How ANSI can we assume C?

How ANSI can we assume C?

[Andrey Borzenkov]

As long as widechar support remains conditional, defining wide/non-wide 
versions really becomes nightmare.

Specifically I'd like simply use

#define ZWC(c) L ## c (or even L ## 'c')

and use it everyhere. It is much easier to use than inventing obscure names 
for characters.

-andrey

Re: How ANSI can we assume C?

[Andrey Borzenkov]

On Wednesday 23 February 2005 12:23, Andrey Borzenkov wrote:
> As long as widechar support remains conditional, defining wide/non-wide
> versions really becomes nightmare.
>
> Specifically I'd like simply use
>
> #define ZWC(c) L ## c (or even L ## 'c')
                        ^^^^^^^^^^^^^^^^^ nope, bad idea
>
> and use it everyhere. It is much easier to use than inventing obscure names
> for characters.
>

And it also allows wide strings in place which is fast impossible otherwise 
without tons of ifdef

Re: How ANSI can we assume C?

[Peter Stephenson]

Andrey Borzenkov wrote:
> On Wednesday 23 February 2005 12:23, Andrey Borzenkov wrote:
> > As long as widechar support remains conditional, defining wide/non-wide
> > versions really becomes nightmare.
> >
> > Specifically I'd like simply use
> >
> > #define ZWC(c) L ## c (or even L ## 'c')
>                         ^^^^^^^^^^^^^^^^^ nope, bad idea
> >
> > and use it everyhere. It is much easier to use than inventing obscure names
> > for characters.
> >
> 
> And it also allows wide strings in place which is fast impossible otherwise 
> without tons of ifdef

The code is already full of "const"s.  I suspect we can probably get
away with this.  I hope the last K&R compiler has now died...

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR PLC, Churchill House, Cambridge Business Park, Cowley Road
Cambridge, CB4 0WZ, UK                          Tel: +44 (0)1223 692070


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Re: How ANSI can we assume C?

[Peter Stephenson]

Andrey Borzenkov wrote:
> #define ZWC(c) L ## c

A further thought is that we only need this feature when
ZLE_UNICODE_SUPPORT is defined.  For older compilers we don't need to
paste tokens:

#ifdef ZLE_UNICODE_SUPPORT
#define ZWC(c) L ## c
#else
#define ZWC(c)	c
#endif

I think that's unobjectionable.  It's very hard if not impossible to
imagine a system with multibyte and wide character support using a K&R
compiler.

I'll change this in the patch I'm doing.

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR PLC, Churchill House, Cambridge Business Park, Cowley Road
Cambridge, CB4 0WZ, UK                          Tel: +44 (0)1223 692070


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