Subject: Re: [boost] Failures for GCC 4.4.1 with gnu++0x
From: Peter Dimov (pdimov_at_[hidden])
Date: 2009-09-06 09:46:04
Bo Persson wrote:
> Steven Watanabe wrote:
>> Beman Dawes wrote:
>>> I missed iostreams. The problem seems to be a bug in gcc. This
>>> program: #include <utility>
>>> int main()
>>> std::pair<int, int*> x(0,0);
>>> return 0;
>>> compiles without -std=gnu++0x, but with -std=gnu++0x gets an error:
>>> In constr
>>> uctor 'std::pair<_T1, _T2>::pair(_U1&&, _U2&&) [with _U1 = int,
>>> _U2 = int, _T1 = int, _T2 = int*]':
>>> cvt-0-to-ptr.cpp:5: instantiated from here
>>> invalid conversion from 'int' to 'int*'
>>> I tried to find this in gcc bugzilla, but didn't come up with
>>> anything. Is anyone else have any knowledge of this problem?
>> This is a result of the addition of a templated constructor for
>> std::pair in C++0x. gcc seems to be behaving correctly.
> Yes, but that constructor is (was!) supposed to be constrained by a
> Constructible concept. The compiler correctly points out that the
> parameter fails that concept.
> Interesting! .-)
is one of those solved by concepts that are now back.
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