Description:

• This function counts the number of trailing zeros in the binary representation of an integer.

Syntax:

int __builtin_ctz(unsigned int x);

Example:

#include <iostream>

int main() {
    unsigned int x = 16; // Binary: 00000000000000000000000000010000
    int trailing_zeros = __builtin_ctz(x);
    std::cout << "Number of trailing zeros in " << x << " is " << trailing_zeros << std::endl; // Output: 4

    return 0;
}