Header File 

mem.h  

Category 

Memory and String Manipulation Routines 

Prototype 

void setmem(void *dest, unsigned length, char value); 

Description 

Assigns a value to a range of memory. 

setmem sets a block of length bytes, pointed to by dest, to the byte value. 

Return Value 

None. 

Example  

#include <stdio.h>
#include <alloc.h>
#include <mem.h>
int main(void)
{
   char *dest;
   dest = (char *) calloc(21, sizeof(char));
   setmem(dest, 20, 'c');
   printf("%s\n", dest);
   return 0;
}

Portability