C: How to compile the code if my file is not having main function?

Question

We have a big bunch of C and C++ code in our product and compile main with g++, because I read in

http://www.parashift.com/c++-faq/overview-mixing-langs.html

that this is needed.

Can we get rid of this condition? For example by not using exceptions, which are not caught and not using global/static non pod variables and not using class wide non pod variables?

I tried to find answers to that, but didn't find anything. Most people don't seem to be aware of that "compile main with c++-compiler" rule. If I missed some resource, please excuse.

Answer 1

#include<stdio.h>
_start()
{
  printf("hello world\n");
}

while compiling;
cc main.c -nostartfiles

Comments

Hi Chirag,
This code would crash unless you use an exit(0) at the end.

0 / EXIT_SUCCESS are the values specified by the standard to indicate successful termination.

I am not sure exactly why a crash is observed. But if you use an exit(0), the program terminates normally.

Can anyone shed some light on as to why a crash is observed in the absence of exit(0) in this code?

---

Ok.... Thankx