id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
2628	Sequence concept incorrectly fails for basic_string	Joel Lathrop <jal6806@…>	acharles	"The Sequence concept fails when tested against basic_string (e.g. BOOST_CONCEPT_ASSERT((Sequence<T>)); ) because an extra constructor test is included.  This test is for X a(n) where n is the size of the sequence to be created.  However, section 23.1.1 table 67 of the C++ standard does not include this test in the definition of the Sequence concept.  Because this test is in place, basic_string is rejected by the current implementation of the Sequence concept, since basic_string does not have this constructor.  However, section 21.3 paragraph 2 of the C++ standard states, ""The class template basic_string conforms to the requirements of a Sequence, as specified in (23.1.1).""

The fix for this should be as simple as removing the test for a constructor of the form X a(n) in the Sequence concept implementation."	Bugs	assigned	Boost 1.56.0	concept_check	Boost 1.37.0	Problem		concept_check Sequence basic_string