strchr.c

来自「harvest是一个下载html网页得机器人」· C语言 代码 · 共 21 行

/*
 * Local copy of strchr (a.k.a. index) for portability.
 * Totally public domain.
 */

#include <stdio.h>

char *
     strchr(s, c)
     char *s, c;
{
	char *x = s;

	while (*x != c)
		if (*x == '\0')
			return (NULL);
		else
			++x;
	return (x);
}