Answered: First, write a function which will ﬁnd…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

c++

First, write a function which will ﬁnd the sum of all elements of one-dimensional array:

2.0,4.0,6.0,8.0,10.0

declared and list initialized in main(). Then use a call by reference in main(), and display the value of the sum as the function’s return value.

Expert Solution

Step 1

Programming instructions:

Include necessary header files.
Declare and initialize the array.
Call the function display() and pass the array by reference.
In the function, calculate the sum of all elements in the array and return the sum.
Display the sum value returned by the function.

Step 2

Program:

#include <iostream>
using namespace std;

//Function definition
double display(double *p)
{
double sum=0;
for(int i=0;i<5;++i)
{
sum= sum + *p;
p++;
}
return sum;
}

//Main funtion
int main(){
//Array
double n[ ] = {2.0, 4.0, 6.0, 8.0, 10.0};
//Call the function
cout<<display(n);
return 0;
}

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