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Omit size_hint::cautious when not allocating

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David Tolnay 2021-01-24 20:24:03 -08:00
parent 38edb473de
commit 74ca06662e
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serde/src/private/size_hint.rs
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@ -7,6 +7,7 @@ where
helper(iter.size_hint()) helper(iter.size_hint())
} }
#[cfg(any(feature = "std", feature = "alloc"))]
#[inline] #[inline]
pub fn cautious(hint: Option<usize>) -> usize { pub fn cautious(hint: Option<usize>) -> usize {
cmp::min(hint.unwrap_or(0), 4096) cmp::min(hint.unwrap_or(0), 4096)