nanogui@linuxhacker.org

Greg Haerr wrote:

> : Is this replacement something that could be rolled into the
> : general release in order to make Microwindows more portable
> : to new platforms?
> 
> Send me the changes.  I suppose we should include 
> malloc/free instead of alloca, since too few systems 
> implement it.  However, alloca is way faster than malloc,
> so I'll look at how it's used and perhaps save this for
> the day Microwindows has a ./configure setup.

Agreed.  What would you think about macro-izing this?
Say:

#ifdef USE_ALLOCA
#define  ALLOCA(size)   alloca(size)
#define  FREEA(pmem)
#else /* no alloca(), so use malloc()/free() instead */
#define  ALLOCA(size)   malloc(size)
#define  FREEA(pmem) free(pmem)
#endif

Then always use ALLOCA() & FREEA() properly so that
malloc()/free() works.  But if there is an alloca()
available, define USE_ALLOCA and all is faster! :-)

BAT
-- 
Brent A. Thompson, Next Level Communications <www.nlc.com>
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