purify reports uninitialized memory read in _rw_fmtarray
--------------------------------------------------------
Key: STDCXX-596
URL: https://issues.apache.org/jira/browse/STDCXX-596
Project: C++ Standard Library
Issue Type: Improvement
Components: Test Driver
Reporter: Travis Vitek
Assignee: Travis Vitek
Priority: Minor
Fix For: 4.2.1
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).
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