Implement midpoint for floating point types. Reviewed as https://reviews.llvm.org/D61014.
llvm-svn: 359184
diff --git a/libcxx/docs/FeatureTestMacroTable.rst b/libcxx/docs/FeatureTestMacroTable.rst
index 4d3b079..0748c4c 100644
--- a/libcxx/docs/FeatureTestMacroTable.rst
+++ b/libcxx/docs/FeatureTestMacroTable.rst
@@ -188,6 +188,8 @@
------------------------------------------------- -----------------
``__cpp_lib_generic_unordered_lookup`` *unimplemented*
------------------------------------------------- -----------------
+ ``__cpp_lib_interpolate`` ``201902L``
+ ------------------------------------------------- -----------------
``__cpp_lib_is_constant_evaluated`` ``201811L``
------------------------------------------------- -----------------
``__cpp_lib_list_remove_return_type`` *unimplemented*