C++ printf Debugging using macros / g++ -std=c++17 macro.cpp -o macro

macro.cpp

 

28분 29초

https://youtu.be/YzIBwqWC6EM

 

 

 

// macro.cpp
// g++ -std=c++17 macro.cpp -o macro

#include <iostream>

// Note the '\' allos us to use multiple lines
#define PRINT(x, line, file) \
    std::cout << file << ":" << line << ": ";  \
    std::cout << "Value is : " << (x) << "\n";
    
int main() {
	
    float PI = 3.1415;
    
    PRINT(PI,__LINE__,__FILE__)
    
    return 0;
}

 

 

 

 

 

 

PS D:\young_project\cpp_lang\macro> .\macro.exe
macro.cpp:12: Value is : 3.1415

 

 

 

 

 

 

 

 

 

 

 

 

 

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