cleaning the buffer

This is a discussion on cleaning the buffer within the C++ Programming forums, part of the General Programming Boards category; in my program i use a menu - to get the value for the menu i use getch();, after this ...

  1. #1
    Hamster without a wheel iain's Avatar
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    cleaning the buffer

    in my program i use a menu - to get the value for the menu i use getch();, after this i use cin<< to get data from the user, the only problem is the charcter left over form the getch is in the space to type data, i have tried lots of ways but cannot get rid of it - any ideas?
    Monday - what a way to spend a seventh of your life

  2. #2
    Registered User cody's Avatar
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    Hi,

    hmm memset() maybe?

    bye
    cody
    #include "reallife.h"

  3. #3
    Hamster without a wheel iain's Avatar
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    whats memset, i though that was something to do with memory allocation? how do i use that?
    Monday - what a way to spend a seventh of your life

  4. #4
    Registered User *pointer's Avatar
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    After you use the value from getch, call cin.ignore(). That will clear the input stream buffer so that you can read another value.
    pointer = NULL

  5. #5
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    If you KNOW there is only one char left in the buffer then use the syntax:

    cin.ignore();

    which uses the default partameters of 1 and newline char respectively. Otherwise, you can adjust at your discretion using the prototype:

    cin.ignore(int numberOfCharToIgnore, char terminatingChar);

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