New to C++

This is a discussion on New to C++ within the C++ Programming forums, part of the General Programming Boards category; Hello to all, I am a newbie to C++ and trying to get started with a tutorial book. My first ...

  1. #1
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    New to C++

    Hello to all,

    I am a newbie to C++ and trying to get started with a tutorial book. My first hiccup is with my first program. I can't get it to compile. Heres the code:

    Code:
    #include <stdafx.h>
    #include <iostream>
    using namespace std ;
    
    int main()
        {
            cout << "Never fear, C++ is here!" ;
            return 0 ;
        }
    The error I receive is that the file "stdafx.h" cannot be found. I am working on a Mac OSX and have had no problems programming in C. Any suggestions would be great.

  2. #2
    C++まいる!Cをこわせ! Elysia's Avatar
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    Remove the #include <stdafx.h> line.
    It's for when compiling with precompiled headers with Visual Studio, but you aren't using VS.
    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.
    For information on how to enable C++11 on your compiler, look here.
    よく聞くがいい!私は天才だからね! ^_^

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    I have taken out that particular header file but have received other errors.

    when i compile with the command:

    gcc file.cpp -o file

    I get the following error:

    ld: can't open output file for writing: print1
    collect2: ld returned 1 exit status

    I tried compiling with a different output name but received a lot of other errors:

    Undefined symbols:
    "___gxx_personality_v0", referenced from:
    ___gxx_personality_v0$non_lazy_ptr in ccTcu6UL.o
    "std::ios_base::Init::~Init()", referenced from:
    ___tcf_0 in ccTcu6UL.o
    "std::basic_ostream<char, std::char_traits<char> >& std:perator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)", referenced from:
    _main in ccTcu6UL.o
    "std::ios_base::Init::Init()", referenced from:
    __static_initialization_and_destruction_0(int, int)in ccTcu6UL.o
    "std::cout", referenced from:
    __ZSt4cout$non_lazy_ptr in ccTcu6UL.o
    ld: symbol(s) not found
    collect2: ld returned 1 exit status

    any suggestions???

  4. #4
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    lol @ perator

  5. #5
    Frequently Quite Prolix dwks's Avatar
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    Yes: you have to use g++. gcc is for compiling C programs. g++ is for C++.

    [edit] That would be the cause of the second error. For the first error, perhaps you already have a program called "file" that you don't have write permission to, or something like that. [/edit]

    Note: you can use [noparse][/noparse] tags to disable the board's parsing of smileys if you want to, thus avoiding the above.
    Last edited by dwks; 06-20-2008 at 10:30 PM.
    dwk

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  6. #6
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    Thank you for the help. I did not know that the terminal command would be:

    c++ file.cpp -o file

    I appreciate the help.

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