From:	buers AT gmx DOT de (Dieter Buerssner)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: C++, complex, etc
Date:	23 May 2000 17:57:25 GMT
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Martin Stromberg wrote:

>So we should change ptrdiff_t to "signed long long int"?

I think, this wouldn't work. If you have

  ptrdiff_t pd;
  char *p1, *p2;
  ... 
  pd = p2 - p1;

The subtraction will be done in 32 bit arithmetic, which will incorrectly
wrap, when the difference is >= 2^31. This is a catch 22.

-- 
Regards, Dieter Buerssner
  
  

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