Re: Introduce a C Compiler ucc

On May 11, 9:35 am, vipps...@[EMAIL PROTECTED]
 wrote:
> On May 11, 4:15 am, dreamAnders <dream_and...@[EMAIL PROTECTED]
> wrote:
>
> > ucc is an ANSI C Compiler. Its code size is about 15,000 lines.
> > The lexer, parser and code generator are all hand-written.
> > The code structure is very clear and straightforward. And there is an
> > interesting value numbering algorithm.
> > It also has a do***ent explaining the internal implementation.
> > If you are interested at this compiler, you can download it
fromhttp://sourceforge.net/projects/ucc,
which will help you to master the
> > C language.
>
> Your implementation of assert in ucc/ucl/linux/include/assert.h is not
> ANSI C, (or ISO C) as it evaluates it's parameter more than once if
> NDEBUG is not defined.
> Example: assert(printf("hello world\n")); would call print twice.
>
> I suggest you rewrite _assert (and also rename to _Assert) to return
> void, and make the check twice there.

No, It will not evaluate its parameter more than once.

#define assert(e) ((void)((e)||_assert(#e, __FILE__, __LINE__)))

please notice that the second e's appearance, it is '#e'