pub trait Count<I> {
// Required method
fn count(&self, range: impl RangeBounds<usize>, value: I) -> usize;
}Expand description
計数クエリ。
Required Methods§
fn count(&self, range: impl RangeBounds<usize>, value: I) -> usize
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.