getline instead of cin>>

[kfaday]

i've got this code:

cout <<"insert a string: ";
std::string s;
cin>>s;

when i enter a string with spaces cin only records in s til the first space.

example:

insert a string: Hello world!

only hello is stored in s.

I've heard that the getline functions solves this. I read Eckel's thinking in c++ vol 2 but i couldn't understand how to use it. Would you mind telling me?
thanls!!

[tomcant]

For example:

string str1;
while(str1.empty())
{
    cout << "Enter a string: ";
    getline(cin, str1);
    cout << endl;
}

Hope that helps

[kfaday]

I ran the debugger and after getline(cin, str1); nothing is stored in str1

[tomcant]

#include <iostream>

using namespace std;

int main()
{
    string str1;
    while(str1.empty())
    {
        cout << "Enter a string: ";
        getline(cin, str1);
        cout << endl;
    }

    cout << str1;

    cin.get();
    return(0);
}

Does that work for you? It does for me.

[kfaday]

thanks!! the while (str1.empty()) did it

[nark]

you can also use the gets function, which I believe is in the string.h library. What gets does is get input from STDIN until a \n is encountered.

void main()
{

char buf[128];

gets(buf);

blah blah blah.......
}

[kasracer]

nark, he is not using C