C-Basic/postfixAndPrefix.txt at master · DeveloperNA/C-Basic · GitHub

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postfix operator:

    A postfix operator is a unary operator which works only on single operand to increment or decrement value of an operand.

    It does the operation only when the statement gets terminated.

    For example,
        k = i++     // Directly assigns i value to k and after assignment i is incremented.
        y = x++ * 10    // the current value of x is multiplied with 10 and after assignment x is incremented.
        q = p-- / 3     // the current value of p is divided by 3 and after assignment p is decremented.


Prefix operator:

    A prefix operator is a unary operator which is similar to postfix in use but it does the increment/decrement operation first.

    It does the operation before the value of operand is used in an expression.

    For example,
        k = ++i;    // i is incremented and assigned
        y = ++x * 10    // x is incremented and that value is multiplied with 10 and assigned
        q = --p / 3     // p is decremented and that value is divided by 3 and assigned.