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Yaroslav Polyakov
Yaroslav Polyakov

Posted on • Edited on

Every C program has main()? (False)

#c #main #myth

actually, _start is real magic word.

nomain.c:

#include <stdio.h>

extern void _exit(register int);

int _start(){
    printf("Hello world!\n");
    _exit(0);
}
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$ gcc -o nomain nomain.c -nostartfiles
$ ./nomain 
Hello world!
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