c++: macro: debug log

gistfile1.cpp

#include <iostream>

#define DEBUG 1

void PrintInfo( const char *str )
{
    std::cout << str << std::endl;
}

#if DEBUG
    #define LOG_INFO( str ) PrintInfo( str )
#else
    #define LOG_INFO( str ) 0
#endif

int _tmain( int argc, char *argv[] )
{
    LOG_INFO( "teszt" );

    return 0;
}