overload1.c

gcc-you can use this code to learn something about gcc, and inquire further into linux,

// Build don't link:
// Special g++ Options: -fpermissive

// Copyright (C) 2000 Free Software Foundation, Inc.
// Contributed by Nathan Sidwell 28 Feb 2001 <[e-mail]>

// Make sure we warn about our overload extension about picking the
// one with the least worse conversion

struct X
{
  X (int);
};
void Foo (int, float, bool);
void Foo (float, int, X);

void Baz ()
{
  Foo (1, 1, 0);    // WARNING - least worse
}