array multiplication odd output

This is a discussion on array multiplication odd output within the C++ Programming forums, part of the General Programming Boards category; So I have an array : isbn[20][20] and then i input : 978-0-306-4061 then i try to multiply the first ...

  1. #1
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    array multiplication odd output

    So I have an array : isbn[20][20]

    and then i input : 978-0-306-4061

    then i try to multiply the first character, 9, by one :

    s = isbn[0][0] * 1;

    and instead of 9 i get.. 56.. i don't get why.

    Any ideas?

    Thanks

  2. #2
    Registered User hk_mp5kpdw's Avatar
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    The ascii value for the representation of the char '9'. (Although according to asciitable.com it's 57 not 56).

    If you want to convert that to the numeric value of 9 then you'd need to subtract char '0' first.
    "Owners of dogs will have noticed that, if you provide them with food and water and shelter and affection, they will think you are god. Whereas owners of cats are compelled to realize that, if you provide them with food and water and shelter and affection, they draw the conclusion that they are gods."
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    ah yes, you're right its actually 57. so there's no way of just normally adding or subtracting array values?

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