Error with external symbol?

This is a discussion on Error with external symbol? within the C++ Programming forums, part of the General Programming Boards category; For some reason I keep getting the following error: error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup I'm ...

  1. #1
    Registered User
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    Dec 2009
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    9

    Error with external symbol?

    For some reason I keep getting the following error:
    error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup

    I'm sure it's a quick fix but I can't find a way around it. I tried re creating the project because I know sometimes that works, but it didn't.

    Here's the code.

    Code:
    #include "stdafx.h"
    #include <cstdlib>
    #include <ctime>
    #include <iostream>
    
    using namespace std;
    void fct() 
    {
    int arr[10];
    int * aptr = arr;
    srand((unsigned int)time(0));
    for (aptr = arr; aptr<=&arr[9];aptr++)
    {
    *aptr = rand() % 41;
    cout << *aptr << '\t' << aptr << endl;
    }
    }
    Please help me fix it. I'm almost done!

  2. #2
    C++まいる!Cをこわせ! Elysia's Avatar
    Join Date
    Oct 2007
    Posts
    22,780
    You haven't created a main function! Every C++ program needs a main function, otherwise it won't run.
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

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