Re: Bison/flex compatibility revisited

[John]

> > Any code that explicitly references YY_G is broken. YY_G is an
> > internal macro, and subject to change.
>
> But with a reentrant lexical analyzer, yyout is defined as
> #define yyout YY_G(yyout_r)
> which obviously isn't going to work if there's no definition
> of YY_G and/or nothing in which yyout_r is a member.
> Any code using yyout therefore needs YY_G;

That's what the function yyget_out() is for. See the section titled,
"Functions and Macros Available in Reentrant C Scanners", in the flex
manual.