https://svn.boost.org/trac10/ticket/2628 <p> The Sequence concept fails when tested against basic_string (e.g. BOOST_CONCEPT_ASSERT((Sequence&lt;T&gt;)); ) 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)." </p> <p> 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. </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/2628 Trac 1.4.3 acharles Tue, 18 Feb 2014 12:49:53 GMT https://svn.boost.org/trac10/ticket/2628#comment:1 https://svn.boost.org/trac10/ticket/2628#comment:1 <ul> <li><strong>owner</strong> changed from <span class="trac-author">jsiek</span> to <span class="trac-author">acharles</span> </li> <li><strong>status</strong> <span class="trac-field-old">new</span> → <span class="trac-field-new">assigned</span> </li> </ul> Ticket acharles Wed, 19 Feb 2014 06:34:47 GMT https://svn.boost.org/trac10/ticket/2628#comment:3 https://svn.boost.org/trac10/ticket/2628#comment:3 <ul> <li><strong>milestone</strong> <span class="trac-field-old">Boost 1.38.0</span> → <span class="trac-field-new">Boost 1.56.0</span> </li> </ul> Ticket