std: Forward ExactSizeIterator::is_empty for Args, ArgsOs iterators

2016-12-03 21:59:00 +01:00
parent dd3e63aea5
commit 7ba762253c
2 changed files with 3 additions and 0 deletions
--- a/src/libstd/lib.rs
+++ b/src/libstd/lib.rs
@@ -250,6 +250,7 @@
 #![feature(core_float)]
 #![feature(core_intrinsics)]
 #![feature(dropck_parametricity)]
+#![feature(exact_size_is_empty)]
 #![feature(float_extras)]
 #![feature(float_from_str_radix)]
 #![feature(fn_traits)]