[STDCXX-496] [MSVC 7.1] printf("%#.2g", 0.0) incorrect output

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: External
• Assignee: Unassigned
• Reporter: Martin Sebor
• Created: 24/Jul/07 01:01
• Updated: 02/May/13 02:29

Description

Moved from Rogue Wave Bugzilla: http://bugzilla.cvo.roguewave.com/show_bug.cgi?id=1549

$ cat t.cpp && cl t.cpp && ./t.exe
#include <assert.h>
#include <stdio.h>
#include <string.h>

int main ()
{
char s [8];

sprintf (s, "%#.2g", 0.0);
assert (0 == strcmp ("0.0", s));
}
Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 13.10.3077 for
80x86
Copyright (C) Microsoft Corporation 1984-2002. All rights reserved.

t.cpp
Microsoft (R) Incremental Linker Version 7.10.3077
Copyright (C) Microsoft Corporation. All rights reserved.

/out:t.exe
t.obj
Assertion failed: 0 == strcmp ("0.0", s), file t.cpp, line 10

This application has requested the Runtime to terminate it in an
unusual way.
Please contact the application's support team for more information.

Issue Links

• is depended upon by: STDCXX-2 [MSVC] std::num_put bad formatting of 0.0 with precision and showpoint
• is depended upon by: STDCXX-497 [MSVC 7.1] std::num_put bad formatting of 0.0 with precision and showpoint