rindex.c

来自「mips架构的bootloader,99左右的版本 但源代码现在没人更新了」· C语言 代码 · 共 27 行

/*************************************************************
 * File: lib/rindex.c
 * Purpose: Part of C runtime library
 * Author: Phil Bunce ([e-mail])
 * Revision History:
 *	970304	Start of revision history
 */

#include "string.h"

/** char *rindex(s,c) returns ptr to c in s, starting at end of s, else 0 */
char *rindex(s,c)
char *s;
int c;
{
char *p;

if (s == 0) return(0);

for (p=s;*p;p++) ;
for (;p >= s;p--) {
	if (*p == c) return(p);
	}
return(0);
}