Re: [Swig-user] #define S_LEN sizeof(LEN)

[David P. <dpi...@me...>]

> -----Original Message-----
> From: glpk xypron [mailto:xyp...@gm...]
> Sent: Wednesday, April 18, 2012 12:08 AM
> To: swi...@li...
> Subject: [Swig-user] #define S_LEN sizeof(LEN)
> 
> Dear all,
> 
> primitive definitions like
> 
> #define S_LEN 0x1
> 
> are mapped to constants in Java classes by SWIG.
> 
> Nonprimitive definitions like
> 
> #define S_LEN sizeof(LEN)
> #define S_X offset(LEN, x)
> 
> are not mapped.
> 
> Is there a way to map nonprimitive definitions, e.g. using typemaps?

Well, "static const int S_LEN = sizeof(LEN)" is mapped to a property. And "enum { S_LEN = sizeof(LEN) };" is mapped to a pseudo-constant when I use C# as the target (public static readonly int).

I don't think SWIG can evaluate sizeof(), so you can't get a "real" constant; a C++ call is required to get the value. (But in C# at least, SWIG seems to use C++ calls for everything except named enums anyway.)