C ++：std没有成员“ string”

Question

I have coded the following:

STDMETHODIMP CWrapper::openPort(LONG* m_OpenPortResult)
{
    std::string str;
    //const char * c = str.c_str();
    // Open("test".c_str())

    return S_OK;
}

The compiler tells me "There is no such member "string" in the namespace std".

My includes look like this:

#include "stdafx.h"
#include "Wrapper.h"
#include <string.h>
using namespace std;

Did I do anything wrong so far?

Answer 1

您需要添加以下内容：

#include <string>