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This commit is contained in:
king6cong 2017-04-15 11:43:35 +08:00
parent f0ca5d4bad
commit 7c8ca80c81
1 changed files with 5 additions and 5 deletions
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10
src/libcore/iter/iterator.rs
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@ -2164,16 +2164,16 @@ pub trait Iterator {
}
}
/// Select an element from an iterator based on the given projection
/// Select an element from an iterator based on the given "projection"
/// and "comparison" function.
///
/// This is an idiosyncratic helper to try to factor out the
/// commonalities of {max,min}{,_by}. In particular, this avoids
/// having to implement optimizations several times.
#[inline]
fn select_fold1<I,B, FProj, FCmp>(mut it: I,
mut f_proj: FProj,
mut f_cmp: FCmp) -> Option<(B, I::Item)>
fn select_fold1<I, B, FProj, FCmp>(mut it: I,
mut f_proj: FProj,
mut f_cmp: FCmp) -> Option<(B, I::Item)>
where I: Iterator,
FProj: FnMut(&I::Item) -> B,
FCmp: FnMut(&B, &I::Item, &B, &I::Item) -> bool
@ -2186,7 +2186,7 @@ fn select_fold1<I,B, FProj, FCmp>(mut it: I,
for x in it {
let x_p = f_proj(&x);
if f_cmp(&sel_p, &sel, &x_p, &x) {
if f_cmp(&sel_p, &sel, &x_p, &x) {
sel = x;
sel_p = x_p;
}