Old-style function declaration: warning #2027: Missing prototype for

[iZzz32]

Fresh Pelles C, console project, default settings. A code:

Code: [Select]

#include <stdio.h>
int xyzzy()
{
  return 0;
}

int main(void)
{
  xyzzy();
  return 0;
}
produces the following error message:

Code: [Select]

Building test.obj.
pellesc650-test\test.c(4): warning #2027: Missing prototype for 'xyzzy'.
*** Error code: 1 ***
Is it ok?

[Stefan Pendl]

Code: [Select]

#include <stdio.h>
int xyzzy(void,...)
{
  return 0;
}

int main(void)
{
  xyzzy(1);
  return 0;
}

The above should be OK, if you really need variable arguments.

[Pelle]

Code: [Select]

func() In C++ this means the function takes no arguments, in C it means the function takes any number of arguments. The message could probably be clearer, but it was already available and is good enough...