C ++，无法打开源文件“ ifstream” Visual Studio

Question

I am getting two syntax? errors even though the project builds successfully. Certain parts of my code are highlighted as red in Visual Studio in the following locations that I have commented at:

#include <vector>
#include <string>
#include <iostream>
#include <ifstream> //include is highlighted// Error: cannot open source file "ifstream"

using namespace std;

class DictionarySorter{
public:

    DictionarySorter(){

    }
    void readDic(string name){
        ifstream dicFile (name); //dicFile is highlighted here// Error: incomplete type is not allowed

    }
private:
    vector<string> v;


};

Answer 1

std::ifstream is defined in the header <fstream> . There is no standard header <ifstream> .

Answer 2

The C++ ifstream takes a c-string as the parameter for the opening of a file name. Simply change the name in ifstream dicFile(name); to ifstream dicFile(name.c_str());

You're also including a library called ifstream which doesn't exist. The ifstream object is within the fstream library.