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Strings

 
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Strings
k0b13r
12 Apr, 2007 - 08:55 AM
Post #1

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Hi ! I need a little help with strings. In my program I write a text, and then 'for' loop move at every single char. But if there is a space in text, program crashes at empty char.... how can I prevent it?
My code, nothing much for now:
CODE

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

int main()
{
    int letter;
    string before, after;
    cin >> before;
    for(unsigned int i = 0; i < before.length(); i++)
    {
        letter = (int)before[i]+13;
        cout << (char)letter;
    }
    cout << endl;
}


And, yes, this will MAYBE be ROT13 algorithm implementation ;]
Thx for fast answers
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Amadeus
RE: Strings
12 Apr, 2007 - 08:57 AM
Post #2

g++ -o drink whiskey.cpp
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Are you sure it's crashing at a space? the >> operator will only take text as far as the first whitespace...it will not take anything after that.
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k0b13r
RE: Strings
12 Apr, 2007 - 08:59 AM
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Holy shit ! Fast answer.
Ok, so how can I "move around" whole text ?
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Amadeus
RE: Strings
12 Apr, 2007 - 09:01 AM
Post #4

g++ -o drink whiskey.cpp
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No, my point is you're not getting the whole text. Try your code with single word and see if it works. then try it with a string of multiple words. I think you'll find that only the first word makes it in.

If you want to take multiple words, you'll have to either overload the >> operator, or use something like the getline() function.
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k0b13r
RE: Strings
12 Apr, 2007 - 10:02 AM
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It works with single word. I need multiple words.
I'll try your hints. Thnx
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