Omit size_hint::cautious when not allocating

2021-01-24 20:24:03 -08:00 · 2021-01-24 20:24:03 -08:00 · 74ca06662e
commit 74ca06662e
parent 38edb473de
1 changed files with 1 additions and 0 deletions
--- a/serde/src/private/size_hint.rs
+++ b/serde/src/private/size_hint.rs
@ -7,6 +7,7 @@ where
    helper(iter.size_hint())
 }

+#[cfg(any(feature = "std", feature = "alloc"))]
 #[inline]
 pub fn cautious(hint: Option<usize>) -> usize {
    cmp::min(hint.unwrap_or(0), 4096)