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Re: [libcvd-members] GVars3: Compiling with TooN 2 on Windows (VC++9.0/2

From: E. Rosten
Subject: Re: [libcvd-members] GVars3: Compiling with TooN 2 on Windows (VC++9.0/2008)
Date: Mon, 1 Feb 2010 16:03:33 +0000 (GMT)
User-agent: Alpine 2.00 (LSU 1167 2008-08-23)

On Sat, 30 Jan 2010, Markus Mayer wrote:


while trying to compile libcvd/GVars3 on Windows (x64, Visual Studio
2008) I encountered a nasty problem in operators.hh, lines 60 to 63. The
compilation died with the following error:

1>C:\dev\Libraries\TooN\TooN/internal/operators.hh(60) : warning C4346:
: dependent name is not a type
1>        prefix with 'typename' to indicate a type
1>        C:\dev\Libraries\TooN\TooN/internal/operators.hh(60) : see
reference to class template instantiation
'TooN::Internal::AddType<L,R,F>' being compiled
1>C:\dev\Libraries\TooN\TooN/internal/operators.hh(60) : error C2146:
syntax error : missing ';' before identifier 'type'
1>C:\dev\Libraries\TooN\TooN/internal/operators.hh(60) : error C4430:
missing type specifier - int assumed. Note: C++ does not support default-int

The line being:

template<class L, class R, int F = Field<L,R>::is> struct AddType      {
typedef TOON_TYPEOF(gettype<L>()+gettype<R>()) type;};

Turns out error C4346 is a feature "in order to conform to the ISO C++
The solution is to add the "typename" keyword so that the line reads

It looks like you've got TooN configured to use Boost. Is this correct?


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