Mercurial > gnulib
view lib/memmove.c @ 40174:b76c7bdde2bf
*-map tests: Fix compilation error.
* tests/test-array_map.c: Include <limits.h>, for CHAR_BIT.
* tests/test-hash_map.c: Likewise.
* tests/test-linkedhash_map.c: Likewise.
author | Colin Watson <cjwatson@debian.org> |
---|---|
date | Sat, 02 Feb 2019 16:12:09 +0100 |
parents | e8d2c6fc33ad |
children |
line wrap: on
line source
/* memmove.c -- copy memory. Copy LENGTH bytes from SOURCE to DEST. Does not null-terminate. In the public domain. By David MacKenzie <djm@gnu.ai.mit.edu>. */ #include <config.h> #include <stddef.h> void * memmove (void *dest0, void const *source0, size_t length) { char *dest = dest0; char const *source = source0; if (source < dest) /* Moving from low mem to hi mem; start at end. */ for (source += length, dest += length; length; --length) *--dest = *--source; else if (source != dest) { /* Moving from hi mem to low mem; start at beginning. */ for (; length; --length) *dest++ = *source++; } return dest0; }