Solaris10/Studio11 purify UMR error in std::string concat
SunOS taurus 5.10 Generic_118833-23 sun4v sparc SUNW,Sun-Fire-T1000 Solaris
CC: Sun C++ 5.8 Patch 121017-08 2006/12/06
purify Version 7.0 Solaris 2
libCstd is patched with patch 119963-08.
Is there anything to be done about the following purify error?
#include <string>
int main()
{
std::string horse = "horse";
std::string animals = horse + "cat";
return 0;
}
> CC -c -g -xarch=v9 concatTest.cpp -o concatTest.o
> purify CC -v -g -xarch=v9 concatTest.o -o concatTest_p
> ./concatTest_p
Finished concatTest_p (1 error, 0 leaked bytes)
Purify instrumented /work/jess/dev/trunk/marketbank/foundation/base/test/concatTest_p (pid 26319 at Thu Feb 1 11:04:37 2007)
Command-line: ./concatTest_p
UMR: Uninitialized memory read
This is occurring while in:
std::basic_string<char,std::char_traits><char>,std::allocator<ch ar> >std::basic_string<char,std::char_traits><char>,std::allocator&l t;char> >::__sun_concat(const char*)const [/usr/lib/sparcv9/libCstd.so.1]
std::basic_string<__type_0,__type_1,__type_2>std::operator+<char,std:: char_traits><char>,std::allocator<char> >(const std::basic_string<__type_0,__type_1,__type_2>&,const __type_0*) [/work/jess/dev/trunk/marketbank/foundation/base/test/concatTest.o]
main[/work/jess/dev/trunk/marketbank/foundation/base/test/concatTest.cpp:5]
_start [/packages/sunpro/prod/lib/v9/crt1.o]
Reading 8 bytes from 0xffffffff7fffedd0 on the stack.
Address 0xffffffff7fffedd0 is32 bytes below frame pointer in function std::basic_string<char,std::char_traits><char>,std::allocator<ch ar> >std::basic_string<char,std::char_traits><char>,std::allocator&l t;char> >::__sun_concat(const char*)const.
Current file descriptors in use: 15
Memory in-use: 0 bytes (0% of total allocated)
Memory leaked: 0 bytes (0%); potentially leaked: 0 bytes (0%)
Thread Summary : 1 thread(s) in existence
Program exited with status code 0.
