Show that the capacity changed in HashSet::reserve doc example.

diff --git a/src/libstd/collections/hash/set.rs b/src/libstd/collections/hash/set.rs
index 040595bbb0426b364c4aadd1a9369b2073674c88..0e65a30f3b2a3554c47629fa0dcffd53ef218516 100644 (file)
--- a/src/libstd/collections/hash/set.rs
+++ b/src/libstd/collections/hash/set.rs
@@ -260,6 +260,7 @@ pub fn capacity(&self) -> usize {
     /// use std::collections::HashSet;
     /// let mut set: HashSet<i32> = HashSet::new();
     /// set.reserve(10);
+    /// assert!(set.capacity() >= 10);
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
     pub fn reserve(&mut self, additional: usize) {