TITLE: Converting integers to ascii using streams


PROBLEM: wenger@cis.ohio-state.edu (Rephael Wenger)

The following program converts integers to text using the strstream
class.  Note the second time around I have to reset the buffer pointer
and add a NULL character to terminate the string.  The whole thing
seems rather awkward.  Is there a better way?  

[Repheal's code omitted...]


RESPONSE: rmartin@thor.Rational.COM (Bob Martin), 16 Mar 93

Yes, try the following.  Note the use of ends to put the NULL at the
end of the string.


#include <iostream.h>
#include <strstream.h>

void itob(char* buf, int n, int i)
{
  ostrstream o(buf, n);
  o << i << ends;
}

void main()
{
    char buf[20];
    for (int i=0; i<10; i++)
    {
	itob(buf, 20, i);
	cout << buf << endl;
    }
}