Subject: Re: [boost] [ublas] FYI: msvc12 compilation errors and some questions
From: Adam Wulkiewicz (adam.wulkiewicz_at_[hidden])
Date: 2014-04-25 16:42:32
Beman Dawes wrote:
> On Thu, Apr 17, 2014 at 4:17 PM, Adam Wulkiewicz
>> FYI, ublas is broken for MSVC 12 due to the use of constexpr which is not
>> suported by this compiler.
>> I might fix it however I assume there are people who would like to do it.
>> Btw, would you be so kind and answer for some questions? I'm curious about
>> the design.
>> Why BOOST_UBLAS_CPP_GE_2011 library-wide #define is usedto enable
>> This makes it available only on some compilers which allows the users to
>> write non-portable code.
>> Shouldn't Boost libraries use language featureswhen they're available or
>> emulate them rather than enable/disable some functionalities?
>> Especially when it could be easily done, like in this case.
>> Variadic templates may be emulated with Boost.Preprocessor, e.g. see how
>> emplace_back() is implemented in boost::container::vector<> :
>> include/boost/container/vector.hpp lines 1309-1380.
>> constexpr may be conditionally used e.g. like this:
>> #define CONSTEXPR_OR_STATIC constexpr
>> #define CONSTEXPR_OR_STATIC static
uBlas is still broken so I created a ticket:
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