1 // SPDX-License-Identifier: GPL-2.0
21             pub fn [<checked_bit_ $ty>](n: u32) -> Option<$ty> {
25             /// Computes `1 << n` by performing a compile-time assertion that `n` is
31             pub const fn [<bit_ $ty>](n: u32) -> $ty {
55             /// greater than the end or if the range is outside of the
59             pub fn [<genmask_checked_ $ty>](range: RangeInclusive<u32>) -> Option<$ty> {
61                 let end = *range.end();  localVariable
63                 if start > end {
67                 let high = [<checked_bit_ $ty>](end)?;  localVariable
69                 Some((high | (high - 1)) & !(low - 1))
72             /// Creates a compile-time contiguous bitmask for the given range by
73             /// performing a compile-time assertion that the range is valid.
79             pub const fn [<genmask_ $ty>](range: RangeInclusive<u32>) -> $ty {
81                 let end = *range.end();  localVariable
83                 build_assert!(start <= end);
85                 let high = [<bit_ $ty>](end);  localVariable
87                 (high | (high - 1)) & !(low - 1)
107     /// // Invalid range where the start is bigger than the end.
135     /// // Invalid range where the start is bigger than the end.
163     /// // Invalid range where the start is bigger than the end.
191     /// // Invalid range where the start is bigger than the end.