string.c

来自「作基于日立公司superh系列微处理器嵌入式操作系统bootloader源代码」· C语言 代码 · 共 23 行

#include <stddef.h>

/* Implementation taken from Linux kernel (linux/lib/string.c) */

size_t strlen(const char * s)
{
	const char *sc;

	for (sc = s; *sc != '\0'; ++sc)
		/* nothing */;
	return sc - s;
}

void * memcpy(void * dest,const void *src,size_t count)
{
	char *tmp = (char *) dest, *s = (char *) src;

	while (count--)
		*tmp++ = *s++;

	return dest;
}