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simulation-package / toolchain /cmake-3.27.9-linux-x86_64 /doc /cmake /html /variable /CACHE.html
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<span id="variable:CACHE"></span><h1>CACHE<a class="headerlink" href="#cache" title="Permalink to this heading"></a></h1>
<div class="versionadded">
<p><span class="versionmodified added">New in version 3.13.</span></p>
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<p>Operator to read cache variables.</p>
<p>Use the syntax <code class="docutils literal notranslate"><span class="pre">$CACHE{VAR}</span></code> to read cache entry <code class="docutils literal notranslate"><span class="pre">VAR</span></code>.
See the <a class="reference internal" href="../manual/cmake-language.7.html#cmake-language-variables"><span class="std std-ref">cmake-language(7) variables</span></a>
documentation for more complete documentation of the interaction of
normal variables and cache entries.</p>
<p>When evaluating <a class="reference internal" href="../manual/cmake-language.7.html#variable-references"><span class="std std-ref">Variable References</span></a> of the form <code class="docutils literal notranslate"><span class="pre">${VAR}</span></code>,
CMake first searches for a normal variable with that name, and if not
found CMake will search for a cache entry with that name.
The <code class="docutils literal notranslate"><span class="pre">$CACHE{VAR}</span></code> syntax can be used to do direct cache lookup and
ignore any existing normal variable.</p>
<p>See the <span class="target" id="index-0-command:set"></span><a class="reference internal" href="../command/set.html#command:set" title="set"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">set()</span></code></a> and <span class="target" id="index-0-command:unset"></span><a class="reference internal" href="../command/unset.html#command:unset" title="unset"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">unset()</span></code></a> commands to see how to
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