[boost] Re: ptr<> renamed to placed_ptr<>

From: Philippe A. Bouchard (philippeb_at_[hidden])
Date: 2002-08-29 20:45:24

Greg Colvin wrote:

> The compiler on my machine emits a function call for dynamic_cast to
> void*, plus whatever that function does, which seems a lot of overhead
> compared to the two masks and two memory references than an implemention
> based on size- segregated allocation would require.
> 
> Perhaps the compilers you have tested do a better job?

Reading specs from /usr/lib/gcc-lib/i386-linux/2.95.4/specs
gcc version 2.95.4 20011006 (Debian prerelease)

Compiled with: 'g++ -O2 -lrt' under Intel 1.4 GHz.

>>http://groups.yahoo.com/group/boost/files/ptr/ (placed_ptr*);
>>
>>There is no reason to debate this anymore (it's like saying F != ma).
> 
> Well, it isn't, as was known nearly a century ago, but it's close enough.

If placed_ptr<> is not approaching light speed, it'll be ok.

-- 
Philippe A. Bouchard