Learning to Program in C++

We All stream for strstream

Now it's time to get back to our discussion of strstream. A strstream (short for string stream) allows us to write data to its buffer and then read the resulting data back into a variable. An example is the program shown in Figure 9.20, which uses a strstream object to combine a year, month, and day number to make one string containing all of those values.

Figure 9.20. A strstream formatting example (code\stream2.cc)

A strstream is very similar to an ostream, except that once we have written data to a strstream, we can read it from the strstream into a variable just as though we were reading from a file or the keyboard. ...