diff options
Diffstat (limited to 'trunk/missing/memmove.c')
-rw-r--r-- | trunk/missing/memmove.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/trunk/missing/memmove.c b/trunk/missing/memmove.c new file mode 100644 index 0000000000..19c5f18847 --- /dev/null +++ b/trunk/missing/memmove.c @@ -0,0 +1,21 @@ +/* public domain rewrite of memcmp(3) */ + +#include <stddef.h> + +void * +memmove(void *d, const void *s, size_t n) +{ + char *dst = (char *)d; + const char *src = (const char *)s; + + if (src < dst) { + src += n; + dst += n; + for (; n; --n) + *--dst = *--src; + } + else if (dst < src) + for (; n; --n) + *dst++ = *src++; + return d; +} |