为什么这段代码不能在 Visual Studio 2010 中编译和运行？

Question

我正在尝试将 Visual Studio 2010 设置为进行普通的旧 ANSI 编译，而无需任何类型的 Microsoft 扩展。

我从一个空的项目模板开始，因为 2010 年似乎不再有一个普通的 ANSI 项目模板。

然后我设置

属性 -> 配置属性 -> C/C++ -> 语言 -> 禁用扩展 = 是 (/Za)

这是我的代码：

#include <iostream>

int main( int argc, const char* argv[] )
{
  std::cout << "Hello World!";
  return 0;
}

以下是错误：

1>------ Build started: Project: ansi_test, Configuration: Release Win32 ------
1>Build started 4/27/2011 4:20:00 PM.
1>InitializeBuildStatus:
1>  Touching "Release\ansi_test.unsuccessfulbuild".
1>ClCompile:
1>  Main.cpp
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\ostream(636): error C3861: 'width': identifier not found
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\ostream(636): error C3861: 'width': identifier not found
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\ostream(639): error C3861: 'flags': identifier not found
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\ostream(643): error C2227: left of '->sputc' must point to class/struct/union/generic type
1>          type is ''unknown-type''
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\ostream(643): error C2780: 'void std::fill(_FwdIt,_FwdIt,const _Ty &)' : expects 3 arguments - 0 provided
1>          C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xutility(2712) : see declaration of 'std::fill'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\ostream(643): error C3861: 'rdbuf': identifier not found
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\ostream(648): error C2227: left of '->sputc' must point to class/struct/union/generic type
1>          type is ''unknown-type''
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\ostream(648): error C3861: 'rdbuf': identifier not found
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\ostream(654): error C2227: left of '->sputc' must point to class/struct/union/generic type
1>          type is ''unknown-type''
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\ostream(654): error C2780: 'void std::fill(_FwdIt,_FwdIt,const _Ty &)' : expects 3 arguments - 0 provided
1>          C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xutility(2712) : see declaration of 'std::fill'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\ostream(654): error C3861: 'rdbuf': identifier not found
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\ostream(659): error C3861: 'width': identifier not found
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:00.63

我如何得到这个，最基本的 C++ 代码才能编译干净？

Answer 1

如果您将wchar_t定义为 native type ，错误就会消失。

Answer 2

如果我将您的代码复制到文件中，test.cpp 然后发出命令

cl /Za /EHsc test.cpp

然后它编译干净，在我安装 Visual c++ express 2010 时没有任何警告或错误。 /EHsc 是正确处理异常所必需的，我真的不明白为什么它不是默认值。

这与您正在做的事情不同吗？