std::pow with integer parameters, comparing to an integer type

Question

According to http://en.cppreference.com/w/cpp/numeric/math/pow , when std::pow is used with integer parameters, the result is promoted to a double.

Answer 1

For that specific example, it should always return false, especially since you are using type int, so that wouldn't have rounding errors.

The places where you would want to be cautious about rounding errors is when you're comparing two different arithmetic functions that return floats or doubles with long decimals. Many times they would return as unequal due to different rounding and different operations occurring.