memcpy operands are not supposed to overlap

* include/string.h (memmove): Add prototype.
* i386/i386at/immc.c (immc_cnputc): Replace memcpy with memmove.

1 files changed, 2 insertions, 0 deletions

diff --git a/include/string.h b/include/string.h
index b630c043..8059bedb 100644
--- a/include/string.h
+++ b/include/string.h
@@ -30,6 +30,8 @@
 
 extern void *memcpy (void *dest, const void *src, size_t n);
 
+extern void *memmove (void *dest, const void *src, size_t n);
+
 extern int *memcmp (const void *s1, const void *s2, size_t n);
 
 extern void *memset (void *s, int c, size_t n);