Removing parts of a string...

This is a discussion on Removing parts of a string... within the C++ Programming forums, part of the General Programming Boards category; How do i remove a character from a string by using it's position? In my encryption algorithm it has to ...

  1. #1
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    Removing parts of a string...

    How do i remove a character from a string by using it's position?

    In my encryption algorithm it has to pad the data if it is not a factor of the 128-bit block size. I want to remove the padding in the decryption but it will not let me do this:
    Code:
    ...
    string.at(i) = "";
    ...
    I know there's an .erase() function but i dont know if that's the way to do it.


    Thanks for the help!
    "Anyone can aspire to greatness if they try hard enough."
    - Me

  2. #2
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    I believe erase takes an iterator. If so, and you only have a position, just add the position to the begin() iterator:
    Code:
    str.erase(str.begin() + i);
    There might be better options if you are erasing multiple characters or erasing from the end of the string.

  3. #3
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    Dankeschon!

    Works grrrreaaaaaaattttttt!

    Thanks for the help!
    "Anyone can aspire to greatness if they try hard enough."
    - Me

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