Clang在windows下編譯錯誤++ 4.0.0

我使用在windows 10（32位操作系統，x86處理器）上從源編譯的clang 4.0.0。我試圖將我的cpp代碼編譯爲llvm格式爲ll的代碼。下面是其無法使用鐺編譯示例代碼：Clang在windows下編譯錯誤++ 4.0.0

#include <windows.h> 
#include <tlhelp32.h> 
#include <fstream> 
#include <mapi.h> 
#include <memory> 
#include<stdio.h> 

/* Function to calculate x raised to the power y */ 
int power(int x, unsigned int y) 
{ 
    if (y == 0) 
     return 1; 
    else if (y%2 == 0) 
     return power(x, y/2)*power(x, y/2); 
    else 
     return x*power(x, y/2)*power(x, y/2); 
} 

/* Program to test function power */ 
int main() 
{ 
    int x = 2; 
    unsigned int y = 3; 

    printf("%d", power(x, y)); 
    return 0; 
}

這僅僅是一個示例代碼，但它是在所有的C++代碼，其中包括所列出的頭文件相同的行爲。我用下面的命令將其編譯成LLVM IR代碼：

clang++ -S -emit-llvm assiral.cpp -o assiral.ll

在編譯時我收到以下錯誤：

C:\Sample>clang++ -emit-llvm -S assiral.cpp -o assiral.ll 
In file included from assiral.cpp:3: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\fstream:6: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\includem:6: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\ostream:6: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\ios:6: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xlocnum:7: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\cmath:617: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xtgmath.h:9: 
C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xtr1common:204:22: error: 
use of undeclared identifier 'char16_t' 
struct _Is_integral<char16_t> 
^ 
C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xtr1common:210:22: error: 
use of undeclared identifier 'char32_t' 
struct _Is_integral<char32_t> 
^ 
In file included from assiral.cpp:3: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\fstream:6: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\includem:6: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\ostream:6: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\ios:6: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xlocnum:10: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\streambuf:6: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xiosbase:6: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xlocale:8: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\stdexcept:6: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\exception:7: 
In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\type_traits:6: 
C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xstddef:257:2: error: 'auto' 
    return without trailing return type; deduced return types are a C++14 extension 
auto _Unfancy(_Ptrty _Ptr) 
^
    In file included from assiral.cpp:3: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\fstream:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\includem:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\ostream:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\ios:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xlocnum:10: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\streambuf:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xiosbase:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xlocale:8: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\stdexcept:7: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xstring:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xmemory0:8: 
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\limits:612:33: error: use of 
    undeclared identifier 'char16_t' 
    template<> class numeric_limits<char16_t> 
^
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\limits:902:33: error: use of 
    undeclared identifier 'char32_t' 
    template<> class numeric_limits<char32_t> 
^
    In file included from assiral.cpp:3: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\fstream:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\includem:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\ostream:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\ios:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xlocnum:10: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\streambuf:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xiosbase:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xlocale:8: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\stdexcept:7: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xstring:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xmemory0:10: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xutility:8: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\utility:7: 
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\iosfwd:254:21: error: use of 
    undeclared identifier 'char16_t' 
    struct char_traits<char16_t> 
^
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\iosfwd:263:21: error: use of 
    undeclared identifier 'char32_t' 
    struct char_traits<char32_t> 
^
    In file included from assiral.cpp:3: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\fstream:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\includem:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\ostream:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\ios:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xlocnum:10: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\streambuf:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xiosbase:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xlocale:8: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\stdexcept:7: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xstring:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xmemory0:10: 
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xutility:698:2: error: 
    'auto' return without trailing return type; deduced return types are a C++14 extension 
auto _Unchecked_n(_Iter _Src, _Diff) 
^
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xutility:742:2: error: 
    'auto' return without trailing return type; deduced return types are a C++14 extension 
auto _Unchecked_n_backward(_Iter _Src, _Diff) 
^
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xutility:1142:12: error: 
    deduced return types are a C++14 extension 
constexpr decltype(auto) _Operator_arrow(_Iterator&& _Target, false_type) 
^
    In file included from assiral.cpp:3: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\fstream:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\includem:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\ostream:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\ios:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xlocnum:10: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\streambuf:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xiosbase:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xlocale:8: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\stdexcept:7: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xstring:6: 
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xmemory0:356:2: error: 
    'auto' return without trailing return type; deduced return types are a C++14 extension 
auto _Const_cast(_Ptrty _Ptr) 
^
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xmemory0:366:2: error: 
    'auto' return without trailing return type; deduced return types are a C++14 extension 
auto _Const_cast(_Ty * _Ptr) 
^
    In file included from assiral.cpp:3: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\fstream:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\includem:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\ostream:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\ios:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xlocnum:10: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\streambuf:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xiosbase:6: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xlocale:8: 
    In file included from C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\stdexcept:7: 
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xstring:75:2: error: 
    statement not allowed in constexpr function 
    for (auto _Match_try = _Haystack + _Start_at; ; ++_Match_try) 
^
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xstring:119:3: error: 
    statement not allowed in constexpr function 
    for (auto _Match_try = _Haystack + _Min_value(_Start_at, _Hay_size - _Needle_size); ; --_Match_try) 
^
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xstring:144:3: error: 
    statement not allowed in constexpr function 
    for (auto _Match_try = _Haystack + _Min_value(_Start_at, _Hay_size - 1); ; --_Match_try) 
^
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xstring:169:3: error: 
    statement not allowed in constexpr function 
    for (auto _Match_try = _Haystack + _Start_at; _Match_try < _End; ++_Match_try) 
^
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xstring:188:3: error: 
    statement not allowed in constexpr function 
    for (auto _Match_try = _Haystack + _Min_value(_Start_at, _Hay_size - 1); ; --_Match_try) 
^
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xstring:213:3: error: 
    statement not allowed in constexpr function 
    for (auto _Match_try = _Haystack + _Start_at; _Match_try < _End; ++_Match_try) 
^
    C:\Program Files\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\include\xstring:233:3: error: 
    statement not allowed in constexpr function 
    for (auto _Match_try = _Haystack + _Start_at; _Match_try < _End; ++_Match_try) 
^
    fatal error: too many errors emitted, stopping now [-ferror-limit=] 
    20 errors generated.

