 library is highly portable and relies only on a small set of C++11 features:</p>
<ul class="simple">
<li>variadic templates</li>
<li>type traits</li>
<li>rvalue references</li>
<li>decltype</li>
<li>trailing return types</li>
<li>deleted functions</li>
<li>alias templates</li>
</ul>
<p>These are available since GCC 4.8, Clang 3.0 and MSVC 19.0 (2015). For older
compilers use {fmt} <a class="reference external" href="https://github.com/fmtlib/fmt/releases/tag/4.1.0">version 4.x</a> which continues to be
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