cp_library_rs/utils/
boolutil.rs

1//! boolから他の値への変換
2
3pub trait BoolUtil {
4    /// `true` → `"Yes"`，`false` → `"No"` に変換
5    fn yesno(&self) -> &'static str;
6    /// `true` → `"\n"`，`false` → `" "` に変換
7    fn endl(&self) -> &'static str;
8}
9
10impl BoolUtil for bool {
11    fn yesno(&self) -> &'static str {
12        if *self {
13            "Yes"
14        } else {
15            "No"
16        }
17    }
18    fn endl(&self) -> &'static str {
19        if *self {
20            "\n"
21        } else {
22            " "
23        }
24    }
25}