[llvm-bugs] [Bug 28676] New: -Wshadow doesn't warn on shadowed 'using' statements. Gcc does.

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=28676

            Bug ID: 28676
           Summary: -Wshadow doesn't warn on shadowed 'using' statements.
                     Gcc does.
           Product: clang
           Version: 3.8
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: xaxxon at gmail.com
                CC: dgregor at apple.com, llvm-bugs at lists.llvm.org
    Classification: Unclassified

using Foo=int; 
int i;
int main(){
  using Foo=char; // <== clang doesn't warn about this, gcc does
  int i;
}

gcc catches both:  https://godbolt.org/g/6heXBO

clang 3.8 doesn't warn on the shadowed 'using': https://godbolt.org/g/zTgIDn

Tested with every version of clang on godbolt down to 3.3 (lower was broken)
and got the same behavior on each version of clang.

gcc seems to catch both on every version that supports c++11.

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