Input in C++

This is a discussion on Input in C++ within the C++ Programming forums, part of the General Programming Boards category; Now I'm trying to write a save file, where part of the filename is a variable that you type in(your ...

  1. #16
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    Now I'm trying to write a save file, where part of the filename is a variable that you type in(your character's name), so each character generates its own unique save file. Here's what I have so far:
    Code:
    cout<<"Who are you? ";
             cin>>input;
             ofstream a_file (".sav");
             a_file<<"<Save game info for this character...>";
             a_file.close();
    I need a way to add the value of input before the ".sav" in the filename, is there a simple way to do this?

  2. #17
    Code Goddess Prelude's Avatar
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    Assuming input is a string object, it's trivial:
    Code:
    ofstream a_file (input + ".sav");
    My best code is written with the delete key.

  3. #18
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    Hrm, when trying that, I get this error:

    60 E:\Dev-Cpp\My Crap\New Adventure RPG\Adventure RPG.cpp no matching function for call to `std::basic_ofstream<char, std::char_traits<char> >::basic_ofstream(std::basic_string<char, std::char_traits<char>, std::allocator<char> >)'

  4. #19
    Code Goddess Prelude's Avatar
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    Heheh, silly me. I keep forgetting to do that:
    Code:
    ofstream a_file ( (input + ".sav").c_str() );
    A C-style string is expected, but after the concatenation all you have is a string object. So you need to call the c_str member function to get a C-style string.
    My best code is written with the delete key.

  5. #20
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    Thank you much! That works beautifully! Now, all I need to learn is how to make a @ dude that can move around, and I'm well on my way

    (I've decided to go after my roguelike dream again)

  6. #21
    The superhaterodyne twomers's Avatar
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    You gonna use the arrow keys for that? I'd recommend this FAQ link then

  7. #22
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    Yes, I have started a new thread in the games section for this, located here: http://cboard.cprogramming.com/showt...430#post591430

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