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Remove usage of __builtin_constant_p under IBM XL

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Andrew Gaspar 2020-04-09 17:52:33 -06:00 committed by Martin Hořeňovský
parent 87c8055176
commit ca27b0dcc5
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1 changed files with 13 additions and 0 deletions
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src/catch2/internal/catch_compiler_capabilities.hpp
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@ -66,7 +66,20 @@
# define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma( "clang diagnostic push" ) # define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma( "clang diagnostic push" )
# define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION _Pragma( "clang diagnostic pop" ) # define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION _Pragma( "clang diagnostic pop" )
// As of this writing, IBM XL's implementation of __builtin_constant_p has a bug
// which results in calls to destructors being emitted for each temporary,
// without a matching initialization. In practice, this can result in something
// like `std::string::~string` being called on an uninitialized value.
//
// For example, this code will likely segfault under IBM XL:
// ```
// REQUIRE(std::string("12") + "34" == "1234")
// ```
//
// Therefore, `CATCH_INTERNAL_IGNORE_BUT_WARN` is not implemented.
# if !defined(__ibmxl__)
# define CATCH_INTERNAL_IGNORE_BUT_WARN(...) (void)__builtin_constant_p(__VA_ARGS__) /* NOLINT(cppcoreguidelines-pro-type-vararg) */ # define CATCH_INTERNAL_IGNORE_BUT_WARN(...) (void)__builtin_constant_p(__VA_ARGS__) /* NOLINT(cppcoreguidelines-pro-type-vararg) */
# endif
# define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \ # define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \