Program is doing nothing...

This is a discussion on Program is doing nothing... within the C++ Programming forums, part of the General Programming Boards category; Hello, I've been having some problems regarding program functionality. The other day I decided to write a small program which ...

  1. #1
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    Program is doing nothing...

    Hello, I've been having some problems regarding program functionality. The other day I decided to write a small program which prints the 255 ASCII characters in an organized manner. The thing is, the program starts but does nothing at all, but sit there at Command Prompt. I finished reading SAMS Teach Yourself C++ in 21 Days and decided writing my own small programs, so I'm still somewhat a beginner in the sense that I have no real experience, so obviously, my strategies in this are a bit sloppy.

    Code:
    #include <iostream>
    
    using std::cin;
    using std::cout;
    using std::endl;
    
    int main()
    {
       unsigned char x;
    
       for (unsigned short i = 0; i >= x; i++)
       {
          cout << x;
          if (x == 50 || x == 100 || x == 150 || x == 200)
             cout << endl;
       }
    
       cin.get();
       return 0;
    }

  2. #2
    Cat without Hat CornedBee's Avatar
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    Code:
       unsigned char x;
    
       for (unsigned short i = 0; i >= x; i++)
       {
          cout << x;
    There are three errors in these three (relevant) lines. Perhaps you should describe in plain English what these lines do.
    All the buzzt!
    CornedBee

    "There is not now, nor has there ever been, nor will there ever be, any programming language in which it is the least bit difficult to write bad code."
    - Flon's Law

  3. #3
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    Oh! I see the problem! Well, my compiler just now pointed out that I had x uninitialized. I didn't get any errors, but I did get that one warning. I'll check back when I fix it.

  4. #4
    C++まいる!Cをこわせ! Elysia's Avatar
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    I recommend you turn your warnings up to max and always pay heed to them! Good code doesn't have any warnings! Good luck.
    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.

  5. #5
    Cat without Hat CornedBee's Avatar
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    Well, that fixes one error.
    All the buzzt!
    CornedBee

    "There is not now, nor has there ever been, nor will there ever be, any programming language in which it is the least bit difficult to write bad code."
    - Flon's Law

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