Re: Half templates does not work.

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From	Ian Collins <ian-news@hotmail.com>
Newsgroups	comp.lang.c++
Subject	Re: Half templates does not work.
Date	Sat, 01 Oct 2011 09:08:23 +1300
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On 09/30/11 12:25 PM, Nephi Immortal wrote:
> 	I created two templates.  First template is like trait types.  Second
> template includes first template.  Everything works fine except second
> template.
>
> 	The error message reports:
>
>    Main.cpp
> c:\my projects\main.cpp(230): fatal error C1001: An internal error has
> occurred in the compiler.
>    (compiler file 'msc1.cpp', line 1420)
>     To work around this problem, try simplifying or changing the
> program near the locations listed above.
>    Please choose the Technical Support command on the Visual C++
>     Help menu, or open the Technical Support help file for more
> information
>
> 	I searched several websites.  I was unable to find the solution.  I
> checked C++ Template - The Complete Guide book and the section shows
> 4.3 Restrictions for Nontype Template Parameters.
>
> 	Do you have the solution?  Is there another way to change the code in
> order to work?
>
> enum ETypes
> {
> 	e_Type1,
> 	e_Type2
> };
>
> template<  ETypes Type>
> struct Types;
>
> template<>
> struct Types<  e_Type1>
> {
> 	typedef char value_type;
> 	value_type x;
> };
>
> template<>
> struct Types<  e_Type2>
> {
> 	typedef short value_type;
> 	value_type x;
> };
>
> template<  ETypes Type, typename Traits = Types<  Type>  >
> struct t_Type
> {
> 	typename typedef Traits::value_type value_type;

Try changing all occurrences of "typename typedef" to "typedef typename".

-- 
Ian Collins

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Thread

Half templates does not work. Nephi Immortal <immortalnephi@gmail.com> - 2011-09-29 16:25 -0700
  Re: Half templates does not work. red floyd <no.spam.here@its.invalid> - 2011-09-29 21:16 -0700
    Re: Half templates does not work. Nephi Immortal <immortalnephi@gmail.com> - 2011-09-30 05:15 -0700
      Re: Half templates does not work. Miles Bader <miles@gnu.org> - 2011-10-01 07:35 +0900
  Re: Half templates does not work. Noah Roberts <roberts.noah@gmail.com> - 2011-09-30 09:25 -0700
    Re: Half templates does not work. Nephi Immortal <immortalnephi@gmail.com> - 2011-09-30 12:17 -0700
  Re: Half templates does not work. Ian Collins <ian-news@hotmail.com> - 2011-10-01 09:08 +1300

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