C++ string array slice

Question

How would I split an inputted string such as "one two three four five" into an array. currentyly I have this:

const int SIZE = 5;
string digit[SIZE];

cout << "Enter the five here:";
for(int i = 0; i < SIZE; i++)
{
    cout << i+1 << ")";
    getline(cin, digit[i]);
}

but as it stands, the user has to hit enter every time. How do I get it so when I call digit[1] for the example input above, I get two. Hopefully that makes sense, I would imagine there is some function to do this for you, but if there is really elementary way of doing it, that would probably benefit me best, I'm still learning. thx

R. Martinho Fernandes · Accepted Answer · 2011-09-20 20:59:36Z

4

If you want to read words separated by whitespace, you can take advantage of the fact that extracting a string from an input stream will stop at whitespace:

for(int i = 0; i < SIZE; i++)
{
    cout << i+1 << ")";
    cin >> digit[i];
}

answered Sep 20, 2011 at 20:59

R. Martinho Fernandes

236k73 gold badges444 silver badges518 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

hart929 Over a year ago

perfect - I don't know why that didn't occur to me. Thanks!

A. K. · Accepted Answer · 2011-09-20 21:04:05Z

0

well if you want to take all the 'five' in a single line you can do that also. and then you can use strtok() to split the string into five strings. see: http://www.cplusplus.com/reference/clibrary/cstring/strtok/

answered Sep 20, 2011 at 21:04

A. K.

39.3k17 gold badges59 silver badges106 bronze badges

2 Comments

R. Martinho Fernandes Over a year ago

strtok is nasty though. The use of global state can bite you.

George Gaál Over a year ago

strtok_r and strsep are much better than common strtok

George Gaál · Accepted Answer · 2011-09-20 21:14:52Z

0

You also may use getline function with 3 arguments. 3rd is delimiter.

 getline(cin, digit[i], ' ');

Of course, it isn't best way to read input from cin. But you can use such approach for splitting full string, which you've get from user.

edited Sep 20, 2011 at 21:14

answered Sep 20, 2011 at 21:09

George Gaál

1,26810 silver badges21 bronze badges

1 Comment

hart929 Over a year ago

that still takes place in the for loop correct? I tried it and the process stalls; it doesn't move on to the next task.

Collectives™ on Stack Overflow

C++ string array slice

3 Answers 3

1 Comment

2 Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

1 Comment

2 Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related