I have tried the method but no use. The error still occur. In the matrix_expression.hpp,the const_itertaor2 class have be derclare before then define later as an embeded class. I find all errors happan in the embeded class define and report "error C2027: use of undefined type 'boost::numeric::ublas::matrix_binary_scalar2::const_iterator2 ........" but the class would actually declare ----- Original Message ----- From: Newsgroups: gmane.comp.lib.boost.user Sent: Thursday, November 27, 2003 11:24 PM Subject: Re: Re: ublas + msvc 7.1

I have noticed something similar with msvc 7.1. Could you try please to locate the first occurence of the error and prefix any template deduced type with "typename". In the example you give:

typename boost::numeric::SOME_MATRIX_TYPE<ARGS>::const_iterator2

and check that this precise compile error disappears ? (I have realised the code is boost::ublas'). This does not intend to solve your problem but to point to what vc7.1 is expecting. I am not sure whether that should be strict ISO C++.

Regards,

Cyril Godart.

Internet fuxiaowei9999@hotmail.com@lists.boost.org - 25/11/2003 12:21

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Subject: [Boost-users] Re: ublas + msvc 7.1

Hi Whittley: I think this may be a bug in VC7.1. I try it successly under VC6.0 and find that the ublas is develop under VC6.0 with Dinkumware STL in its document. Yours f_x_w ----- Original Message ----- From: "Witz" Newsgroups: gmane.comp.lib.boost.user Sent: Monday, November 24, 2003 9:09 AM Subject: ublas + msvc 7.1

...

hi,

I seem to be having problems with ublas in combination with msvc 7.1. Compiling the code below results in a whole slew of errors of the form:

'use of undefined type 'boost::numeric::SOME_MATRIX_TYPE<ARGS>::const_iterator2'

Am i doing something dumb or is something broken?

#include

int main() { using namespace boost::numeric::ublas; triangular_matrix ldm(4,4); }

I.M.Whittley

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