How do i include white space in my Caesar Cipher program in C++?

Question

Ok so last time I asked for help on this program because I could not convert characters to DEC and add to it. I finally got it to work thanks to some advice that was given, it's almost complete.

 #include <iostream>
 using namespace std;

int main()
{
char word[128];
int x = 0;
int v;
int shift;
int sv;

cin >> shift;
cin >> word;



while (word[x] !='\0')    // While the string isn't at the end... 
{

    v = int(word[x]);


    sv = v + shift;


    x++;

   cout<< static_cast<char>(sv);

}



return 0;
}

However i have no idea how to get it to accept white spaces using

isspace

Can yall help me?

@ThomasMatthews that won't help with a `char` array as argument to `operator>>()`. — Swordfish, Aug 31 '18 at 23:10

score 0 · Accepted Answer · answered Sep 01 '18 at 01:30

getline in string might be your friend in this case. here is your code but fixed up to use that.

#include <string>

int rotMain()
{
  //char word[128];
  string word;
  int x = 0;
  int v;
  int shift;
  int sv;

  cin >> shift;
  getline(cin, word);

  while (word[x] != '\0')    // While the string isn't at the end... 
  {
    v = int(word[x]);
    sv = v + shift;
    x++;
    cout << static_cast<char>(sv);
  }
  return 0;
}

you're doing a few other things that are a little strange here, like you're not taking the modulus of any of your characters so, for example 'Z' rotated by 1 will be '[', but this might be by design? Also suggest iterating over the string using standard iterators, but if you're just learning don't worry about any of that for now!

Thank you so much, yeah this is way better. I'll look over my code, have not had much practice — Lisandro Garcia Martinez, Sep 01 '18 at 04:11

How do i include white space in my Caesar Cipher program in C++?

1 Answers1