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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libiberty/bcopy.c
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Diffstat (limited to 'libiberty/bcopy.c')
-rw-r--r--libiberty/bcopy.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/libiberty/bcopy.c b/libiberty/bcopy.c
new file mode 100644
index 000000000..f9b7a8acd
--- /dev/null
+++ b/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 = (const char *) src;
+ char *firstd = (char *) dest;
+ while (len--)
+ *firstd++ = *firsts++;
+ }
+ else
+ {
+ const char *lasts = (const char *)src + (len-1);
+ char *lastd = (char *)dest + (len-1);
+ while (len--)
+ *lastd-- = *lasts--;
+ }
+}