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Diffstat (limited to 'contrib/gcclibs/libiberty/bcopy.c')
-rw-r--r-- | contrib/gcclibs/libiberty/bcopy.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/contrib/gcclibs/libiberty/bcopy.c b/contrib/gcclibs/libiberty/bcopy.c new file mode 100644 index 0000000..1e2eca9 --- /dev/null +++ b/contrib/gcclibs/libiberty/bcopy.c @@ -0,0 +1,31 @@ +/* bcopy -- copy memory regions of arbitary length + +@deftypefn Supplemental void bcopy (char *@var{in}, char *@var{out}, int @var{length}) + +Copies @var{length} bytes from memory region @var{in} to region +@var{out}. The use of @code{bcopy} is deprecated in new programs. + +@end deftypefn + +*/ + +#include <stddef.h> + +void +bcopy (const void *src, void *dest, size_t len) +{ + if (dest < src) + { + const char *firsts = src; + char *firstd = dest; + while (len--) + *firstd++ = *firsts++; + } + else + { + const char *lasts = (const char *)src + (len-1); + char *lastd = (char *)dest + (len-1); + while (len--) + *lastd-- = *lasts--; + } +} |