new clippy fixes from upgrade

Author: schlich

examples/demo.rs

@@ -39,7 +39,7 @@ fn main() -> reedline::Result<()> {
             history_session_id,
             Some(chrono::Utc::now()),
         )
-        .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, e))?,
+        .map_err(std::io::Error::other)?,
     );
     #[cfg(not(any(feature = "sqlite", feature = "sqlite-dynlib")))]
     let history = Box::new(FileBackedHistory::with_file(50, "history.txt".into())?);
@@ -195,9 +195,7 @@ fn main() -> reedline::Result<()> {
                 }
                 if buffer.trim() == "clear-history" {
                     let hstry = Box::new(line_editor.history_mut());
-                    hstry
-                        .clear()
-                        .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, e))?;
+                    hstry.clear().map_err(std::io::Error::other)?;
                     continue;
                 }
                 println!("Our buffer: {buffer}");

src/core_editor/line_buffer.rs

@@ -323,7 +323,7 @@ impl LineBuffer {
     fn at_end_of_line_with_preceding_whitespace(&self) -> bool {
         !self.is_empty() // No point checking if empty
         && self.insertion_point == self.lines.len()
-        && self.lines.chars().last().map_or(false, |c| c.is_whitespace())
+        && self.lines.chars().last().is_some_and(|c| c.is_whitespace())
     }
 
     /// Cursor position at the end of the current whitespace block.

src/painting/utils.rs

@@ -59,7 +59,7 @@ pub(crate) fn estimate_single_line_wraps(line: &str, terminal_columns: u16) -> u
     let terminal_columns: usize = terminal_columns.into();
 
     // integer ceiling rounding division for positive divisors
-    let estimated_line_count = (estimated_width + terminal_columns - 1) / terminal_columns;
+    let estimated_line_count = estimated_width.div_ceil(terminal_columns);
 
     // Any wrapping will add to our overall line count
     estimated_line_count.saturating_sub(1)