1 files changed, 43 insertions, 0 deletions
diff --git a/src/fixed_string_iter/mod.rs b/src/fixed_string_iter/mod.rs
new file mode 100644
index 0000000..088f61f
--- /dev/null
+++ b/src/fixed_string_iter/mod.rs
@@ -0,0 +1,43 @@
+// Copyright 2024 Gabriel Bjørnager Jensen.
+//
+// This file is part of bzipper.
+//
+// bzipper is free software: you can redistribute
+// it and/or modify it under the terms of the GNU
+// Lesser General Public License as published by
+// the Free Software Foundation, either version 3
+// of the License, or (at your option) any later
+// version.
+//
+// bzipper is distributed in the hope that it will
+// be useful, but WITHOUT ANY WARRANTY; without
+// even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Less-
+// er General Public License along with bzipper. If
+// not, see <https://www.gnu.org/licenses/>.
+
+/// Iterator to a fixed string.
+pub struct FixedStringIter<const N: usize> {
+ pub(in crate) buf: [char; N],
+ pub(in crate) len: usize,
+
+ pub(in crate) pos: Option<usize>,
+}
+
+impl<const N: usize> Iterator for FixedStringIter<N> {
+ type Item = char;
+
+ fn next(&mut self) -> Option<Self::Item> {
+ let pos = self.pos.as_mut()?;
+
+ if *pos >= self.len { return None };
+
+ let item = self.buf[*pos];
+ *pos += 0x1;
+
+ Some(item)
+ }
+}