how to do an if else depending type of type in c++ template?

Question

(This question already has answers here): question from:https://stackoverflow.com/questions/15199833/how-to-do-an-if-else-depending-type-of-type-in-c-template

Answer 1

You could use typeid:

if (typeid(T) == typeid(int))

Or you could use the std::is_same type trait:

if (std::is_same<T, int>::value)