Const Keyword in C for Creating Read Only Variables
Source code for this Tutorial
#include <stdio.h>
#include <stdlib.h>
void display(const float *ptr);
int main()
{
const float pi = 3.142;
display(&pi);
printf("%f\n",pi);
return 0;
}
void display(const float *ptr){
printf("%f\n",*ptr);
// *ptr = 200.0;
}