/* Copyright (C) 2000 Free Software Foundation, Inc.  *//* { dg-do preprocess } *//* Tests behavior of the defined operator.  *//*  Source: Neil Booth, 29 Oct 2000, Zack Weinberg 11 Dec 2000.  */#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/* Use of defined in different contexts.  */#define bad1 defined#if !bad1 Z			/* { dg-warning "may not be portable" } */#error Z is defined#endif #if !bad1 (Z)			/* { dg-warning "may not be portable" } */#error Z is defined#endif #define bad2 defined (Z#if !bad2)			/* { dg-warning "may not be portable" } */#error Z is defined#endif