Using the pseudo code below, write the code that will meet the requirements: Main Function
Declare the char variables for the 8 digits of the phone number
while true
Call the ReadDials function passing the 8 digits
by reference. ReadDials returns an error code by
value.
If the return value is -5, exit the do while loop
If the error code is -1, display the
error message "ERROR - An invalid character was entered".
If the error code is -2, display the
error message "ERROR - Phone number cannot begin with 0".
If the error code is -3, display the
error message "ERROR - Phone number cannot begin with 555".
If the error code is -4, display the
error message "ERROR - Hyphen is not in the correct position".
Otherwise, call the AcknowledgeCall function
End-While
ReadDials function
Input the first digit
If a Q was entered, return -5.
Input the rest of the phone number
Call the ToDigit function for each of the 7 digits
not for digit 4
If ToDigit returns -1, return -1
If digit 4 is not a hyphen, return -4.
If digit 1 is 0, return -2.
If digits 1 - 3 are 5, return -3
Otherwise, return 0
ToDigit function
Convert the digit to upper case
Use a switch statement to determine if the digit is valid
and convert the letters to digits
If the digit is invalid, return -1.
If the digit is valid, return 0.
AcknowledgeCall function
Display the Phone Number
this is what I got so far:
#include

using namespace std;

char ReadDials(char d1,char d2,char d3,char d4,char d5,char d6,char d7,char d8);//function prototype

ToDigit() function prototype
AcknowledgeCall() function prototype

int main()
{
char d1=0,d2=0,d3=0,d4=0,d5=0,d6=0,d7=0, d8=0;//declare variables for digits
cout<<"Enter digits, separated by a space.";
cin >> d1 >> d2 >> d3 >> d4 >> d5 >> d6 >> d7 >> d8;

while true
// Call the ReadDials function passing the 8 digits by reference. ReadDials returns an error code by value.
char ReadDials(d1,d2, d3, d4, d5, d6, d7, d8);//call ReadDials
char ReadDials(char d1, char d2, char d3, char d4, char d5, char d6, char d7, char d8);

if the return value is -5, exit the do while loop
if the error code is -1, display the error message "ERROR - An invalid character was entered";
if the error code is -2, display the error message "ERROR - Phone number cannot begin with 0";
if the error code is -3, display the error message "ERROR - Phone number cannot begin with 555";
if the error code is -4, display the error message "ERROR - Hyphen is not in the correct position";
if(d1=='Q'||'q')
return -5;

// Otherwise, call the AcknowledgeCall function
End-While

return 0;
}

//ReadDials function
char ReadDials(char d1, char d2, char d3, char d4, char d5, char d6, char d7, char d8);
{
cout<<"Enter first digit."< if a Q was entered, return -5;
cout<<"Enter the rest of the number."< // Call the ToDigit function for each of the 7 digits, not for digit 4
if ToDigit returns -1, return -1;
if digit 4 is not a hyphen, return -4;
if digit 1 is 0, return -2;
if digits 1 - 3 are 5, return -3;
return 0
}

ToDigit function
{
// Convert the digit to upper case
switch(c)
{
case '0': cout<< result+="0"; break;
case '1': cout<< result+="1"; break;
case '2': cout<< case 'a': case 'b': case 'c': result+="2"; break;
case '3': cout< case '4':cout<< case 'g': case 'h': case 'i': result+="4"; break;
case '5': cout< case '6':cout<< case 'm': case 'n': case 'o': result+="6"; break;
case '7': cout< case '8': cout< case '9': cout<
}

if the digit is invalid, return -1;
if the digit is valid, return 0;
}

AcknowledgeCall function
{
Display the Phone Number.
}
return 0;
}