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Robert Hollencamp wrote:
> I made an example of using Flex and Bison together in C++ and was
> wondering if you guys could provide some feedback. Despite the C++
> interface being 'experimental' I found it works out pretty good
> after you figure it out.
>
> http://www.thewaffleshop.net/2010/03/06/flex-bison-cpp-example/
Hey
Well as far as i can tell, '#pragma once' isn't portable, you should
use inclusion guards for the sake of a little bit of the
c-preprocessor to keep things portable. And really isn't this
syntactic sugar for simply calling yyparse() ? Plus you haven't really
given a way to set the input for the lexer to read. Just usually if
your going down the fully abstracted approach you need the necessary
get/set's to give control to the user so to avoid touching the
implementation code as much as possible.
Though then again i haven't used bison in C++ mode, i wonder can't you
simply use:
- ----
#ifdef __cplusplus
extern "C" {
#endif
<code>
#ifdef __cplusplus
}
#endif
- ----
Though sometimes that can make things messy but it works well for
writing api's that are callable from C++.
- --Phil
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