PreDir, C++ (gcc) - rextester

PreDir

//g++  7.4.0
//Preprocessor Directives
//this code is created by Rezaul Hoque on November 24,2021;contact: jewelmrh@yahoo.com
//note: codes shared by Rezaul Hoque on rextester are not for sale; they are created and shared to facilitate the algorithm learning process; many like Hoque use this platform to practice programming ;Rezaul hopes his contribution helps others to fine tune their learning;

#include <iostream>
using namespace std;
#ifndef size 
#define size 2
#endif
#define s(c) #c

#define add(a,b) a##b

int main()
{
int l;
for(l=0;l<size; l++)
{
if(l%2==0)
{
  std::cout<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<"\n";
}
else
{
std::cout<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<"\n";
}
}

add(c,out)<<"Preprocessor Directives in action:";
std::cout<<"\n";
std::cout<<__DATE__;
std::cout<<"\nTime:"<<__TIME__;
std::cout<<" \n";
for(l=0;l<size; l++)
{
if(l%2==0)
{
  std::cout<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<s(<)<<"\n";
}
else
{
std::cout<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<s(>)<<"\n";
}
}
return 0;
}


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