source:
trunk/sys/dietlibc/memmove.c
@
398
Last change on this file since 398 was 1, checked in by , 8 years ago | |
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File size: 382 bytes |
Rev | Line | |
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[1] | 1 | #define _POSIX_SOURCE |
2 | #define _XOPEN_SOURCE | |
3 | #include <sys/types.h> | |
4 | #include <string.h> | |
5 | ||
6 | void *memmove(void *dst, const void *src, size_t count) | |
7 | { | |
8 | char *a = dst; | |
9 | const char *b = src; | |
10 | if (src!=dst) | |
11 | { | |
12 | if (src>dst) | |
13 | { | |
14 | while (count--) *a++ = *b++; | |
15 | } | |
16 | else | |
17 | { | |
18 | a+=count-1; | |
19 | b+=count-1; | |
20 | while (count--) *a-- = *b--; | |
21 | } | |
22 | } | |
23 | return dst; | |
24 | } |
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