http://llvm.org/bugs/show_bug.cgi?id=12940
Bug #: 12940
Summary: redundant error when redefining a function as deleted
Product: clang
Version: trunk
Platform: PC
OS/Version: Linux
Status: ASSIGNED
Keywords: quality-of-implementation
Severity: enhancement
Priority: P
Component: C++11
AssignedTo: dblaikie at gmail.com
ReportedBy: dblaikie at gmail.com
CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
Classification: Unclassified
Given:
void func() { }
void func() = delete;
Clang produces:
spec.cpp:2:6: error: redefinition of 'func'
void func() = delete;
^
spec.cpp:1:6: note: previous definition is here
void func() { }
^
spec.cpp:2:15: error: deleted definition must be first declaration
void func() = delete;
^
spec.cpp:1:6: note: previous declaration is here
void func() { }
^
Essentially the same diagnostic twice. Either we could simply suppress the
second diagnostic when we know the function is already defined (& thus we
already produced the first diagnostic), or suppress the first diagnostic when
the new definition is deleted and, possibly, make the "deleted definition must
be first" diagnostic have some more specific text for this case (based on the
same property as the first option: that there's already a definition)
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