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Add support for -fno-exceptions (or equivalent)

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This means

* Adding new configuration toggle `CATCH_CONFIG_DISABLE_EXCEPTIONS`
and a best-guess configuration auto-checking for it.
* Adding new set of internal macros, `CATCH_TRY`, `CATCH_CATCH_ALL`
and `CATCH_CATCH_ANON` that can be used in place of regular `try`,
`catch(...)` and `catch(T const&)` respectively, while disappearing
when `CATCH_CONFIG_DISABLE_EXCEPTIONS` is enabled.
* Replacing all uses of `throw` with calls to `Catch::throw_exception`
customization point.
* Providing a default implementation for the above customization point
when `CATCH_CONFIG_DISABLE_EXCEPTIONS` is set.
* Letting users override this implementation with their own.
* Some minor changes and ifdefs all around to support the above
This commit is contained in:
Martin Hořeňovský
2018-09-03 17:52:48 +02:00
parent 86da2846af
commit 8b01883854
12 changed files with 102 additions and 23 deletions
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22
include/internal/catch_enforce.h
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@@ -8,19 +8,35 @@
#define TWOBLUECUBES_CATCH_ENFORCE_H_INCLUDED
#include "catch_common.h"
#include "catch_compiler_capabilities.h"
#include "catch_stream.h"
#include <stdexcept>
namespace Catch {
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
template <typename Ex>
[[noreturn]]
void throw_exception(Ex const& e) {
throw e;
}
#else // ^^ Exceptions are enabled // Exceptions are disabled vv
[[noreturn]]
void throw_exception(std::exception const& e);
#endif
} // namespace Catch;
#define CATCH_PREPARE_EXCEPTION( type, msg ) \
type( ( Catch::ReusableStringStream() << msg ).str() )
#define CATCH_INTERNAL_ERROR( msg ) \
throw CATCH_PREPARE_EXCEPTION( std::logic_error, CATCH_INTERNAL_LINEINFO << ": Internal Catch error: " << msg);
Catch::throw_exception(CATCH_PREPARE_EXCEPTION( std::logic_error, CATCH_INTERNAL_LINEINFO << ": Internal Catch error: " << msg))
#define CATCH_ERROR( msg ) \
throw CATCH_PREPARE_EXCEPTION( std::domain_error, msg )
Catch::throw_exception(CATCH_PREPARE_EXCEPTION( std::domain_error, msg ))
#define CATCH_RUNTIME_ERROR( msg ) \
throw CATCH_PREPARE_EXCEPTION( std::runtime_error, msg )
Catch::throw_exception(CATCH_PREPARE_EXCEPTION( std::runtime_error, msg ))
#define CATCH_ENFORCE( condition, msg ) \
do{ if( !(condition) ) CATCH_ERROR( msg ); } while(false)
#endif // TWOBLUECUBES_CATCH_ENFORCE_H_INCLUDED