MEMSET_PATTERN(3)

NAME
memset_pattern4, memset_pattern8, memset_pattern16 - memset of a multi-byte pattern

LIBRARY
libc

SYNOPSIS
#include <string.h>
void
memset_pattern4(void *b, const void *pattern4, size_t len);
void
memset_pattern8(void *b, const void *pattern8, size_t len);
void
memset_pattern16(void *b, const void *pattern16, size_t len);

DESCRIPTION
These are analogous to memset(), except that they fill memory with a replicated pattern either 4, 8, or 16 bytes long. b points to a buffer of size len bytes which is to be filled. The second parameter points to the pattern. If the buffer length is not an even multiple of the pattern length, the last instance of the pattern will be truncated. Neither the buffer nor the pattern pointer need be aligned.

EXAMPLES
The following example:

    char buf[10];
    memset_pattern4( buf, "1234", sizeof(buf) );

will set the buffer to the value "1234123412".

SEE ALSO
memset(3)

HISTORY
These functions first appeared in Mac OS 10.5.