llvm-for-llvmta/tools/clang/test/Preprocessor/pragma_poison.c

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2022-04-25 13:02:35 +02:00
// RUN: %clang_cc1 %s -Eonly -verify
#pragma GCC poison rindex
rindex(some_string, 'h'); // expected-error {{attempt to use a poisoned identifier}}
#define BAR _Pragma ("GCC poison XYZW") XYZW /*NO ERROR*/
XYZW // ok
BAR
XYZW // expected-error {{attempt to use a poisoned identifier}}
// Pragma poison shouldn't warn from macro expansions defined before the token
// is poisoned.
#define strrchr rindex2
#pragma GCC poison rindex2
// Can poison multiple times.
#pragma GCC poison rindex2
strrchr(some_string, 'h'); // ok.