[LLVMbugs] [Bug 11863] New: attribute((nonnull)) not checked on c++ operators

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu Jan 26 12:48:08 PST 2012


http://llvm.org/bugs/show_bug.cgi?id=11863

             Bug #: 11863
           Summary: attribute((nonnull)) not checked on c++ operators
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: nlewycky at google.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Testcase:

  struct foo {};
  bool operator!=(const foo &, void *) __attribute__((nonnull(2)));
  bool test(const foo &f) {
    return f != 0;
  }

nlewycky at ducttape:~$ g++ str2.cc -fsyntax-only -Wall
str2.cc: In function ‘bool test(const foo&)’:
str2.cc:6: warning: null argument where non-null required (argument 2)

vs.

nlewycky at ducttape:~$ clang++ str2.cc -fsyntax-only -Wall
nlewycky at ducttape:~$

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