C++ debug type prints

print_type_of.cpp

#include <iostream>

template <typename T>
void print_type_of(T value = T()) {
    (void)value;
    std::clog << __PRETTY_FUNCTION__ << std::endl;
}

int main()
{
    float x = 3.14;
    print_type_of(x);

    print_type_of<std::string>();
}