C++之__LINE__, __FILE__, __FUNCDNAME__宏定义
直接上结果
代码如下
#include <iostream>#include <typeinfo>#include <iomanip>/*@file 学习__LINE__, __FILE__, __FUNCDNAME__ 等宏定义的用法@link http://msdn.microsoft.com/zh-cn/library/b0084kay.aspx@link http://www.cnitblog.com/zouzheng/archive/2007/08/31/32691.aspx*/#pragma region 测试 函数名的三个宏，不是ANSI的标准宏void testFunctionMacro (int a, float b) {std::cout << std::endl;std::cout << std::left << std::setw(16) << "__FUNCTION__" << " : " << __FUNCTION__ << std::endl;std::cout << std::left << std::setw(16) << "__FUNCDNAME__" << " : " << __FUNCDNAME__ << std::endl;std::cout << std::left << std::setw(16) << "__FUNCSIG__" << " : " << __FUNCSIG__ << std::endl;}void testFunctionMacro (int a) {std::cout << std::endl;std::cout << std::left << std::setw(16) << "__FUNCTION__" << " : " << __FUNCTION__ << std::endl;std::cout << std::left << std::setw(16) << "__FUNCDNAME__" << " : " << __FUNCDNAME__ << std::endl;std::cout << std::left << std::setw(16) << "__FUNCSIG__" << " : " << __FUNCSIG__ << std::endl;}// Demonstrates functionality of __FUNCTION__, __FUNCDNAME__, and __FUNCSIG__ macrosvoid testFunctionMacro() {std::cout << std::endl;std::cout << std::left << std::setw(16) << "__FUNCTION__" << " : " << __FUNCTION__ << std::endl;std::cout << std::left << std::setw(16) << "__FUNCDNAME__" << " : " << __FUNCDNAME__ << std::endl;std::cout << std::left << std::setw(16) << "__FUNCSIG__" << " : " << __FUNCSIG__ << std::endl;}#pragma endregion#pragma region 测试__LINE__等宏，ANSI的标准宏void test__ANSI__Macro() {std::cout << std::left << std::setw(16) << "__FILE__" << " : " << __FILE__ << std::endl;std::cout << std::left << std::setw(16) << "__LINE__" << " : " << __LINE__ << std::endl;std::cout << std::left << std::setw(16) << "__DATE__" << " : " << __DATE__ << std::endl;std::cout << std::left << std::setw(16) << "__TIME__" << " : " << __TIME__ << std::endl;std::cout << std::left << std::setw(16) << "__TIMESTAMP__" << " : " << __TIMESTAMP__ << std::endl;}#pragma endregionvoid main() {test__ANSI__Macro();std::cout << std::endl; testFunctionMacro (1, 2); testFunctionMacro (1); testFunctionMacro();}