https://svn.boost.org/trac10/ticket/12691 <p> there is a special character included in /boost/format/alt_sstream_impl.hpp line 176. (based on 1.62) </p> <p> follow is what the code is seen from my environment </p> <blockquote> <p> BOOST_ASSERT(0); <em> �27.4.3.2 allows undefined-behaviour here </em></p> </blockquote> <p> VS compiler hates this and pops up warning C4819. </p> <p> please remove remark text or make it clean. </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/12691 Trac 1.4.3 Kohei Takahashi Thu, 15 Dec 2016 07:23:43 GMT https://svn.boost.org/trac10/ticket/12691#comment:1 https://svn.boost.org/trac10/ticket/12691#comment:1 <ul> <li><strong>owner</strong> set to <span class="trac-author">Samuel Krempp</span> </li> <li><strong>component</strong> <span class="trac-field-old">Building Boost</span> → <span class="trac-field-new">format</span> </li> </ul> Ticket James E. King, III Wed, 11 Oct 2017 03:57:56 GMT https://svn.boost.org/trac10/ticket/12691#comment:2 https://svn.boost.org/trac10/ticket/12691#comment:2 <ul> <li><strong>status</strong> <span class="trac-field-old">new</span> → <span class="trac-field-new">closed</span> </li> <li><strong>resolution</strong> → <span class="trac-field-new">fixed</span> </li> <li><strong>severity</strong> <span class="trac-field-old">Problem</span> → <span class="trac-field-new">Cosmetic</span> </li> <li><strong>milestone</strong> <span class="trac-field-old">To Be Determined</span> → <span class="trac-field-new">Boost 1.63.0</span> </li> </ul> <p> This was resolved in 1.63.0. See: <a class="ext-link" href="https://github.com/boostorg/format/commit/045c6f15b9f6ef654642906f458d26b584b0b4c9#diff-197b60c8ff0ee0049623b52851aa7e0d"><span class="icon">​</span>https://github.com/boostorg/format/commit/045c6f15b9f6ef654642906f458d26b584b0b4c9#diff-197b60c8ff0ee0049623b52851aa7e0d</a> </p> Ticket