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;
}
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