add btree_set with std (#2444)

6be7eee7 · satellitex · Gavin Wood · b6d5f685 · 6be7eee7
Commit 6be7eee7 authored 5 years ago by satellitex Committed by Gavin Wood 5 years ago
--- a/substrate/core/sr-std/with_std.rs
+++ b/substrate/core/sr-std/with_std.rs
@@ -35,4 +35,5 @@ pub use std::result;

 pub mod collections {
 	pub use std::collections::btree_map;
+	pub use std::collections::btree_set;
 }