Jan Dvorak
1/22/2008 4:24:00 PM
On Monday 21 January 2008 19:58:44 Adam Bender wrote:
> I have a C++ library that I'm trying to access in Ruby. One of the C++
> functions returns a char* and I would like this to be converted to an Array
> (since the char* may have 0x00 in it, which terminate a Ruby string
> prematurely). I'm trying to write a typemap for the conversion, but I'm
> getting stuck on determining the length of the array -- I can't pass that
> as a parameter, since this is an *out* typemap. So my question is, does
> anyone have a way to convert char* to Array in Swig, hopefully with an
> example? Thanks!
Ruby strings are not null-terminated, so they may contain 0x00 as well as any
other char. Of course when converting from C char* you have to specify the
length:
VALUE rubystring;
char str[] = {'a','b',0x00,'c'};
rubystring = rb_str_new(str,4);
Jan