[STDCXX-2] [MSVC] std::num_put bad formatting of 0.0 with precision and showpoint

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.1.2, 4.1.3, 4.1.4, 4.2.0
• Fix Version/s: 4.2.1
• Component/s: 22. Localization

Environment

Windows/MSVC

• Severity: Incorrect Behavior
• Assignee: Farid Zaripov
• Reporter: Martin Sebor
• Created: 27/Jul/05 01:20
• Updated: 02/May/13 02:29
• Resolved: 14/Mar/08 20:13

Description

When compiled with MSVC (any version), the program below aborts at runtime.

 
$ cat t.cpp && cl  -D_RWCONFIG=11s_msvc_7_1 -Ic:/contrib/cygwin/build/sebor/dev-hal/include -I./../../../../include -Ic:/contrib/cygwin/build/sebor/dev-hal/examples/stdlib/manual/../include  -Ic:/contrib/cygwin/build/sebor/dev-hal/include/ansi -I./../../../..
-Ic:/contrib/cygwin/build/sebor/dev-hal -Ic:/contrib/cygwin/build/sebor/dev-hal/examples/stdlib/manual -I. -nologo -GX -MLd -W3 -Zi -GA -GR -GF -GZ  -c t.cpp && link  -nologo /NODEFAULTLIB:libcpd /debug /LIBPATH:./../../../../lib /OUT:t.exe t.obj  std11s_msvc_7_1.lib user32.lib t.cpp && ./t.exe

#include <cassert>
#include <sstream>

int main ()
{
    std::ostringstream strm;

    strm.setf (strm.showpoint);
    strm.precision (2);

    strm << 0.0;

    assert ("0.0" == strm.str ());
}

Assertion failed: "0.0" == strm.str (), file t.cpp, line 13

Issue Links

• depends upon: STDCXX-496 [MSVC 7.1] printf("%#.2g", 0.0) incorrect output
• is duplicated by: STDCXX-497 [MSVC 7.1] std::num_put bad formatting of 0.0 with precision and showpoint
• is related to: STDCXX-51 infinity, NaN formatted differently on different platforms