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Subject: Re: [Boost-users] boost.container.vector::operator==() bug?
From: niXman (i.nixman_at_[hidden])
Date: 2014-11-09 17:19:22


Ion Gaztañaga 2014-11-10 00:44:
> I don't think using std::equal will guarantees the use of memcmp. At
> least, the last time I checked some major implementations didn't use
> it and others only for char types. I've seen libstdc++ uses memcmp for
> non-char types, maybe that could be a good example to follow.

Hmm..
std::equal()[1] uses __equal_aux()[2], which uses '__builtin_memcmp()'
for:
https://gcc.gnu.org/viewcvs/gcc/trunk/libstdc%2B%2B-v3/include/bits/stl_algobase.h?view=markup#l832

[1]
https://gcc.gnu.org/viewcvs/gcc/trunk/libstdc%2B%2B-v3/include/bits/stl_algobase.h?view=markup#l1047
[2]
https://gcc.gnu.org/viewcvs/gcc/trunk/libstdc%2B%2B-v3/include/bits/stl_algobase.h?view=markup#l828

-- 
Regards, niXman
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