source:
trunk/sys/dietlibc/memmove.c
@
275
Last change on this file since 275 was 1, checked in by , 8 years ago | |
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File size: 382 bytes |
Line | |
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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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