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std: Forward ExactSizeIterator::is_empty for Args, ArgsOs iterators

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Ulrik Sverdrup 2016-12-03 21:59:00 +01:00
parent dd3e63aea5
commit 7ba762253c
2 changed files with 3 additions and 0 deletions
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2
src/libstd/env.rs
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@ -630,6 +630,7 @@ impl Iterator for Args {
#[stable(feature = "env", since = "1.0.0")]
impl ExactSizeIterator for Args {
fn len(&self) -> usize { self.inner.len() }
fn is_empty(&self) -> bool { self.inner.is_empty() }
}
#[stable(feature = "env_iterators", since = "1.11.0")]
@ -649,6 +650,7 @@ impl Iterator for ArgsOs {
#[stable(feature = "env", since = "1.0.0")]
impl ExactSizeIterator for ArgsOs {
fn len(&self) -> usize { self.inner.len() }
fn is_empty(&self) -> bool { self.inner.is_empty() }
}
#[stable(feature = "env_iterators", since = "1.11.0")]