Answer to Question #42159 in C++ for thabo Moletsane

Question

A palindrome is a word or phrase that reads the same forwards and backwards, character for character,disregarding punctuation, case or spaces. Some examples are "racecar", "madam,I'm Adam".Write a program that allows the user to input a word or phrase and then determines if it is a palindrome.The program should use a Boolean Function procedure named Palindrome that returns the value True when the word or phrase is a palindrome and the value False otherwise

Answer 1

//Answer on Question #42159 - Programming - C++ 
#include <algorithm>
#include <iostream>
#include <string>
#include <cctype>
using namespace std;
bool notIsalnum(int c) {
    return !::isalnum(c);
}
bool Palindrome(const string& phrase) {
    string s = phrase;
    s.erase(remove_if(s.begin(), s.end(), notIsalnum), s.end());
    transform(s.begin(), s.end(), s.begin(), ::toupper);
    return s == string(s.rbegin(), s.rend());
}
int main() {
    cout << "Input word or phrase: " << endl;
    string phrase;
    getline(cin, phrase);
    cout << "\"" << phrase << "\" is ";
    if (!Palindrome(phrase)) cout << "not ";
    cout << "a palindrome" << endl;
}