How do I perform tag dispatch and enable_if?

Learn how to utilize tag dispatch and std::enable_if in C++ to create more flexible and type-safe functions based on different types.

C++, tag dispatch, enable_if, template programming, type traits

        #include <iostream>
        #include <type_traits>

        // Primary template for tag dispatch
        template <typename T>
        void process(T value, typename std::enable_if<std::is_integral<T>::value, T>::type = 0) {
            std::cout << "Processing integral type: " << value << std::endl;
        }

        template <typename T>
        void process(T value, typename std::enable_if<std::is_floating_point<T>::value, T>::type = 0) {
            std::cout << "Processing floating-point type: " << value << std::endl;
        }

        int main() {
            process(10);        // Calls the integral version
            process(3.14);     // Calls the floating-point version
            return 0;
        }
        

C++ tag dispatch enable_if template programming type traits