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/*
27 Feb 2019
Matthew Strapp
5449340
EE1301
Spring 2019
Homework 3C
Character Detection
*/
#include <iostream>
#include <stdlib.h>
#include <cmath>
#include <iomanip>
using namespace std;
void swapCase(char s);
int main() {
char character;
do { //This loops until '@' is entered
cout << "Please enter a character that is an ASCII letter in the range [A-Za-z]: ";
cin >> character;
if (character!='@') {
swapCase(character);
}
} while (character!='@');
}
// Function: swapCase
// ---------------------------
// Swaps the case of a latin ASCII character and prints an error if not one
// s: the character inputted
//Outputs: Nothing, the function just outputs the response
void swapCase(char s) {
char New;
cout << "You entered " << s;
if ( (s >= 'a' && s <= 'z') || (s >= 'A' && s <= 'Z') ) {
cout << ", I respond with ";
if (s >= 'A' && s <= 'Z') {
New = s + 32; //32 is the difference between capital and lowercase ASCII characters
} else {
New= s - 32;
}
cout << New;
} else {
cout << ", which is not a valid character.";
}
cout << endl;
}
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