<table><tr><td style="">kossebau added a comment.
</td><a style="text-decoration: none; padding: 4px 8px; margin: 0 8px 8px; float: right; color: #464C5C; font-weight: bold; border-radius: 3px; background-color: #F7F7F9; background-image: linear-gradient(to bottom,#fff,#f1f0f1); display: inline-block; border: 1px solid rgba(71,87,120,.2);" href="https://phabricator.kde.org/D13800">View Revision</a></tr></table><br /><div><div><p>Some context from Olivier:<br />
[15:06] <frinring> isn't QT_USE_FAST_CONCATENATION no more a thing since late 4.8, and in qt5 only QT_USE_FAST_OPERATOR_PLUS is still considered?<br />
[15:12] <frinring> and QT_USE_QSTRINGBUILDER is a superset of QT_USE_FAST_OPERATOR_PLUS, so with the initial the latter is not needed, or?<br />
[15:13] <frinring> ogoffart: hi. can you confirm that^ ?<br />
[16:52] <ogoffart> frinring: yes, QT_USE_QSTRINGBUILDER is the new name<br />
[16:55] <frinring> ogoffart: not just the new name, but also covers qbytearray, right? so QT_USE_FAST_CONCATENATION is defunc in qt5, QT_USE_FAST_OPERATOR_PLUS undocumented but still covering qstring, and QT_USE_QSTRINGBUILDER the documented thing, which covers both qstring & qbytearray<br />
[16:55] <frinring> so dropping QT_USE_FAST_CONCATENATION from code is dead code clean up, replacing QT_USE_FAST_OPERATOR_PLUS with QT_USE_QSTRINGBUILDER needs some check first, right?<br />
[16:57] <ogoffart> yes, right</p>
<p>And related old blog post: <a href="http://blog.qt.io/blog/2011/06/13/string-concatenation-with-qstringbuilder/" class="remarkup-link" target="_blank" rel="noreferrer">http://blog.qt.io/blog/2011/06/13/string-concatenation-with-qstringbuilder/</a></p></div></div><br /><div><strong>REPOSITORY</strong><div><div>R240 Extra CMake Modules</div></div></div><br /><div><strong>REVISION DETAIL</strong><div><a href="https://phabricator.kde.org/D13800">https://phabricator.kde.org/D13800</a></div></div><br /><div><strong>To: </strong>kossebau<br /><strong>Cc: </strong>kde-frameworks-devel, kde-buildsystem, michaelh, ngraham, bruns<br /></div>