VS2010 C++ does not know std, there is a compile error

[Lawrence2001]

I created a C++ Win32 app with VS2010 version 10.0.30319.1 RTMRel. It has a std::string. There are error messages on std.

Here is the code.


// StudyCPPHSTimer.cpp : Defines the entry point for the console application.

//


#include








"stdafx.h"


#include








<Windows.h>


int








_tmain(int argc, _TCHAR* argv[])

{

std::string s1;









return 0;

}

The error messages are

C2039 string is not a member of 'std'

C0265 string: undeclared identifier

C2146 syntax error: missing ';' before identifier 's1'

C2065 's1': undeclared identifier

IntelliSense: name followed by '::' must be a class or a namespace name

IntelliSense: expected a ';'



BTW I converted a VS2008 C++ project which has std::string code and it compiled without errors.


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