String character removal

This is a discussion on String character removal within the C++ Programming forums, part of the General Programming Boards category; Hi, I know how to remove certain characters from a string by using something like this: Code: string str ("Hello ...

  1. #1
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    String character removal

    Hi,

    I know how to remove certain characters from a string by using something like this:

    Code:
    string str ("Hello world!");
    erase (0, 6);
    That's great if I want to do that manually, but say if someone entered a string, how would I automatically remove every other character they entered? Sorry if this is a poor explanation, but I hope someone can help me.

    -Joe

  2. #2
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    Going to guess this is for an assignment. I am also going to guess that your class just taught you about loops. So... think of an implementation with loops that will remove every other character.

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    Unfortunately my school doesn't teach programming, stuck doing it alone. But thanks for the advice

  4. #4
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    Ah, well then here is some reading for you sir to help you in your learning

    For loops:
    for loop - cppreference.com

    While loops:
    while loop - cppreference.com

    do-while loops:
    do-while loop - cppreference.com

    You can use any of these 3 to easily accomplish your goal here. I am not trying to be rude, I'm trying to help you without flat out giving you the answer.

    Also for general reference:
    C++ reference - cppreference.com

  5. #5
    Registered User cstryx's Avatar
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    For a quick and easy strategy, use the STL to your advantage. The <algorithm> header is one of my favorites: remove_if - C++ Reference

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