Why does this infinite loop happen?

Question

I made this code but it keeps giving endless loop and I can’t fix...

#include <stdio.h>

int main (){
int x, z;

        while("x=100; x!=65; x-=5"){
            z=x*x;
            printf("%d --> %d\n", x, z);
        }
}

Answer 1

I’m pretty sure it’s because of the quotes:

"x=100; x!=65; x-=5"

Remove them:

 while(x=100; x!=65; x-=5){

values between quotation marks in C are char *, which means you didn’t pass the variables, but yes char, and pro loop break needs to pass a value like "false", yet while does not work with ;, you probably want to use the for:

for (x=100; x!=65; x-=5){
    z=x*x;
    printf("%d --> %d\n", x, z);
}

Or if it’s the while you can use it like this:

x=100;

while (x!=65){
    z=x*x;
    printf("%d --> %d\n", x, z);
    x-=5;
}