |
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| 46 | 0x88 0xd8 /* mov al,bl */ \ |
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| 47 | 0xfd /* std */ \ |
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| 48 | 0xf2 0xae /* repne scasb */ \ |
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| 49 | 0xfc /* cld */ \ |
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| 50 | 0x75 0x04 /* jne L1 */ \ |
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| 51 | 0x89 0xf9 /* mov cx,di */ \ |
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| 52 | 0x41 /* inc cx */ \ |
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| 53 | 0xa9 /* hide 2 bytes */ \ |
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| 54 | 0x8e 0xc1 /* L1: mov es,cx */ \ |
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| 55 | parm caller [es di] [bl] \ |
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| 56 | value [es cx] \ |
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| 57 | modify exact [es cx ax di]; |
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| 58 | #endif |
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| 59 | |||
| 60 | /* Locate the last occurrence of c in the string pointed to by s. |
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| 61 | The terminating null character is considered to be part of the string. |
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| 62 | If the character c is not found, NULL is returned. |
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| 63 | */ |
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| 64 | |||
| 65 | _WCRTLINK char _WCFAR *_fstrrchr( const char _WCFAR *s, int c ) |
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| 66 | { |
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| 67 | #if defined(M_I86) |
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| 68 | return( _fast_strrchr( s, c ) ); |
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| 69 | #else |
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| 70 | char _WCFAR *p; |
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| 71 | |||
| 72 | p = NULL; /* assume c will not be found */ |
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| 73 | do { |
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| 74 | if( *s == c ) p = (char _WCFAR *)s; |
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| 75 | } while( *s++ != '\0' ); |
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| 76 | return( p ); |
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| 77 | #endif |
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| 78 | } |