solved clang build error.

nixiz · nixiz · commit 91ebddbdfe2e · 2021-06-02T00:02:48.000+03:00
diff --git a/include/tracked/tracked.hpp b/include/tracked/tracked.hpp
@@ -29,7 +29,7 @@ class tracked_ptr final : public Options<typename Traits::exception_policy>... {
   }
 
   template<class _Dx2 = deleter_type, dtl::tracked_ptr_enable_default_t<_Dx2> = 0>
-  explicit constexpr tracked_ptr(nullptr_t) noexcept : my_pair(dtl::zero_then_variadic_args_t())
+  constexpr explicit tracked_ptr(std::nullptr_t) noexcept : my_pair(dtl::zero_then_variadic_args_t())
   {
   }
 

Original file line number	Diff line number	Diff line change
`@@ -29,7 +29,7 @@ class tracked_ptr final : public Options<typename Traits::exception_policy>... {`
`29`	`29`	`}`
`30`	`30`
`31`	`31`	`template<class _Dx2 = deleter_type, dtl::tracked_ptr_enable_default_t<_Dx2> = 0>`
`32`		`- explicit constexpr tracked_ptr(nullptr_t) noexcept : my_pair(dtl::zero_then_variadic_args_t())`
	`32`	`+ constexpr explicit tracked_ptr(std::nullptr_t) noexcept : my_pair(dtl::zero_then_variadic_args_t())`
`33`	`33`	`{`
`34`	`34`	`}`
`35`	`35`