[LLVMbugs] [Bug 19456] New: diagnose missing std::move calls

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=19456

            Bug ID: 19456
           Summary: diagnose missing std::move calls
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++11
          Assignee: unassignedclangbugs at nondot.org
          Reporter: richard-llvm at metafoo.co.uk
                CC: delesley at google.com, dgregor at apple.com,
                    llvmbugs at cs.uiuc.edu
    Classification: Unclassified

If we see:

  * a function that has a parameter `p` that is either of non-reference class
type `T` or of type `T &&`, and
  * `p` is only used once within the function definition, and
  * that use is as the argument to a function call, and
  * converting `p` from being an lvalue to being an xvalue would cause a
different overload to be selected

... then we should warn that the user probably meant to use `std::move(p)`.

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