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Re: [v3 patch] Implement N3421 - make functors greater<>


On 1 November 2013 11:28, Marc Glisse wrote:
> On Fri, 1 Nov 2013, Jonathan Wakely wrote:
>
>> 2013-11-01  Jonathan Wakely  <jwakely.gcc@gmail.com>
>>
>>        N3421 C++1y Transparent functors
>>        * include/bits/stl_function.h (plus<void>, minus<void>,
>>        multiplies<void>, divides<void>, modulus<void>, negate<void>,
>>        equal_to<void>, not_equal_to<void>, greater<void>, less<void>,
>>        greater_equal<void>, less_equal<void>, logical_and<void>,
>>        logical_or<void>, logical_not<void>, bit_and<void>, bit_or<void>,
>>        bit_xor<void>, bit_not<void>): Define.
>
>
> Thanks. Why use noexcept for everything except logical_not?

Oops, because the regex I used to add noexcept only matched a
trailing-return-type on a line by itself, and I missed that one. I'll
fix it now, thanks!


> I noticed recently that the following worked, it will be convenient now we
> have those functors (for my own code, not the STL):
>
> template<typename RandomAccessIterator, typename Compare = std::less<void>>
> void sort(RandomAccessIterator first, RandomAccessIterator last,
>           Compare comp = {});

Nice :)


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