File: memmove.c

package info (click to toggle)
ruby1.9.1 1.9.2.0-2%2Bdeb6u2
  • links: PTS, VCS
  • area: main
  • in suites: squeeze
  • size: 58,816 kB
  • ctags: 86,962
  • sloc: ruby: 494,323; ansic: 482,758; yacc: 17,551; sh: 3,694; lisp: 1,883; tcl: 949; pascal: 720; makefile: 599; xml: 64; perl: 62; python: 47; awk: 36; sed: 27; asm: 25
file content (21 lines) | stat: -rw-r--r-- 346 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
/* public domain rewrite of memcmp(3) */

#include <stddef.h>

void *
memmove(void *d, const void *s, size_t n)
{
    char *dst = (char *)d;
    const char *src = (const char *)s;

    if (src < dst) {
	src += n;
	dst += n;
	for (; n; --n)
	    *--dst = *--src;
    }
    else if (dst < src)
	for (; n; --n)
	    *dst++ = *src++;
    return d;
}