Fix invalid casts in <functional>.
static_cast of a pointer to object before the start of the object's
lifetime has undefined behavior.
This code triggers CFI warnings.
This change replaces C-style casts with reinterpret_cast, which is
fine per the standard, add applies an attribute to silence CFI (which
barks on reinterpret_cast, too).
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@260441 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/__config b/include/__config
index 5921662..6926fb3 100644
--- a/include/__config
+++ b/include/__config
@@ -180,6 +180,12 @@
# endif
#endif // !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN)
+#if __has_attribute(__no_sanitize__)
+#define _LIBCPP_NO_CFI __attribute__((__no_sanitize__("cfi")))
+#else
+#define _LIBCPP_NO_CFI
+#endif
+
#ifdef _WIN32
// only really useful for a DLL
