Write a function that accepts an integer parameter and returns its integer square root (if it exists). The function should throw an exception if it is passed an integer that is not a perfect square. Do not handle the exception in the function, but instead create the exception handler in main. Make the exception a new exception class which your program creates. Demonstrate the function with a driver program that passes the function the numbers 0 through 25, then prints whether or not the number is a perfect square. (A "perfect square" is a whole number whose square root is also a whole number.)

Check the explanation

Explanation:

#include

#include

#include / /Not sure about including math. h

using namespace std;

int sqrt4 (const int m)

{

int i=0;

const int q=0;

while ((i*i) < = m)

{

if (i*i==m)

{

q++;

return i;

}

else

{

i++;

}

}

if (q==0)

{

throw "not a perfect square!";

}

}

int M1 (int x) {

cout << "Number: " << x << endl;

x = sqrt (x);

cout << "Number's square root: " << x << endl;

return x;

}

void main () {

int y = 4; / / Program currently uses 4 in calculations

M1 (y);

}

See explaination

Explanation:

/ / Include the necessary header files.

#include

#include

#include

using namespace std;

/ / Definition of the function.

int square_root (int n)

{

/ / Check whether n is less than 0.

if (n < 0)

/ / Throw exception.

throw domain_error ("Supplied integer is negative!");

/ / check whether n is equal to 0;

else if (n = = 0)

/ / Throw 0.

throw 0;

/ / Declare a variable and assign value.

double squ_root = sqrt (n);

/ / / / Declare a variable and assign value.

int squ_root_int = (int) squ_root;

/ / compare values

/ / check whether the values are equal or not.

if (squ_root! = squ_root_int)

/ / Throw exception.

throw invalid_argument ("Supplied integer is not a perfect square!");

/ / return the value.

return squ_root_int;

}

/ / Declare the main function.

int main ()

{

/ / declare variables.

int n;

int squ_root;

/ / Prompt the user to enter the number.

cout << "Enter a number: ";

cin >> n;

/ / start the try block.

try

{

/ / call to the function.

squ_root = square_root (n);

/ / Display the statement on console.

cout << "Square root is " << squ_root << endl;

}

/ / start the catch block.

catch (domain_error e)

{

/ / Display the statement on console.

cout << "Error: " << e. what () << endl;

return - 1;

}

/ / Start the catch block

catch (int y)

{

/ / check whether y is equal to zero or not.

if (y = = 0)

{

/ / Display the statement on console.

cout << "Error: Supplied integer is zero!" << endl;

return - 2;

}

}

/ / Start the catch block

catch (invalid_argument e)

{

/ / Display the sstatement.

cout << "Error: " << e. what () << endl;

return - 3;

}

/ / Return the value.

return 0;

}