POV-Ray : Newsgroups : povray.off-topic : 99 lines of C++ for an unbiased ray tracer : Re: 99 lines of C++ for an unbiased ray tracer Server Time
5 Sep 2024 01:19:59 EDT (-0400)
  Re: 99 lines of C++ for an unbiased ray tracer  
From: Warp
Date: 14 Jan 2010 17:05:11
Message: <4b4f9516@news.povray.org>
Orchid XP v8 <voi### [at] devnull> wrote:
> >>>   Since sizeof() of an array returns the total amount of bytes taken by
> >>> an array, if you divide it by the amount of bytes of one element, you get
> >>> the total number of elements.
> > 
> >> This is plain. What surprises me is that sizeof() can give you an 
> >> accurate size in the first place.
> > 
> >   Why wouldn't it? The compiler has to know the size of the array if it
> > wants to allocate it in memory.

> All that stuff about "C does not know the size of an array at run-time, 
> and does not check array bounds".

  That talks about dynamically allocated arrays, not statically allocated
ones. They are different.

-- 
                                                          - Warp


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