C++ comparison of integers with float

Question

I have the following code.that demonstrates the problem I am having. How come the comparison is not evaluating to true? Is this a limitation of integer and floating point comparisons?

#include <iostream>

int main(){

    double m = -0.625;
    if((-1)<=m<=0){
        std::cout << "Enter here" <<std::endl;
    }
    return 0;
}

Answer 1

You can't do three way comparison like that in C. Change it to the following and it'll work:

if((-1) <= m && m <= 0){
        std::cout << "Enter here" <<std::endl;
    }