C library functions - memset ()
C standard library - <string.h>
description
The first ncharacters C library functionsvoid * memset (void * str,int c, size_t n) Copies charactersc (anunsigned character) to the argumentstrpoints to the string.
statement
Here is the memset () function's declaration.
void *memset(void *str, int c, size_t n)
parameter
- str - point to fill the memory block.
- c - the value to be set.This value is passed as an int, but the function when the memory block is filled using the form unsigned char values.
- n - the number of bytes to be set to that value.
return value
This value returns a pointer to a pointer to the storage area str.
Examples
The following example demonstrates the memset () function is used.
#include <stdio.h>
#include <string.h>
int main ()
{
char str[50];
strcpy(str,"This is string.h library function");
puts(str);
memset(str,'$',7);
puts(str);
return(0);
}
Let's compile and run the above program, which will result in the following:
This is string.h library function $$$$$$$ string.h library function