https://svn.boost.org/trac10/ticket/12572 <p> <a class="ext-link" href="https://github.com/boostorg/locale/blob/develop/src/util/locale_data.cpp#L60"><span class="icon">​</span>https://github.com/boostorg/locale/blob/develop/src/util/locale_data.cpp#L60</a> </p> <blockquote> <p> if('a' &lt;= tmp[i] &amp;&amp; tmp[i]&lt;='a') </p> <blockquote> <p> tmp[i]=tmp[i]-'a'+'A'; </p> </blockquote> </blockquote> <p> should be </p> <blockquote> <p> if('a' &lt;= tmp[i] &amp;&amp; tmp[i]&lt;='z') </p> </blockquote> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/12572 Trac 1.4.3 Artyom Beilis Thu, 13 Jul 2017 14:19:35 GMT https://svn.boost.org/trac10/ticket/12572#comment:1 https://svn.boost.org/trac10/ticket/12572#comment:1 <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> </ul> <p> Thanks fixed in dev </p> Ticket