https://sourceforge.net/p/typp/wiki/VarArgs/Recent changes to VarArgsenThu, 07 Jan 2016 11:30:19 -0000https://sourceforge.net/p/typp/wiki/VarArgs/<div class="markdown_content"><p><strong>VarArgs</strong></p> <p>Config: <code>#define TPP_CONFIG_HAVE___VA_ARGS__ 0/1</code><br/> Check: <code>#if __has_feature(tpp_va_args) || __has_extension(tpp_va_args)</code><br/> Function: <code>tpp.c: _TPPLexer_CreateExpandedMacroFunction</code></p> <p>Tpp allows macros to be defined with variadic arguments. See the syntax showcase below for detail.<br/> The <code>__VA_ARGS__</code> Identifier may not be used as parameter for functions</p> <p>Hint: As fallback for invalid macro function calls, tpp always considers every function as a variadic function, but will only utter a too many arguments warning, if the function isn't declared as variadic.</p> <div class="codehilite"><pre>#define v_args(func,...) func(__VA_ARGS__) // NOTE: The following line will not yield a warning // due to the relaxed argument rules of TPP (s.a. The page for Macros) v_args() // Expands to [(][)] v_args(foo) // Expands to [foo][(][)] v_args(foo,10) // Expands to [foo][(][10][)] v_args(foo,10,20) // Expands to [foo][(][10][,][20][)] </pre></div> <p>s.a. <span>[Macros]</span></p></div>CyderThu, 07 Jan 2016 11:30:19 -0000https://sourceforge.netca441fb00c498aa38db47b85c6e800557430e3d8