[LLVMbugs] [Bug 11927] New: warn on uninitialized value passed by const reference

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=11927

             Bug #: 11927
           Summary: warn on uninitialized value passed by const reference
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C++
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: benny.kra at gmail.com
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified


int ref(const int&);

void test1() {
  int x;
  ref(x);
}

I think clang should warn about passing x uninitialized by const reference
here. "ref" can modify the value by casting the const away, but that's not
really something worth encouraging.

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