Mercurial > hg > CbC > CbC_gcc
comparison libiberty/bcopy.c @ 0:a06113de4d67
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author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2009 14:47:48 +0900 |
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-1:000000000000 | 0:a06113de4d67 |
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1 /* bcopy -- copy memory regions of arbitary length | |
2 | |
3 @deftypefn Supplemental void bcopy (char *@var{in}, char *@var{out}, int @var{length}) | |
4 | |
5 Copies @var{length} bytes from memory region @var{in} to region | |
6 @var{out}. The use of @code{bcopy} is deprecated in new programs. | |
7 | |
8 @end deftypefn | |
9 | |
10 */ | |
11 | |
12 #include <stddef.h> | |
13 | |
14 void | |
15 bcopy (const void *src, void *dest, size_t len) | |
16 { | |
17 if (dest < src) | |
18 { | |
19 const char *firsts = (const char *) src; | |
20 char *firstd = (char *) dest; | |
21 while (len--) | |
22 *firstd++ = *firsts++; | |
23 } | |
24 else | |
25 { | |
26 const char *lasts = (const char *)src + (len-1); | |
27 char *lastd = (char *)dest + (len-1); | |
28 while (len--) | |
29 *lastd-- = *lasts--; | |
30 } | |
31 } |