C/stdlib.h/calloc

calloc: allocates sufficient memory for an array of num objects of size size

<source lang="cpp">

//Declaration: void *calloc(size_t num, size_t size); //Return: returns a pointer to the first byte of the allocated region.

 #include <stdlib.h>
 #include <stdio.h>
 int main(void){

   float *p;
   p = calloc(100, sizeof(float));
  
   if(!p) {
     printf("Allocation Error\n");
     exit(1);
   }
 }

      </source>