Why won't this code compile and run in Visual Studio 2010? - c++

Question

I am trying to get Visual Studio 2010 set up to do plain old ANSI compilation, without Microsoft extensions of any kind.
I started with an empty project template, since there doesn't seem to be a plain ANSI project template in 2010 anymore.
Then I set
Properties -> Configuration Properties -> C/C++ -> Language -> Disable Extensions = Yes (/Za)
Here is my code:
#include <iostream>
int main( int argc, const char* argv[] )
{
std::cout << "Hello World!";
return 0;
}
Here are the errors:
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
How do I get this, the most basic of C++ code to compile cleanly?

Answer 1

The error disappears if you define wchar_t as native type.

Answer 2

If I copy your code into a file, test.cpp and then issue the command
cl /Za /EHsc test.cpp
then it compiles cleanly without any warnings or errors on my install of visual c++ express 2010. /EHsc is necessary in order to handle exceptions properly and I don't really understand why it isn't the default.
Is this different from what you are doing?