Re: Can not deduse template arguments std::rel_ops

From:

Victor Bazarov <v.Abazarov@comAcast.net>

Newsgroups:

microsoft.public.vc.language

Date:

Tue, 12 Jan 2010 11:49:23 -0500

Message-ID:

<hii95o$3f6$1@news.datemas.de>

Vladimir Grigoriev wrote:

Another question.

When I include std::rel_ops before the main() my code compiles.

How do you "include" it? It's not like it's a header...

> When I

include the operators inside the main the compiler issues errors. May I use

using std::rel_ops::operator !=;

using std::rel_ops::operator >;

using std::rel_ops::operator <=;

using std::rel_ops::operator >=;

statements inside a code block such a way that the compiler could deduce
template arguments?

Are those by any chance templates?

Vladimir Grigoriev

c:\program files\microsoft visual studio 8\vc\include\functional(165) :
error C2784: 'bool std::operator <=(const std::reverse_iterator<_RanIt>
&,const std::reverse_iterator<_RanIt2> &)' : could not deduce template
argument for 'const std::reverse_iterator<_RanIt> &' from 'const element'
        c:\program files\microsoft visual studio 8\vc\include\xutility(1858)
: see declaration of 'std::operator <='
        c:\program files\microsoft visual studio
8\vc\include\functional(164) : while compiling class template member
function 'bool std::less_equal<_Ty>::operator ()(const _Ty &,const _Ty &)
const'
        with
        [
            _Ty=element
        ]

And where is the code? Are we to divine it or read your mind (or,
better yet, the mind of your computer)? Please post the code when
asking a question about the code and the errors you get from compiling it.

V
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