diff options
Diffstat (limited to 'gettext-tools/gnulib-lib/memmove.c')
-rw-r--r-- | gettext-tools/gnulib-lib/memmove.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gettext-tools/gnulib-lib/memmove.c b/gettext-tools/gnulib-lib/memmove.c new file mode 100644 index 0000000..0f04054 --- /dev/null +++ b/gettext-tools/gnulib-lib/memmove.c @@ -0,0 +1,26 @@ +/* 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; +} |