Quick question

This is a discussion on Quick question within the C Programming forums, part of the General Programming Boards category; what does this mean? Code: if(somenumber == 0) { blah blah } if(!(somenumber%2)) { blah blah } else if(somenumber%2) { ...

  1. #1
    Registered User
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    Sep 2013
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    Quick question

    what does this mean?

    Code:
    if(somenumber == 0)
    {
        blah blah
    }
    if(!(somenumber%2))
    {
        blah blah
    }
    else if(somenumber%2)
    {
        blah blah
    }
    what does the ! in the parenthesis mean? i thought if statement should compare 2 variables.
    Last edited by Kevin Nguyen; 10-24-2013 at 09:10 PM.

  2. #2
    and the Hat of Guessing tabstop's Avatar
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  3. #3
    11DE784A SirPrattlepod's Avatar
    Join Date
    Aug 2013
    Posts
    485
    The general form of the if statement is

    if (expression)
    statement;

    Note that expression need not compare two values, the only thing that is checked is expression (or more correctly the result of the expression). If the expression evaluates to "true" (not zero) then statement is executed. So although expression might be used to compare two or more values it doesn't have to do so. The expression may even be a constant, e.g. if (1) statement;

  4. #4
    Registered User
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    Oct 2013
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    ! means not. Like if (True) and if(!true). Hope you get it.

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