Many thanks - that is most helpful and may eventually solve the problem. Paul | -----Original Message----- | From: boost-bounces@lists.boost.org | [mailto:boost-bounces@lists.boost.org] On Behalf Of Bronek Kozicki | Sent: 07 March 2004 19:45 | To: boost@lists.boost.org | Subject: [boost] Re: Re: [math constants] C++ Language gurus | views neededandCodewarrior & Comeau testers | | | On Sun, 7 Mar 2004 17:54:37 -0000, Paul A Bristow wrote: | > Daniel Frey's constant library milestone 2 | > | > /MathConstants/constant_library_m2_v1.tgz 21 Aug 2003 | | Ok, thanks. I have it. After some fixing (change file | extension from .cc | to .cpp, change line endings from LF to CRLF, append one more | directory | to INCLUDE) I received following error: | | example.cpp(18) : error C3200: 'boost::math::pi_value<T>' : invalid | template argument for template parameter 'F', expected a | class template | example.cpp(18) : see reference to class template | instantiation | 'boost::math::pi_value<T>' being compiled | example.cpp(81) : fatal error C1903: unable to recover from previous | error(s); stopping compilation | | I have stripped down problematic code to very simple: | | #include <iostream> | | template <template <typename> class F, typename T> struct | constant_value | { | T operator()() const | { | return T(); | } | }; | | template <typename T> struct pi_value : constant_value | <pi_value, T> {}; | | int main() | { | pi_value<double> t; | std::cout << t(); | } | | and tried it under Comeau (online), with no problems. It also compiles | fine under GCC 3.3.1 (mingw). From my (limited) understanding of | templates this code is fine, thus apparently there's problem | with VC71. | Looks like using template being just defined as template template | parameter makes VC71 confused. I reported it to Microsoft (on its | private newsgroup). | | | B. | | _______________________________________________ | Unsubscribe & other changes: | http://lists.boost.org/mailman/listinfo.cg| i/boost | |