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qualified names in C++ class declaration

c++,visual-c++,struct,msvc12
According to this page, the class name can be "optionally qualified". Thus, I expect the following code to compile: struct ::globalSt {}; In MSVC 2013u4, I get an error: Error 1 error C2039: 'globalSt' : is not a member of '`global namespace'' Am I misinterpreting the reference or is that...

Custom Build Rule fails after converting to VS2013

visual-studio-2013,msvc12,build-rules
I need to integrate a legacy VS2008 project into my VS2013 solution. This project uses some custom build rules which initially worked after converting the .vcproj to a .vcxproj. However, when doing a fresh checkout of the project including the .vcxproj, the project file can no longer be opened. I've...

MSVC 12 std::initializer_list bug when copying std::string

c++11,visual-studio-2013,language-lawyer,msvc12
I'm trying to create a C++ program with MSVC 12 (Visual Studio 2013, Update 4) which uses a std::initializer_list of structs which have std::string members. I seem to have run into a bug in MSVC. Here's a minimal example which exhibits the problem: #include <cassert> #include <initializer_list> #include <string> namespace...

Why do MSVC optimizations break SSE code when function arguments are const refs to temporaries or temporaries copied by value?

c++,c++11,visual-c++,sse,msvc12
Ran into this yesterday, I will try to give clear and simple examples which fail for me with MSVC12 (VS2013, 120) and MSVC14 (VS2015, 140). Everything is implicitly /arch:SSE+ with x64. I will trivialize the issue to a simple matrix transpose example using defined macros _MM_TRANSPOSE4_PS for illustration purposes. This...

Static Class Template member initialization

templates,c++11,visual-c++,static,msvc12
I have an issue when trying to initialize static members of a static class template. Basically, what I thought this approach would be useful for: I have a lot of objects, which are of course all of the same Base type but they have differing object types. I just want...

Building libtorrent with openssl with BJam

c++,bjam,libtorrent,msvc12
I am trying to build libtorrent (http://www.libtorrent.org/) using the provided jamfile. If I try to build it in its vanilla state everything goes well. I am then building using this command: bjam msvc-12.0 boost=source However I want to build it with OpenSSL which there seem to be support for. This...

Ambiguous inheritance of function when multiple inheritance of classes that themselves have diamond inheritance in their hierarchy

c++,inheritance,multiple-inheritance,virtual-inheritance,msvc12
Word description (code below): I have a library that provides a collection of classes. For each group of class we have two concrete types, (ClassA_Partial, ClassA), (ClassB_Partial, ClassB) etc. Each of these implements (Interface_Partial, Interface) respectively. Additionally, Interface is a Interface_Partial and each Class? is a Class?_Partial - creating a...