1 // { dg-do run  }
2 // { dg-options "-O2" }
3 // Test that built-in functions are recognized with a prototype.
4 // Origin: Roger Sayle  Mar 20, 2002
5 // Copyright (C) 2002 Free Software Foundation.
6 //
7 
8 typedef __SIZE_TYPE__ size_t;
9 extern "C" size_t strlen (const char*);
10 extern "C" void link_error (void);
11 
12 int
main()13 main ()
14 {
15   if (strlen ("foo") != 3)
16     link_error ();
17   return 0;
18 }
19 
20