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<!-- keywords: sqlite3_libversion sqlite3_libversion_number sqlite3_sourceid sqlite3_version -->
<div class=nosearch>
<a href="../c3ref/intro.html"><h2>SQLite C Interface</h2></a>
<h2>Run-Time Library Version Numbers</h2>
</div>
<blockquote><pre>
SQLITE_EXTERN const char sqlite3_version[];
const char *sqlite3_libversion(void);
const char *sqlite3_sourceid(void);
int sqlite3_libversion_number(void);
</pre></blockquote>
<p>
These interfaces provide the same information as the <a href="../c3ref/c_source_id.html">SQLITE_VERSION</a>,
<a href="../c3ref/c_source_id.html">SQLITE_VERSION_NUMBER</a>, and <a href="../c3ref/c_source_id.html">SQLITE_SOURCE_ID</a> C preprocessor macros
but are associated with the library instead of the header file. Cautious
programmers might include assert() statements in their application to
verify that values returned by these interfaces match the macros in
the header, and thus ensure that the application is
compiled with matching library and header files.</p>
<p><blockquote><pre>
assert( sqlite3_libversion_number()==SQLITE_VERSION_NUMBER );
assert( strncmp(sqlite3_sourceid(),SQLITE_SOURCE_ID,80)==0 );
assert( strcmp(sqlite3_libversion(),SQLITE_VERSION)==0 );
</pre></blockquote></p>
<p>The sqlite3_version[] string constant contains the text of <a href="../c3ref/c_source_id.html">SQLITE_VERSION</a>
macro. The sqlite3_libversion() function returns a pointer to the
to the sqlite3_version[] string constant. The sqlite3_libversion()
function is provided for use in DLLs since DLL users usually do not have
direct access to string constants within the DLL. The
sqlite3_libversion_number() function returns an integer equal to
<a href="../c3ref/c_source_id.html">SQLITE_VERSION_NUMBER</a>. The sqlite3_sourceid() function returns
a pointer to a string constant whose value is the same as the
<a href="../c3ref/c_source_id.html">SQLITE_SOURCE_ID</a> C preprocessor macro. Except if SQLite is built
using an edited copy of <a href="../amalgamation.html">the amalgamation</a>, then the last four characters
of the hash might be different from <a href="../c3ref/c_source_id.html">SQLITE_SOURCE_ID</a>.</p>
<p>See also: <a href="../lang_corefunc.html#sqlite_version">sqlite_version()</a> and <a href="../lang_corefunc.html#sqlite_source_id">sqlite_source_id()</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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