libstdc++-v3/include/std/any · 9f1cd51766f251aafe0f1b898892f79855892729 · COBOLworx / gcc-cobol

9 months ago

libstdc++: Make std::any_cast<void> ill-formed (LWG 3305) · 466ee78e

Jonathan Wakely authored 9 months ago

LWG 3305 was approved earlier this year in Tokyo. We need to give an
error if using std::any_cast<void>, but std::any_cast<void()> is valid
(but always returns null).

libstdc++-v3/ChangeLog:

	* include/std/any (any_cast(any*), any_cast(const any*)): Add
	static assertion to reject void types, as per LWG 3305.
	* testsuite/20_util/any/misc/lwg3305.cc: New test.

466ee78e

History

libstdc++: Make std::any_cast<void> ill-formed (LWG 3305)

Jonathan Wakely authored 9 months ago

LWG 3305 was approved earlier this year in Tokyo. We need to give an
error if using std::any_cast<void>, but std::any_cast<void()> is valid
(but always returns null).

libstdc++-v3/ChangeLog:

	* include/std/any (any_cast(any*), any_cast(const any*)): Add
	static assertion to reject void types, as per LWG 3305.
	* testsuite/20_util/any/misc/lwg3305.cc: New test.