[LLVMbugs] [Bug 22325] New: Explicitly defaulted function on first declaration with incompatible exception-specification should be defined as deleted

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=22325

            Bug ID: 22325
           Summary: Explicitly defaulted function on first declaration
                    with incompatible exception-specification should be
                    defined as deleted
           Product: clang
           Version: trunk
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++11
          Assignee: unassignedclangbugs at nondot.org
          Reporter: kaballo86 at hotmail.com
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified

V-ille reports the following snippet is incorrectly rejected:

    struct Defaulted {
      Defaulted(Defaulted&&) noexcept(false) = default;
      int mem;
    };

with the following error:

    prog.cc:2:3: error: exception specification of explicitly defaulted move
constructor does not match the calculated one Defaulted(Defaulted&&)
noexcept(false) = default;

The move constructor should not be ill-formed, but deleted. This is CWG1778,
exception-specification in explicitly-defaulted functions.

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