Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question

What is a nested function? 

and what part in the following code is considered a nest function??

 

 

int main( )

{

            Begin:arraysize= readNum()

                        Ok=verifySize(arraySize)

                        if (ok==1)

                                    creatArray(array-size)

                        else

                                    Go to Begin

                        printArray(arraySize)

                        reverseArray(arraySize)

                        printArray (arraySize)          

}

// ------------------------------------------------------------

int  readNum()

{

            input an integer

            return the integer to main program

}

 

// ------------------------------------------------------------

int versifySize( int arraySize)

{

            if (0<arraySize< 20)

                        return 1

            else

                        return 0

}

 

// ------------------------------------------------------------

 

 

 

void createArray(int arraySize)

{

counter = 0

making_array: arrayEntry = readNum()

                        ok = checkNumPositive(arrayEntry)

                        if (ok == 1)

                                    validNum = divisibleBy3(arrayEntry)

                                    if (validNum==1)

                                                insert  arrayEntry into the array

                                                counter = counter + 1

                                    else

                                                go to making_array

                        else

                                    go to making_array

                        if (counter < arraySize)

                                    go to  making_array

}

 

// ------------------------------------------------------------

void reverseArray(int arraySize)

{

            head = first index of the array

            tail = last index of the array

swap:  if (head <=tail)

            {

              swap the content of head and tail (array[head] and array[tail] with each other

              increment the head value by one word

              decrement tail by one word

              go to swap

            }

}

 

// ------------------------------------------------------------

void printArray( int arraySize)

{

..

..

 

}

// ------------------------------------------------------------

int divisibleBy3(int arryEntry)

{

}

// ------------------------------------------------------------

int checkNumPositive(int arrayEntry)

{

}

 

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