我希望在運行命令後已生成的字節碼文件（.ll文件）。我看過很多帖子，他們在其中引入了一個標誌：'-fms-compatibility-version = 19'以及命令。然而，添加的標誌被標記爲未知參數。我正在使用MSVS 2017.也許我錯誤地使用了這個標誌。但是我現在一直處於這種僵局。任何幫助或建議將不勝感激。

來源

2017-10-12 Vishal Llewellyn

請包括一個最小的可編譯示例。 – OmnipotentEntity

感謝您更新您的問題。通過稍微修改源代碼來刪除Windows特定的頭文件，它在Linux下編譯得很好。這就是我開始排除故障的地方。嘗試重新安排您的內容並刪除不需要的內容。 – OmnipotentEntity

你究竟是什麼意思？由於標題問題，它沒有進入編譯階段。 –

這是通過向環境變量INCLUDE中的頭文件添加正確路徑來解決的。一旦我修復了路徑，我的大部分錯誤都得到了解決。這包括編譯引用某些頭文件（如windows.h）的C++文件時找不到文件的錯誤。

鏈接如何做同樣的：List all environment variables from command line?

您還可以解決另一個問題是：通過設置LIBPATH環境變量

link fatal error lnk1104 cannot open file 'libcmt.lib'

指向LIBCMT.LIB的正確的位置文件。我發現我的地址爲：

C:\Program Files\Microsoft Visual Studio 14.0\VC\lib

這些微不足道的問題讓我花了好幾天才弄清楚。希望這可以爲別人節省同樣的麻煩。

來源

2017-10-17 20:15:04

Clang在windows下編譯錯誤++ 4.0.0

回答

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