Re: Re[2]: bison %union and C++

[Akim Demaille]

>>>>> "Oleg" == Oleg Smolsky <address@hidden> writes:

Oleg> Hello Akim, Akim Demaille wrote on Wednesday, September 25,
Oleg> 2002: So, is there any way to get bison to store one of my
Oleg> objects on its stack?
AD> Using pointers to string. Or make sure to have a single hierarchy,
AD> which means that you must wrap std::string :(
Oleg> yeah, but every time bison removed something from the stack I
Oleg> get a memory leak. (which I have worked around by keeping track
Oleg> of what bison allocs and frees, but it's quite nasty)

If you are ready to use a beta (and it will certainly change in the
future, so *this is a bad idea*), you can try this:

%destructor { delete $$; } expr stmt etc...
%destructor { free ($$); } C_STRING