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cooldumb
cooldumb asked in Computers & InternetProgramming & Design · 1 decade ago

what does if(!var)means in c?

4 Answers

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  • Collin H
    Lv 4
    1 decade ago
    Favorite Answer

    The '!' character is a logical NOT operator. In C, if var is an integer, it will evaluate to false if it is 0, true otherwise. The ! character basically reverses the boolean value of what it is applied to.

    In this case, it means the code in the if statement's block will be executed when var evaluates to false.

  • J.J.'s Advice / Avis de J.J.
    Lv 7
    1 decade ago

    It's equivalent to writing if(var == false)

  • Phoenix One UK
    1 decade ago

    var would stand for a variable. The '!' preceding it refers to NOT condition. The statement is saying that if the variable is not equal to condition being examined do not execute that portion of code.

  • Helpful Harry
    Lv 7
    1 decade ago

    If not var

    Var would be the name of a variable.

    So if var is a boolean = True then the statement would be

    If not(True) then

    ...

    Dane

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