5.13 memset—set an area of memory

Synopsis

#include <string.h>
void *memset(void *dst, int c, size_t length);

Description
This function converts the argument c into an unsigned char and fills the first length characters of the array pointed to by dst to the value.

Returns
memset returns the value of dst.

Portability
memset is ANSI C.

memset requires no supporting OS subroutines.