The C standard say:

The function called at program startup is named main. The implementation declares no prototype for this function. It shall be defined with a return type of int and with no parameters:

int main(void) { /* ... */ }

or with two parameters (referred to here as argc and argv, though any names may be used, as they are local to the function in which they are declared):

int main(int argc, char *argv[]) { /*
... */ }

or equivalent or in some other implementation-defined manner.

However, Kernighan & Ritchie in their second edition (the canonical ANSI C) bible just use:

main()
{
  /* taram pampam ... */

  return 0;
}

Who is right? Does it have to do with function without return value automatic assume to be returning int in C?

c kr-c
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