anagrams CPP

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

// function to check if 2 strings are anagrams or not
void check_anagram(string str1, string str2)
{
    // we create a boolean to denote if the strings are anagrams or not
    bool is_anagram = true;

    // making a copy of strings
    string s1 = str1;
    string s2 = str2;

    // removing all the white spaces
    str1.erase(remove(str1.begin(), str1.end(), ' '), str1.end());
    str2.erase(remove(str2.begin(), str2.end(), ' '), str2.end());



    // comparing lengths of the strings
    if(str1.size() != str2.size()){
        is_anagram = false;
    }else{

        // converting the string to lower
        transform(str1.begin(), str1.end(), str1.begin(),::tolower);
        transform(str2.begin(), str2.end(), str2.begin(),::tolower);

        // sorting the string characters and comparing if the resultant strings are the same
        sort(str1.begin(), str1.end());
        sort(str2.begin(), str2.end());

        if (!str1.compare(str2)){
            is_anagram = true;
        }else{
            is_anagram = false;
        }

    }

    // printing the results
    if(is_anagram){
        cout<<s1<<" and "<<s2<<" are Anagrams"<<endl;
    }else{
        cout<<s1<<" and "<<s2<<" are not Anagrams"<<endl;
    }
    return;
}

int main(){
    check_anagram("Mother In Law", "Hitler Woman");

    check_anagram("DORMITORY", "Dirty Room");

    check_anagram("ASTRONOMERS", "NO MORE STARS");

    check_anagram("Toss", "Shot");

    check_anagram("joy", "enjoy");

    check_anagram("HOST", "shot");

    check_anagram("repacks", "PaCkErs");

    check_anagram("LISTENED", "ENLISTED");

    check_anagram("NAMELESS", "salesmen");
}