https://svn.boost.org/trac10/ticket/13596 <p> I'm using Microsoft Visual Studio 15.6.0 to compile boost 1.67.0. I use compiler flag /W4. The following warnings (which we declared an error for our project) occur in geometry: </p> <p> <strong>\boost_1_67_0\boost\geometry\algorithms\detail\overlay\sort_by_side.hpp(369): warning C4127: conditional expression is constant</strong> </p> <p> <strong>\boost_1_67_0\boost\geometry\algorithms\detail\overlay\handle_colocations.hpp(836): error C4127: conditional expression is constant</strong> </p> <p> <strong>\boost_1_67_0\boost\geometry\algorithms\detail\overlay\traversal.hpp(804): error C4127: conditional expression is constant</strong> </p> <p> <strong>\boost_1_67_0\boost\geometry\io\wkt\write.hpp(165): error C4127: conditional expression is constant</strong> </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/13596 Trac 1.4.3 Volker Schöch <vschoech@…> Wed, 13 Jun 2018 13:21:10 GMT https://svn.boost.org/trac10/ticket/13596#comment:1 https://svn.boost.org/trac10/ticket/13596#comment:1 <ul> <li><strong>keywords</strong> warning error C4127 added </li> </ul> Ticket Volker Schöch <vschoech@…> Wed, 13 Jun 2018 13:24:49 GMT https://svn.boost.org/trac10/ticket/13596#comment:3 https://svn.boost.org/trac10/ticket/13596#comment:3 <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">duplicate</span> </li> </ul> <p> Close as duplicate, now in <a class="ext-link" href="https://github.com/boostorg/geometry/issues/599"><span class="icon">​</span>https://github.com/boostorg/geometry/issues/599</a> </p> Ticket