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/* Copyright (C) 2000 Free Software Foundation, Inc.  */

/* { dg-do preprocess } */

/* Tests tradcpp0 with defined.  The defined operator in traditional C

   works just the same as the defined operator in Standard C.  */

/* Source: Zack Weinberg, glibc, Neil Booth 11 Dec 2000.  */

#if defined REGPARMS

#error REGPARMS should not be defined

#endif

#define REGPARMS 1

#if !defined REGPARMS

#error REGPARMS should be defined

#endif

#define defined                 /* { dg-error "defined" } */

/* No diagnostics, though you could argue there should be.  */

#if defined defined

#error defined is defined!

#endif

#define is_Z_defined defined Z

#if defined Z

#error Z is not defined

#endif

/* The behavior of "defined" when it comes from a macro expansion is

   now documented.  */

#if is_Z_defined

#error Macro expanding into defined operator test 1

#endif

#define Z

#if !defined Z

#error Z is defined

#endif

#if !is_Z_defined

#error Macro expanding into defined operator test 2

#endif

#undef is_Z_defined

#undef Z

/* Do all the tests over again with the () form of defined.  */

/* No diagnostics, though you could argue there should be.  */

#if defined(defined)

#error defined is defined!

#endif

#define is_Z_defined defined ( Z )

#if defined(Z)

#error Z is not defined

#endif

/* The behavior of "defined" when it comes from a macro expansion is

   now documented.  */

#if is_Z_defined

#error Macro expanding into defined operator test 1

#endif

#define Z

#if !defined(Z)

#error Z is defined

#endif

#if !is_Z_defined

#error Macro expanding into defined operator test 2

#endif