[STDCXX-680] use_facet and has_facet are unreliable unless dynamic_cast is available

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 4.1.2, 4.1.3, 4.1.4, 4.2.0
• Fix Version/s: 4.2.2
• Component/s: 22. Localization
• Severity: Incorrect Behavior
• Assignee: Unassigned
• Reporter: Travis Vitek
• Created: 17/Dec/07 18:05
• Updated: 11/Jul/09 00:00

Description

The function that is called by has_facet<>() and use_facet<>() uses _RWSTD_DYNAMIC_CAST in an attempt to check that the returned locale facet is of the requested type. Unfortunately, if RTTI is not supported or enabled, that cast becomes unreliable.

Issue Links

• relates to: STDCXX-872 [XLC++ 7,8,9] unexpected assertions in 18.support.rtti.cpp
• relates to: STDCXX-664 [IBM XLC++ 9.0/AIX 5.3] SIGABRT in 22.locale.globals.mt