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09.cpp
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09.cpp
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//program without a main function
// 1. using static initializer
#include<iostream>
using namespace std;
int execute()
{
cout<<"Under excute function";
exit(EXIT_SUCCESS);
}
static int s = execute();
int main()
{
cout<<"Inside main function"<<endl;
}
//----------
//using gcc_startb function
// #include<stdio.h>
// void _start()
// {
// printf("Inside start function..!");
// _exit(0);
// }
//-------
//using macro definition
// #include<iostream>
// #define replace(a,b,c,d) a##b##c##d
// #define execute replace(m,a,i,n)
// int execute()
// {
// std::cout<<"hello world";
// return 0;
// }
//-------
//using a constructor
// #include<iostream>
// using namespace std;
// class Demo
// {
// public:
// Demo()
// {
// cout<<"Inside the constructor"<<endl;
// exit(EXIT_SUCCESS);
// }
// };
// static Demo s;
// int main()
// {
// cout<<"Inside the main function"<<endl;
// }