Re: string and strstream and setw

[Maurizio Loreti]

address@hidden (Georg Ritter) writes:

> Hi, 
> 
> wrong behavior: 
> When trying to align strings (<string>) with ios::manipulaltors they
> aren't:
> 
> #include <string>
> #include <strtream>
> #include <iomanip>
> #include <iostream>
> 
> int main()
> {
> ostrstream a, b;
> string str1("one");
> string str2("two");
> 
>       a.setf( ios::right );
>       b.setf( ios::right );
> 
>       a << setw(20) << str1 << setw(20) << str2 << endl;
>       b << setw(20) << str1.c_str() << setw(20) << str2.c_str() << endl;
> 
>       cout << "This does not work" << endl;
>       cout << a;
> 
>       cout << "This does: " << endl;
>       cout << b;
> 
>       return 0;
> }
> 
> On an HP the code produces:
> This does not work
>                  one                 two
> This does: 
>                  one                 two

Your example works perfectly with the g++ developement version
(20010205 snapshot), after:

- having replaced the non-standard header <strtream> with the standard
  one <sstream>;

- having qualified all symbols belonging to namespace std, i.e. having
  changed string to std::string, endl to std::endl, and so on;

- having changed the declaration of a and b to the standard type
  std::ostringstream from the non-standard one ostrstream;

- having changed "cout << a;" to "std::cout << a.str();", assuming you
  want the content of the string stream and not its address in memory;

- having changed in the same way "cout << b;".

Hope that helps,        M.

-- 
Maurizio Loreti                         http://www.pd.infn.it/~loreti/mlo.html
Univ. of Padova, Dept. of Physics - Padova, Italy            address@hidden

The instructions said to use Windows 98 or better - so I installed FreeBSD.