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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:20:39 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:20:39 +0000 |
commit | 1376c5a617be5c25655d0d7cb63e3beaa5a6e026 (patch) | |
tree | 3bb8d61aee02bc7a15eab3f36e3b921afc2075d0 /library/core/src/iter/adapters/fuse.rs | |
parent | Releasing progress-linux version 1.69.0+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-1376c5a617be5c25655d0d7cb63e3beaa5a6e026.tar.xz rustc-1376c5a617be5c25655d0d7cb63e3beaa5a6e026.zip |
Merging upstream version 1.70.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'library/core/src/iter/adapters/fuse.rs')
-rw-r--r-- | library/core/src/iter/adapters/fuse.rs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/library/core/src/iter/adapters/fuse.rs b/library/core/src/iter/adapters/fuse.rs index c93144542..b1fa4f921 100644 --- a/library/core/src/iter/adapters/fuse.rs +++ b/library/core/src/iter/adapters/fuse.rs @@ -181,6 +181,21 @@ where } } +#[stable(feature = "default_iters", since = "1.70.0")] +impl<I: Default> Default for Fuse<I> { + /// Creates a `Fuse` iterator from the default value of `I`. + /// + /// ``` + /// # use core::slice; + /// # use std::iter::Fuse; + /// let iter: Fuse<slice::Iter<'_, u8>> = Default::default(); + /// assert_eq!(iter.len(), 0); + /// ``` + fn default() -> Self { + Fuse { iter: Default::default() } + } +} + #[unstable(feature = "trusted_len", issue = "37572")] // SAFETY: `TrustedLen` requires that an accurate length is reported via `size_hint()`. As `Fuse` // is just forwarding this to the wrapped iterator `I` this property is preserved and it is safe to |