memset_pattern(3) BSD Library Functions Manual memset_pattern(3)
NAME
memset_pattern4, memset_pattern8, memset_pattern16 -- memset of a multi-
byte pattern
LIBRARY
Standard C Library (libc, -lc)
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.
Darwin October 14, 2005 Darwin
Mac OS X 10.8 - Generated Wed Aug 29 07:44:35 CDT 2012