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<a href="../c3ref/intro.html"><h2>SQLite C Interface</h2></a>
<h2>Attempt To Free Heap Memory</h2>
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<blockquote><pre>
int sqlite3_release_memory(int);
</pre></blockquote>
<p>
The sqlite3_release_memory() interface attempts to free N bytes
of heap memory by deallocating non-essential memory allocations
held by the database library. Memory used to cache database
pages to improve performance is an example of non-essential memory.
sqlite3_release_memory() returns the number of bytes actually freed,
which might be more or less than the amount requested.
The sqlite3_release_memory() routine is a no-op returning zero
if SQLite is not compiled with <a href="../compile.html#enable_memory_management">SQLITE_ENABLE_MEMORY_MANAGEMENT</a>.</p>
<p>See also: <a href="../c3ref/db_release_memory.html">sqlite3_db_release_memory()</a>
</p><p>See also lists of
<a href="../c3ref/objlist.html">Objects</a>,
<a href="../c3ref/constlist.html">Constants</a>, and
<a href="../c3ref/funclist.html">Functions</a>.</p>
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