c++/9880: setprecision() strange behaviour

c++/9880: setprecision() strange behaviour

[Alberto.Ribon]

>Number:         9880
>Category:       c++
>Synopsis:       setprecision()  strange behaviour
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Feb 27 17:26:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Alberto Ribon
>Release:        gcc 3.2 (and others...)
>Organization:
>Environment:
various:  Red Hat Linux 7.3   gcc 3.2
          SuSE    Linux 7.2   gcc 3.2 
          Red Hat Linux 7.3   gcc 2.95.2
          Red Hat Linux 7.3   gcc 2.96 
          Red Hat Linux 6.1   egcs 2.91.66
          SunOS 5.7           CC Sun WorkShop 6 update 1 C++ 5.2 Patch 109508-02   
          SunOS 5.7           CC Forte Developer 7 C++ 5.4 Patch 111715-02
         
>Description:
Using setprecision(n) with n>= 16 in a cout statement
causes an unexpected behaviour in following cout
statements (without explicit use of setprecision) 
under certain circumstances. Look at the attached code
sample.
>How-To-Repeat:
Just build and run it!
>Fix:
If you use  setprecision( n )  with  n <= 15 , or not
use setprecision at all (which means to use the default n=6)
then it's OK.
>Release-Note:
>Audit-Trail:
>Unformatted:
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