[LLVMbugs] [Bug 21979] New: Add Clang C++ warning when non-trivial type parameter is passed by value but not changed in function

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=21979

            Bug ID: 21979
           Summary: Add Clang C++ warning when non-trivial type parameter
                    is passed by value but not changed in function
           Product: new-bugs
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: eugene.zelenko at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Hi!

I think will be good idea to introduce warnings for situations when non-trivial
type (of big size or with non-default copy constructor, for example, STL
container) parameter is passed by value but not changed in function (only const
methods are called), so in this case const reference should be used instead.

Eugene.

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