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