Re: Could we use T:X to abbreviate "typename T::X"? (and get cleaner code)

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From	Walter Mascarenhas<walter.mascarenhas@googlemail.com>
Newsgroups	comp.std.c++
Subject	Re: Could we use T:X to abbreviate "typename T::X"? (and get cleaner code)
Date	Thu, 24 Jan 2013 15:15:38 -0800 (PST)
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On Tuesday, January 22, 2013 9:26:32 PM UTC-2, Daniel Krügler wrote:
>  Am 22.01.2013 17:54, schrieb Walter Mascarenhas:
>
>
>  >  When I use constructs like std::enable_if my code gets polluted with many typenames, as in
>  >  typename std::enable_if<   std::is_same<typename A::X, typename B::Y>::value,
>  >                            typename C::Z>::type
>

>  >  Would it be too costly to introduce a symbol, say ':', in the language so
>  >  that "T:X" is an abbreviation for "typename T::X"?
>
>
>  An alternative solution without need of any further language
>  extensions is the usage of a template alias instead. Typical examples
>  are:
>
>  template<bool C, class T = void>
>  using EnableIf = typename std::enable_if<C, T>::type;
>
>
>  HTH&  Greetings from Bremen,
>
>
>
>  Daniel Krügler
>


Thanks for the reply. This is indeed a
good alternative for people with good
compilers.

Unfortunately I am stuck with Visual C++
and won't be able to apply this solution
for a while. Of course microsoft is the
one to blame here and people in this
list shouldn't worry about this question.

Greetings from Brazil,

         walter.




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Thread

Could we use T:X to abbreviate "typename T::X"? (and get cleaner code) Walter Mascarenhas<walter.mascarenhas@googlemail.com> - 2013-01-22 10:54 -0600
  Re: Could we use T:X to abbreviate "typename T::X"? (and get cleaner code) Daniel Krügler <daniel.kruegler@googlemail.com> - 2013-01-22 15:26 -0800
    Re: Could we use T:X to abbreviate "typename T::X"? (and get cleaner code) Walter Mascarenhas<walter.mascarenhas@googlemail.com> - 2013-01-24 15:15 -0800
    Re: Could we use T:X to abbreviate "typename T::X"? (and get cleaner code) SG<s.gesemann@googlemail.com> - 2013-02-27 09:05 -0800
      Re: Could we use T:X to abbreviate "typename T::X"? (and get cleaner code) Daniel Krügler <daniel.kruegler@googlemail.com> - 2013-02-27 10:52 -0800

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