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template

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  template bx <bxcvs@yahoo.com> - 2011-06-05 23:47 -0700
    Re: template ruben safir <ruben@mrbrklyn.com> - 2011-06-06 08:22 +0000
      Re: template bx <bxcvs@yahoo.com> - 2011-06-06 03:02 -0700
        Re: template ruben safir <ruben@mrbrklyn.com> - 2011-06-06 06:05 -0400
    Re: template "Bo Persson" <bop@gmb.dk> - 2011-06-06 12:17 +0200
      Re: template Michael <Michael@notspam.com> - 2011-06-06 18:21 +0200

#6260 — template

template<>
typename basic_trait<std::vector<float> >::Basic
DataRef<std::vector<float> >::operator[](std::size_t index) const;

Hi
with the above i get error:
using ‘typename’ outside of template
Any help? Also I don't understand typename.
Thanks

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#6265

On Sun, 05 Jun 2011 23:47:34 -0700, bx wrote:

> template<>
> typename basic_trait<std::vector<float> >::Basic
> DataRef<std::vector<float> >::operator[](std::size_t index) const;
> 
> Hi
> with the above i get error:
> using ‘typename’ outside of template Any help? Also I don't understand
> typename. Thanks

This is a VERY basic template question.  Where did you lift this from.  it looks like a specialization
of an existing genralized template...and yes typename (or class) has to be within the angle brackets.

Ruben

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#6273

sure most basic but what does that look like? I only get errors
whatever i try...

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#6274

On 06/06/2011 06:02 AM, bx wrote:
> sure most basic but what does that look like? I only get errors
> whatever i try...


Did you try reading about them before you did whatever your trying to 
do.  The question is so fundamental that one can't begin to answer it 
without writing a text book.

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#6276

bx wrote:
> template<>
> typename basic_trait<std::vector<float> >::Basic
> DataRef<std::vector<float> >::operator[](std::size_t index) const;
>
> Hi
> with the above i get error:
> using ‘typename’ outside of template
> Any help? Also I don't understand typename.
> Thanks

typename is currently only allowed when actually needed. As there are 
no template parameters in "basic_trait<std::vector<float> >::Basic", 
this is just an ordinary type, and typename is not needed.


In the upcoming C++11 these rules are somewhat relaxed.


Bo Persson
 

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#6298

Thanks...now much more to learn...

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