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%module wrapmacro
#ifdef SWIGLUA // lua only has one numeric type, so some overloads shadow each other creating warnings
%warnfilter(SWIGWARN_LANG_OVERLOAD_SHADOW) SWIGMACRO_maximum;
#endif
/* Testing technique for wrapping macros */
%{
#ifdef max
#undef max
#endif
%}
/* Here, some macros to wrap */
%inline %{
typedef unsigned short guint16;
#define GUINT16_SWAP_LE_BE_CONSTANT(val) ((guint16) ( \
(guint16) ((guint16) (val) >> 8) | \
(guint16) ((guint16) (val) << 8)))
/* Don't use max(), it's a builtin function for PHP. */
#define maximum(a,b) ((a) > (b) ? (a) : (b))
%}
/* Here, the auxiliary macro to wrap a macro */
%define %wrapmacro(type, name, lparams, lnames)
%rename(name) SWIGMACRO_##name;
%inline %{
type SWIGMACRO_##name(lparams) {
return name(lnames);
}
%}
%enddef
#define PLIST(...) __VA_ARGS__
/* Here, wrapping the macros */
%wrapmacro(guint16, GUINT16_SWAP_LE_BE_CONSTANT, guint16 val, val);
%wrapmacro(size_t, maximum, PLIST(size_t a, const size_t& b), PLIST(a, b));
%wrapmacro(double, maximum, PLIST(double a, double b), PLIST(a, b));
/* Maybe in the future, a swig directive will make this easier:
#define max(a,b) ((a) > (b) ? (a) : (b))
%wrapmacro double max(long a, double b); // target name is 'max'
%wrapmacro(max_i) int max(int a, int b); // changes target name to 'max_i'.
*/
%{
#ifdef max
#undef max
#endif
%}
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