builtins6.c

来自「Mac OS X 10.4.9 for x86 Source Code gcc」· C语言 代码 · 共 20 行

// { dg-do run  }
// { dg-options "-O2" }
// Test that built-in functions are recognized with a prototype.
// Origin: Roger Sayle  Mar 20, 2002
// Copyright (C) 2002 Free Software Foundation.
//

typedef __SIZE_TYPE__ size_t;
extern "C" size_t strlen (const char*);
extern "C" void link_error (void);

int
main ()
{
  if (strlen ("foo") != 3)
    link_error ();
  return 0;
}