strrchr.c
上传用户:nvosite88
上传日期:2007-01-17
资源大小:4983k
文件大小:1k
- /* strrchr.c - string search, string */
- /* Copyright 1992-1993 Wind River Systems, Inc. */
- /*
- modification history
- --------------------
- 01c,25feb93,jdi documentation cleanup for 5.1.
- 01b,20sep92,smb documentation additions
- 01a,08jul92,smb written and documented.
- */
- /*
- DESCRIPTION
- INCLUDE FILES: string.h
- SEE ALSO: American National Standard X3.159-1989
- NOMANUAL
- */
- #include "vxWorks.h"
- #include "string.h"
- /******************************************************************************
- *
- * strrchr - find the last occurrence of a character in a string (ANSI)
- *
- * This routine locates the last occurrence of <c> in the string pointed
- * to by <s>. The terminating null is considered to be part of the string.
- *
- * INCLUDE FILES: string.h
- *
- * RETURNS:
- * A pointer to the last occurrence of the character, or
- * NULL if the character is not found.
- */
- char * strrchr
- (
- const char * s, /* string to search */
- int c /* character to look for */
- )
- {
- char *save = NULL;
- do /* loop, searching for character */
- {
- if (*s == (char) c)
- save = CHAR_FROM_CONST (s);
- } while (*s++ != EOS);
- return (CHAR_FROM_CONST(save));
- }