[LLVMbugs] [Bug 21156] New: Partial specialization after implicit/explicit instantiation of class template.
bugzilla-daemon at llvm.org
bugzilla-daemon at llvm.org
Sat Oct 4 06:10:11 PDT 2014
http://llvm.org/bugs/show_bug.cgi?id=21156
Bug ID: 21156
Summary: Partial specialization after implicit/explicit
instantiation of class template.
Product: clang
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: unassignedclangbugs at nondot.org
Reporter: ant.bikineev at gmail.com
CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
Classification: Unclassified
Created attachment 13137
--> http://llvm.org/bugs/attachment.cgi?id=13137&action=edit
Patch for this case
C++ [temp.class.spec]p.1 says, that:
"A partial specialization shall be declared before the first use of a class
template specialization that would make use of the partial specialization as
the result of an implicit or explicit instantiation in every translation unit
in which such a use occurs; no diagnostic is required."
GCC has diagnostic for this, while Clang just ignores it. I'm not sure,
probably Clang has its own politics in this case. I've attached a patch.
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