#include <limits>
#include "calc.h"

float add(float a, float b) {
    return a + b;
}

float sub(float a, float b) {
    return a - b;
}

float mul(float a, float b) {
    return a * b;
}

float div(float a, float b) {
    if (b != 0) {
        return a / b;
    }
    return std::numeric_limits<double>::infinity();
}