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Use next and next_back

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This commit is contained in:
varkor 2018-01-06 22:14:02 +00:00
parent c23d4500fd
commit 2d8334358a
1 changed files with 8 additions and 16 deletions
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24
src/libcore/iter/range.rs
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@ -253,10 +253,8 @@ impl<A: Step> Iterator for ops::Range<A> {
}
#[inline]
fn max(self) -> Option<A> {
if self.start != self.end {
Some(self.end.sub_one())
} else { None }
fn max(mut self) -> Option<A> {
self.next_back()
}
}
@ -376,24 +374,18 @@ impl<A: Step> Iterator for ops::RangeInclusive<A> {
}
#[inline]
fn last(self) -> Option<A> {
if self.start <= self.end {
Some(self.end)
} else { None }
fn last(mut self) -> Option<A> {
self.next_back()
}
#[inline]
fn min(self) -> Option<A> {
if self.start <= self.end {
Some(self.start)
} else { None }
fn min(mut self) -> Option<A> {
self.next()
}
#[inline]
fn max(self) -> Option<A> {
if self.start <= self.end {
Some(self.end)
} else { None }
fn max(mut self) -> Option<A> {
self.next_back()
}
}