我已经为windows 3.6.2和Visual Studio 2015安装了预构建的llvm + clang。现在在VS 2015中，您可以创建项目并将编译器设置为clang。似乎clang的安装已将编译器注册到设置中。其他一切都很好，除了我不能使用和标准库。
clang的编译器设置是属性 - >通用 - >平台工具
下的LLVM-vs2014例如，在编译此代码时
#include <iostream>
int main(int argc, char ** argv) {
return 0; }
如果删除#include行，一切正常。
任何想法？
The output message from VS is:
1>------ Build started: Project: TT, Configuration: Debug Win32 ------
1>clang-cl.exe : warning : argument unused during compilation: '/ZI'
1>clang-cl.exe : warning : argument unused during compilation: '/Gm'
1>clang-cl.exe : warning : argument unused during compilation: '/GS'
1>clang-cl.exe : warning : argument unused during compilation: '/fp:precise'
1>clang-cl.exe : warning : argument unused during compilation: '/FdDebug\vc140.pdb'
1> In file included from main.cpp:1:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\iostream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\istream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\ostream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\ios:6:
1
> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xlocnum:7:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\cmath:656:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xtgmath.h:8:
1>C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xtr1common(231,22): error : use of undeclared identifier 'char16_t'
1> struct _Is_integral<char16_t>
1> ^
1>C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xtr1common(237,22): error : use of undeclared identifier 'char32_t'
1> struct _Is_integral<char32_t>
1> ^
1> In file included from main.cpp:1:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\iostream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\istream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\ostream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\ios:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xlocnum:10:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\streambuf:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xiosbase:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xlocale:8:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\stdexcept:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\exception:7:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\type_traits:6:
1>C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xstddef(408,14): error : use of undeclared identifier 'char16_t'
1> struct hash<char16_t>
1> ^
1>C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xstddef(414,14): error : use of undeclared identifier 'char32_t'
1> struct hash<char32_t>
1> ^
1> In file included from main.cpp:1:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\iostream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\istream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\ostream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\ios:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xlocnum:10:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\streambuf:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xiosbase:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xlocale:8:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\stdexcept:7:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xstring:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xmemory0:8:
1>C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\limits(615,33): error : use of undeclared identifier 'char16_t'
1> template<> class numeric_limits<char16_t>
1> ^
1>C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\limits(905,33): error : use of undeclared identifier 'char32_t'
1> template<> class numeric_limits<char32_t>
1> ^
1> In file included from main.cpp:1:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\iostream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\istream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\ostream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\ios:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xlocnum:10:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\streambuf:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xiosbase:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xlocale:8:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\stdexcept:7:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xstring:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xmemory0:10:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xutility:8:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\utility:7:
1>C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\iosfwd(267,21): error : use of undeclared identifier 'char16_t'
1> struct char_traits<char16_t>
1> ^
1>C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\iosfwd(276,21): error : use of undeclared identifier 'char32_t'
1> struct char_traits<char32_t>
1> ^
1> In file included from main.cpp:1:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\iostream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\istream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\ostream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\ios:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xlocnum:10:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\streambuf:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xiosbase:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xlocale:8:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\stdexcept:7:
1>C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xstring(2623,22): error : use of undeclared identifier 'char16_t'
1> typedef basic_string<char16_t, char_traits<char16_t>, allocator<char16_t> >
1> ^
1>C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xstring(2623,53): error : expected unqualified-id
1> typedef basic_string<char16_t, char_traits<char16_t>, allocator<char16_t> >
1> ^
1>C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xstring(2625,22): error : use of undeclared identifier 'char32_t'
1> typedef basic_string<char32_t, char_traits<char32_t>, allocator<char32_t> >
1> ^
1>C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xstring(2625,53): error : expected unqualified-id
1> typedef basic_string<char32_t, char_traits<char32_t>, allocator<char32_t> >
1> ^
1> In file included from main.cpp:1:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\iostream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\istream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\ostream:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\ios:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xlocnum:10:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\streambuf:6:
1> In file included from C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xiosbase:6:
1>C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xlocale(1004,30): error : use of undeclared identifier 'char16_t'
1> class _CRTIMP2_PURE codecvt<char16_t, char, _Mbstatet>
1> ^
1>C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\xlocale(1328,30): error : use of undeclared identifier 'char32_t'
1> class _CRTIMP2_PURE codecvt<char32_t, char, _Mbstatet>
1> ^
1> 14 errors generated.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
答案 0 :(得分：2)
Clang 3.6不支持Microsoft模式下的C ++ 11关键字char16_t和char32_t（see the source）。然而，根据LLVM网站的说法，3.7确实会在三周内（8月21日）发布。同时，您可以安装3.7 release candidate或snapshot build。