版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/davied9/article/details/85286426
最近喜欢用编译器搞些事情，记录一下获取类型名和获取基础类型的方式
type_traits.h
#ifndef __TYPE_TRAITS_H_INCLUDED__
#define __TYPE_TRAITS_H_INCLUDED__
#include <complex>
typedef char sint8 ;
typedef unsigned char uint8 ;
typedef short sint16;
typedef unsigned short uint16;
typedef int sint32;
typedef unsigned int uint32;
typedef long long sint64;
typedef unsigned long long uint64;
typedef long slong ;
typedef unsigned long ulong ;
template<typename T> struct type_name { };
template<> struct type_name<float > { static const char* value; };
template<> struct type_name<double> { static const char* value; };
template<> struct type_name<sint8 > { static const char* value; };
template<> struct type_name<uint8 > { static const char* value; };
template<> struct type_name<sint16> { static const char* value; };
template<> struct type_name<uint16> { static const char* value; };
template<> struct type_name<sint32> { static const char* value; };
template<> struct type_name<uint32> { static const char* value; };
template<> struct type_name<sint64> { static const char* value; };
template<> struct type_name<uint64> { static const char* value; };
template<> struct type_name<slong > { static const char* value; };
template<> struct type_name<ulong > { static const char* value; };
template<> struct type_name<std::complex<float >> { static const char* value; };
template<> struct type_name<std::complex<double>> { static const char* value; };
template<> struct type_name<std::complex<sint8>> { static const char* value; };
template<> struct type_name<std::complex<uint8>> { static const char* value; };
template<> struct type_name<std::complex<sint16>> { static const char* value; };
template<> struct type_name<std::complex<uint16>> { static const char* value; };
template<> struct type_name<std::complex<sint32>> { static const char* value; };
template<> struct type_name<std::complex<uint32>> { static const char* value; };
template<> struct type_name<std::complex<sint64>> { static const char* value; };
template<> struct type_name<std::complex<uint64>> { static const char* value; };
template<> struct type_name<std::complex<slong >> { static const char* value; };
template<> struct type_name<std::complex<ulong >> { static const char* value; };
template<typename T> struct base_type { typedef T result_type;};
template<typename eT> struct base_type<std::complex<eT>> { typedef eT result_type;};
namespace Private {
template<bool, bool, int> struct __long_name_str {}; /*complex, signed, byte size*/
template<> struct __long_name_str<false, true, 2> { static const char* value; };
template<> struct __long_name_str<false, true, 4> { static const char* value; };
template<> struct __long_name_str<false, true, 8> { static const char* value; };
template<> struct __long_name_str<true, true, 2> { static const char* value; };
template<> struct __long_name_str<true, true, 4> { static const char* value; };
template<> struct __long_name_str<true, true, 8> { static const char* value; };
template<> struct __long_name_str<false, false, 2> { static const char* value; };
template<> struct __long_name_str<false, false, 4> { static const char* value; };
template<> struct __long_name_str<false, false, 8> { static const char* value; };
template<> struct __long_name_str<true, false, 2> { static const char* value; };
template<> struct __long_name_str<true, false, 4> { static const char* value; };
template<> struct __long_name_str<true, false, 8> { static const char* value; };
} /*namespace ::Private*/
#endif // __TYPE_TRAITS_H_INCLUDED__type_traits.cpp
#include "type_traits.h"
namespace Private {
/*template<bool, bool, int> struct __long_name_str {};*/ /*complex, signed, byte size*/
const char* __long_name_str<false, true, 2>::value = "slong 16";
const char* __long_name_str<false, true, 4>::value = "slong 32";
const char* __long_name_str<false, true, 8>::value = "slong 64";
const char* __long_name_str<true, true, 2>::value = "complex slong 16";
const char* __long_name_str<true, true, 4>::value = "complex slong 32";
const char* __long_name_str<true, true, 8>::value = "complex slong 64";
const char* __long_name_str<false, false, 2>::value = "ulong 16";
const char* __long_name_str<false, false, 4>::value = "ulong 32";
const char* __long_name_str<false, false, 8>::value = "ulong 64";
const char* __long_name_str<true, false, 2>::value = "complex ulong 16";
const char* __long_name_str<true, false, 4>::value = "complex ulong 32";
const char* __long_name_str<true, false, 8>::value = "complex ulong 64";
} /*namespace ::Private*/
const char* type_name<float>::value = "float";
const char* type_name<double>::value = "double";
const char* type_name<sint8>::value = "sint8";
const char* type_name<uint8>::value = "uint8";
const char* type_name<sint16>::value = "sint16";
const char* type_name<uint16>::value = "uint16";
const char* type_name<sint32>::value = "sint32";
const char* type_name<uint32>::value = "uint32";
const char* type_name<sint64>::value = "sint64";
const char* type_name<uint64>::value = "uint64";
const char* type_name<slong>::value = Private::__long_name_str<false, true, sizeof(slong)>::value;
const char* type_name<ulong>::value = Private::__long_name_str<false, false, sizeof(ulong)>::value;
const char* type_name<std::complex<float>>::value = "complex float";
const char* type_name<std::complex<double>>::value = "complex double";
const char* type_name<std::complex<sint8>>::value = "complex sint8";
const char* type_name<std::complex<uint8>>::value = "complex uint8";
const char* type_name<std::complex<sint16>>::value = "complex sint16";
const char* type_name<std::complex<uint16>>::value = "complex uint16";
const char* type_name<std::complex<sint32>>::value = "complex sint32";
const char* type_name<std::complex<uint32>>::value = "complex uint32";
const char* type_name<std::complex<sint64>>::value = "complex sint64";
const char* type_name<std::complex<uint64>>::value = "complex uint64";
const char* type_name<std::complex<slong>>::value = Private::__long_name_str<true, true, sizeof(slong)>::value;
const char* type_name<std::complex<ulong>>::value = Private::__long_name_str<true, false, sizeof(ulong)>::value;