NFC. Move definition of _LIBCPP_ASSERT into __debug header and remove external include guards.
Things done in this patch:
1. Make __debug include __config since it uses macros from it.
2. The current method of defining _LIBCPP_ASSERT is prone to redefinitions. Move
the null _LIBCPP_ASSERT definition into the __debug header to prevent this.
3. Remove external <__debug> include gaurds. <__debug> guards almost all of its
contents internally. There is no reason to be doing it externally.
This patch should not change any functionality.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@215332 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/experimental/optional b/include/experimental/optional
index 3848da8..41d86b4 100644
--- a/include/experimental/optional
+++ b/include/experimental/optional
@@ -151,11 +151,7 @@
#include <__undef_min_max>
-#ifdef _LIBCPP_DEBUG
-# include <__debug>
-#else
-# define _LIBCPP_ASSERT(x, m) ((void)0)
-#endif
+#include <__debug>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header