__rw_locale::_C_manage() uses mutex based __rw_atomic_preincrement() even if
platform supports the native atomic operations
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Key: STDCXX-792
URL: https://issues.apache.org/jira/browse/STDCXX-792
Project: C++ Standard Library
Issue Type: Bug
Components: 22. Localization
Affects Versions: 4.2.0, 4.1.4, 4.1.3, 4.1.2
Environment: All
Reporter: Farid Zaripov
Assignee: Farid Zaripov
Fix For: 4.2.1
In __rw_locale::_C_manage() (src/locale_body.cpp, line 808), the static
variable ginit declared as volatile, but __rw_atomic_preincrement() functions,
which are implemented using atomic operations, accepting the non-volatile
reference in parameter list. As a result the template version
__rw_atomic_preincrement<volatile long>() (which is implemented using mutex
object) is used.
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