Fill is a template function used to initialize array or vectors using the some value. You should specify the starting pointer , number of elements to be reseted and value to be reseted.
Fill is the standard c++ function comes under the namespace std.
You can use fill to fill the array from intermediate.
SYNTAX:
void fill(type *start,type *end,const int reset_value);
SAMPLE PROGRAM:
#include<iostream>
int main()
{
using namespace std;
char arr[]="123456";
printf("\n arr :: %s ", arr );
fill(arr,arr+5,'a');
printf("\n arr :: %s ", arr );
return 0;
}
LIMITATIONS ON FILL FUNCTION:
- you can reset the value in sequence only
- This is similar to for loop internally
- use of memset is efficient when compare to fill but memset works on bytes level.
PROGRAMMING USAGE:
- used for filling some range of value in the array
- used for initializing array and vector