--- /dev/null
+// run-rustfix
+
+#[warn(clippy::manual_range_contains)]
+#[allow(unused)]
+#[allow(clippy::no_effect)]
+#[allow(clippy::short_circuit_statement)]
+#[allow(clippy::unnecessary_operation)]
+fn main() {
+ let x = 9_u32;
+
+ // order shouldn't matter
+ (8..12).contains(&x);
+ (21..42).contains(&x);
+ (1..100).contains(&x);
+
+ // also with inclusive ranges
+ (9..=99).contains(&x);
+ (1..=33).contains(&x);
+ (1..=999).contains(&x);
+
+ // and the outside
+ !(8..12).contains(&x);
+ !(21..42).contains(&x);
+ !(1..100).contains(&x);
+
+ // also with the outside of inclusive ranges
+ !(9..=99).contains(&x);
+ !(1..=33).contains(&x);
+ !(1..=999).contains(&x);
+
+ // not a range.contains
+ x > 8 && x < 12; // lower bound not inclusive
+ x < 8 && x <= 12; // same direction
+ x >= 12 && 12 >= x; // same bounds
+ x < 8 && x > 12; // wrong direction
+
+ x <= 8 || x >= 12;
+ x >= 8 || x >= 12;
+ x < 12 || 12 < x;
+ x >= 8 || x <= 12;
+
+ // Fix #6315
+ let y = 3.;
+ (0. ..1.).contains(&y);
+ !(0. ..=1.).contains(&y);
+}
+
+// Fix #6373
+pub const fn in_range(a: i32) -> bool {
+ 3 <= a && a <= 20
+}