[STDCXX-596] purify reports uninitialized memory read in _rw_fmtarray

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 4.2.0
• Fix Version/s: 4.2.1
• Component/s: Test Driver
• Patch Info: Patch Available
• Severity: Incorrect Behavior
• Assignee: Travis Vitek
• Reporter: Travis Vitek
• Created: 15/Oct/07 22:56
• Updated: 12/Nov/07 14:39
• Resolved: 12/Nov/07 14:39

Description

UMR: Uninitialized memory read:

• This is occurring while in thread 26262:
  int _rw_fmtarray<char>(FmtSpec const&, Buffer&, char const*, unsigned, int) [printf.cpp:2012]
  _rw_fmtstr(FmtSpec const&, Buffer&, char const*, unsigned) [printf.cpp:2373]
  _rw_fmtllong(FmtSpec const&, Buffer&, long long) [printf.cpp:1220]
  int rw_fmtinteger<long long>(FmtSpec const&, Buffer&, long long) [printf.cpp:1237]
  _rw_fmtinteger(FmtSpec*, unsigned, Buffer&, VarArgs*) [printf.cpp:1287]
  _rw_vasnprintf_c99(FmtSpec*, unsigned, Buffer&, VarArgs*) [printf.cpp:540]
• Reading 1 byte from 0xbfffe9f4 on the stack of thread 26262.
• Address 0xbfffe9f4 is 28 bytes past start of local variable "buffer" in function _rw_fmtllong(FmtSpec const&, Buffer&, long long).

• • • • Purify instrumented ./18_ilimits (pid 26262) ****
        UMR: Uninitialized memory read:
• This is occurring while in thread 26262:
  int _rw_fmtarray<char>(FmtSpec const&, Buffer&, char const*, unsigned, int) [printf.cpp:2012]
  _rw_fmtstr(FmtSpec const&, Buffer&, char const*, unsigned) [printf.cpp:2373]
  _rw_fmtllong(FmtSpec const&, Buffer&, long long) [printf.cpp:1220]
  int rw_fmtinteger<unsigned long long>(FmtSpec const&, Buffer&, unsigned long long) [printf.cpp:1237]
  _rw_fmtinteger(FmtSpec*, unsigned, Buffer&, VarArgs*) [printf.cpp:1370]
  _rw_vasnprintf_c99(FmtSpec*, unsigned, Buffer&, VarArgs*) [printf.cpp:540]
• Reading 1 byte from 0xbfffe9e1 on the stack of thread 26262.
• Address 0xbfffe9e1 is 9 bytes past start of local variable "buffer" in function _rw_fmtllong(FmtSpec const&, Buffer&, long long).