Jonathan Wakely a31517cb9a libstdc++: Implement LWG 3149 for std::default_constructible
The change approved in Belfast did not actually rename the concept from
std::default_constructible to std::default_initializable, even though
that was intended. That is expected to be done soon as a separate issue,
so I'm implementing that now too.

	* include/bits/iterator_concepts.h (weakly_incrementable): Adjust.
	* include/std/concepts (default_constructible): Rename to
	default_initializable and require default-list-initialization and
	default-initialization to be valid (LWG 3149).
	(semiregular): Adjust to new name.
	* testsuite/std/concepts/concepts.lang/concept.defaultconstructible/
	1.cc: Rename directory to concept.defaultinitializable and adjust to
	new name.
	* testsuite/std/concepts/concepts.lang/concept.defaultinitializable/
	lwg3149.cc: New test.
	* testsuite/util/testsuite_iterators.h (test_range): Adjust.

From-SVN: r278314
2019-11-15 19:58:27 +00:00
2019-11-15 19:47:12 +00:00
2019-11-13 12:38:04 +00:00
2019-01-01 13:31:55 +01:00
2019-11-15 19:47:12 +00:00
2019-09-09 11:14:32 +02:00
2019-11-11 17:59:48 +02:00
2019-06-15 21:32:03 +00:00

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