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// RUN: %clang_cc1 -fsyntax-only -pedantic -verify %s
#define for 0 // expected-warning {{keyword is hidden by macro definition}}
#define final 1
#define __HAVE_X 0
#define __cplusplus
#define _HAVE_X 0
#define X__Y
#undef for
#undef final
#undef __HAVE_X
#undef __cplusplus
#undef _HAVE_X
#undef X__Y
// allowlisted definitions
#define while while
#define const
#define static
#define extern
#define inline
#undef while
#undef const
#undef static
#undef extern
#undef inline
#define inline __inline
#undef inline
#define inline __inline__
#undef inline
#define inline inline__ // expected-warning {{keyword is hidden by macro definition}}
#undef inline
#define extern __inline // expected-warning {{keyword is hidden by macro definition}}
#undef extern
#define extern __extern // expected-warning {{keyword is hidden by macro definition}}
#undef extern
#define extern __extern__ // expected-warning {{keyword is hidden by macro definition}}
#undef extern
#define inline _inline // expected-warning {{keyword is hidden by macro definition}}
#undef inline
#define volatile // expected-warning {{keyword is hidden by macro definition}}
#undef volatile
#pragma clang diagnostic warning "-Wreserved-macro-identifier"
#define switch if // expected-warning {{keyword is hidden by macro definition}}
#define final 1
#define __clusplus // expected-warning {{macro name is a reserved identifier}}
#define __HAVE_X 0 // expected-warning {{macro name is a reserved identifier}}
#define _HAVE_X 0 // expected-warning {{macro name is a reserved identifier}}
#define X__Y
#undef switch
#undef final
#undef __cplusplus // expected-warning {{macro name is a reserved identifier}}
#undef _HAVE_X // expected-warning {{macro name is a reserved identifier}}
#undef X__Y
int x;
#define _GNU_SOURCE // no-warning
#define __STDC_FORMAT_MACROS // no-warning
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