[llvm-bugs] [Bug 37845] New: Do not warn for artificial expressions.

via llvm-bugs llvm-bugs at lists.llvm.org
Tue Jun 19 01:30:02 PDT 2018


            Bug ID: 37845
           Summary: Do not warn for artificial expressions.
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: zhonghao at pku.org.cn
                CC: dgregor at apple.com, llvm-bugs at lists.llvm.org

The code is as follow:

namespace std
 struct string


main(const int,
 const char * const * const)
 std::string x[0UL][0UL] =

 std::string y[0UL] =

 int z[0ul][0UL] =

 return 0;

It comes from a gcc bug report:

Indeed, a previous version of g++ produces a different warning message, but
users are not satisfied. As a result, g++ generates a new warning message.
However, clang++ accepts it without any warnings. Shall clang also add some
warning messages for this?

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