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-rw-r--r--src/libcore/str/mod.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libcore/str/mod.rs b/src/libcore/str/mod.rs
index f9d1902bea7..4584c26bebc 100644
--- a/src/libcore/str/mod.rs
+++ b/src/libcore/str/mod.rs
@@ -1965,6 +1965,7 @@ impl StrExt for str {
         self.find(pat)
     }
 
+    #[inline]
     fn split_at(&self, mid: usize) -> (&str, &str) {
         // is_char_boundary checks that the index is in [0, .len()]
         if self.is_char_boundary(mid) {