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Log inA main program without main :)
A main program without main :)
Invincible on Thu Aug 21, 2008 2:13 pm
Here goes the challenge to all.......... 
Write a C program without the function main()...........
Write a C program without the function main()...........
Invincible- Posts: 2
Join date: 2008-08-10 
Re: A main program without main :)
Beagle on Thu Aug 28, 2008 12:05 pm
#include <stdio.h>
#define decode(s,t,u,m,p,e,d) m##s##u##t
#define begin decode(a,n,i,m,a,t,e)
int begin()
{
printf("Hello World!");
return 0;
}
#define decode(s,t,u,m,p,e,d) m##s##u##t
#define begin decode(a,n,i,m,a,t,e)
int begin()
{
printf("Hello World!");
return 0;
}
Beagle- Posts: 9
Join date: 2008-08-12 -
Re: A main program without main :)
Admin on Fri Aug 29, 2008 3:54 am
you have done dis through macros ultimately u r using main question is not that
wat u have to do is not to use main u have to use your startup function ........
wat u have to do is not to use main u have to use your startup function ........
Admin- Admin
- Posts: 39
Join date: 2008-08-03 -
Re: A main program without main :)
arahan on Wed Oct 15, 2008 1:53 pm
#include<stdio.h>
#include <unistd.h>
_start()
{
_exit(my_main());
}
int my_main(void)
{
printf("Hello\n");
return 42;
}
compile with
gcc -O3 -nostartfiles test.c
#include <unistd.h>
_start()
{
_exit(my_main());
}
int my_main(void)
{
printf("Hello\n");
return 42;
}
compile with
gcc -O3 -nostartfiles test.c
arahan- Posts: 4
Join date: 2008-10-14 -
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