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C2011 'class' type redefinition


By : tissa
Date : July 29 2020, 10:00 AM
will be helpful for those in need Your file GBMap.cpp contains two definitions for the class GBMap. One you have written directly, and the other definition you have included from the file GBMap.h. After the inclusion, the translation unit looks like this:
code :
#include<iostream>
#include<cstdlib>
using namespace std;

class GBMap {

};

class GBMap {

};


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C++/CLI: Public ref struct generates C2011: 'class' type redefinition


By : richieliuse
Date : March 29 2020, 07:55 AM
I hope this helps . You have to de-tune the traditional C/C++ header file think a bit when you work with managed code. The principal source of type declarations is the assembly metadata. This is very different from the native C/C++ compilation model where you have to have a header file for types that you make visible to other modules.
I'm going to guess that you get this C2011 error in the EXE project. Where you both added a reference to the DLL project assembly (like you should) and used #include on the header file. Like you should not. That's a guaranteed duplicate definition, #pragma once doesn't fix that.

Error C2011: 'XX' : 'class' type redefinition


By : Seth Cooper
Date : March 29 2020, 07:55 AM
this one helps. I have this compiler error (C2011) with this piece of code. I don't know what is wrong with it. , Include guards:
code :
#ifndef FILE_H
#define FILE_H

//file contents here

#endif
#pragma once

error C2011: '' : 'class' type redefinition


By : user2384271
Date : March 29 2020, 07:55 AM
To fix this issue One of the header files is as follows - , Change to code to something like this:
code :
#ifndef AAA_HEADER
#define AAA_HEADER

#include "stdafx.h"

class AAA
{
public:
    std::string strX;
    std::string strY;
};

#endif

C2011 'Node':'class' type redefinition


By : user6509663
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Problem
In C++, headers are simply pasted into the body when you #include. So now the compiler sees:
code :
class Node {

public:
   Node(int order) {};
};

// stuff from system headers omitted for brevity

using namespace std;

class Node {
  bool leaf;
  //...
};
 #include <map>

 using namespace std;

 class Node {
    bool leaf;
    Node** kids;
    map<int, string> value;
    int keyCount;//number of current keys in the node

    //constructor;
    Node(int order);
};
Node::Node(int order) {
  // ...
}

Visual Studio 2015 C2011 'Class' type redefinition


By : crxticul
Date : March 29 2020, 07:55 AM
help you fix your problem Your .cpp files redefine your classes. You've already defined them in the respective .h files. All you need to include in your .cpp files is the implementations. They should look more like this:
fileReader.cpp
code :
#include "stdafx.h"
#include <stdio.h>
#include <stdlib.h>
#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <thread>

#include "numbers.h"
#include "loadingBar.h"

vector<string> fileReader::readTextFile(string path) {

    ifstream file(path.c_str(), ios::in | ios::binary | ios::ate);

    i = 0;
    size = 0;
    loadedBytes = 0;

    ifstream file(path.c_str(), ios::in | ios::binary | ios::ate);

    if (file.is_open()) {
        size = file.tellg();
        cout << "\t" << path << " (" << formatNumbers(size) << " bytes)" << endl;
        file.clear();
        file.seekg(0, ios::beg);

        barThread = new std::thread(&loadingBar::run, *this);

        while (file >> line) {
            list.push_back(line);
            loadedBytes += strlen(line.c_str());
            i++;
        }

    }
    else {
        cout << "Error reading : \"" << path << "\"" << endl;
        exit(EXIT_FAILURE);
    }
    file.close();
    return list;
}

unsigned int fileReader::getSize() { return size; }
unsigned int fileReader::getLoadedBytes() { return loadedBytes; }
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