Bug report g++: setw() for doubles

[Bernd Feucht]

Bug report for the g++ compiler

I'm currently using gcc version 2.95.2 19991024 (release).

The setw()-manipulator does not work properly for the output of double
numbers.

For testing I tried the following program:

     #include <iostream.h>
     #include <iomanip.h>

     int main()
     {
       cout << setw(10) << 1.1 << setw(10) << 2.2 << endl;
       return 0;
     }

As far as I know the C++ specification, this program should type out:

     "       1.1       2.2"

i.e. seven spaces before each double number to make the total length of
each output 10 characters long.
Instead, the output of the program above is:

     "1.12.2"

i.e. the two numbers 1.1 and 2.2 without any spaces ahead.

The same program works well when I replace the double numbers by
integers or ""-enclosed strings. I does not work with ''-enclosed
characters (but that, I think, is normal, because the length of a
character is always one, so a field-length-manipulator is not really
needed).

If the above problem has already been fixed in a gcc version later than
2.95.2, please let me know.

As far as I remember, outputs of double numbers with the
setw()-manipulator were no problem in earlier releases of gcc. I noticed
the above stated problem when I recompiled a program written one year
ago (I don't remember with which gcc version, but I think it was
included in SuSE 7.0) with gcc version 2.95.2.

Greetings,
Bernd Feucht