Which Clang warning is equivalent to Wzero-as-null-pointer-constant from GCC?

clang has this warning as of 5.0; I added it here http://llvm.org/viewvc/llvm-project?view=revision&revision=302247.

Clang doesn't support these kind of warnings (i.e., there's no -Wzero-as-null-pointer-constant equivalent in Clang). You can see it your self if you add -Weverything option (mind do it only for testing), which enables all Clang's warnings.

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