nested if else. can someone help me?

there's clearly something wrong with my if else statement.
i see that that values for letter and message.at(m) are updating but no dice on my translation stings.
disregard clunkyness


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#include <iostream>
#include <string>
using namespace std;

int main()

{
char input;

string message, customer, street, city, state, zip, translation;

int count;
double cost=0;


cout << "welcome to Western Union Telegraph Company." << endl;
cout << "1 - Process Telegram Bill" << "\n2 - Translate to Morse Code" << endl;

cin >> input;

cout<< endl;

switch (input)

	{
		case '1': 
		cout <<endl<< "\nEnter the name of the customer:";
				cin.ignore();
				getline(cin,customer);
		
				cout << "\nEnter street address: ";
				getline(cin,street);
				
				cout << "\n Enter city: ";
				cin >> city;
				
				cout << "\nEnter state: ";
				cin >> state;
				
				cout << "\nEnter zip code: ";
				cin >> zip;
				
				cout << "\nEnter number of words sent: ";
				cin >> count;
				
				
				cout << customer << endl << street << endl << city << ", " << state << " " << zip << endl << "amount owed: $" << cost;
				
		break;
				
		case '2': cout << "enter your message: ";
				cin.ignore();
				getline(cin,message);
				int m;
				char letter;
			for (m = 0; m < message.length(); m++)
			{
			letter = message.at(m);
				if (letter == 'A' || 'a')				
				{
				translation = ". -";
		 		}
				else if (letter == 'B' || 'b')
				{
				translation = "- …";
				}
				else if (letter == 'C' || 'c')
				{
				translation = "- . - .";
				}
				else if (letter == 'D' || 'd')
				{
				translation = "- . .";
				}
				else if (letter == 'E' || 'e')
				{
				translation = ".";
				}
				else if (letter == 'F' || 'f')
				{
				translation = ". . - .";
				}
				else if (letter == 'G' || 'g')
				{
				translation = "- - .";
				}
				else if (letter == 'H' || 'h')
				{
				translation = ". . . .";
				}
				else if (letter == 'I' || 'i')
				{
				translation = ". .";
				}
				else if (letter == 'J' || 'j')
				{
				translation = ". - - -";
				}
				else if (letter == 'K' || 'k')
				{
				translation = "- . -";
				}
				else if (letter == 'L' || 'l')
				{
				translation = ". - . .";
				}
				else if (letter == 'M' || 'm')
				{
				translation = "- - ";
				}
				else if (letter == 'N' || 'n')
				{
				translation = "- .";
				}
				else if (letter == 'O' || 'o')
				{
				translation = "- - -";
				}
				else if (letter == 'P' || 'p')
				{
				translation = ". - - .";
				}
				else if (letter == 'Q' || 'q')
				{
				translation = "- - . -";
				}
				else if (letter == 'R' || 'r')
				{
				translation = ". - .";
				}
				else if (letter == 'S' || 's')
				{
				translation = ". . .";
				}
				else if (letter == 'T' || 't')
				{
				translation = "-";
				}
				else if (letter == 'U' || 'u')
				{
				translation = ". . -";
				}
				else if (letter == 'V' || 'v')
				{
				translation = ". . . -";
				}
				else if (letter == 'W' || 'w')
				{
				translation = ". - -";
				}
				else if (letter == 'X' || 'x')
				{
				translation = "- . . -";
				}
				else if (letter == 'Y' || 'Y')
				{
				translation = "- . - -";
				}
				else if (letter == 'Z' || 'z')
			 	{
				translation = "- - . .";
		  		}
		  		else { translation = message.at(m);
				}

				cout<< m << message.at(m)<<translation << letter<< "//"; 
			}
	
			cout<< " your message " << message << " translates to " << translation;
		
		break;
		
		case '3':
		
		break;
		
		default: cout << "ERROR, invalid user entry.";
		
	}

 
return 0;

}
if (letter == 'A' || 'a')

Hi that code doesn't do what you think it does.

It should be :

if (letter == 'A' || letter == 'a')

But even better, convert each letter into uppercase, and only have one comparison. There is a toupper function.

Some other ideas:

Each case of the
switch
should call it's own function. Maybe you haven't done functions yet?
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