print-type-with-clang-and-gcc-use-cxxabi

cxx-print-type.cpp

#include <cxxabi.h>
#include <iostream>


#if __cplusplus < 202002
#define print_type(x)                                                    \
    std::cout << #x << typeid(x).name() << " => "                        \
              << abi::__cxa_demangle(typeid(x).name(), NULL, NULL, NULL) \
              << std::endl
#else
#include <format>
#define print_type(x)                            \
    std::cout << std::format(                    \
        "{} : {} => {}\n", #x, typeid(x).name(), \
        abi::__cxa_demangle(typeid(x).name(), NULL, NULL, NULL))
#endif