http://llvm.org/bugs/show_bug.cgi?id=13592
Bug #: 13592
Summary: std::is_convertible is incorrect for abstract type
Product: libc++
Version: unspecified
Platform: PC
OS/Version: All
Status: NEW
Severity: enhancement
Priority: P
Component: All Bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 9042
--> http://llvm.org/bugs/attachment.cgi?id=9042
Fixing is_convertible for abstract target types
`std::is_convertible<From, To>` should return false_type when `To` is an
abstract type.
However, for example,
struct abstract
{
virtual int f() = 0;
};
`std::is_convertible<abstract, abstract>` returns true_type.
This is because clang's __is_convertible_to intrinsic ignores the abstractness
(I filed PR13591 for clang).
Trivial patch attached.
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