Function bitfrob::u128_get_region

source ·

pub const fn u128_get_region(low: u32, high: u32, u: u128) -> u128

Expand description

Get the low to high bit region of u.

The low and high values form an inclusive bit range.

Panics

low and high can’t exceed the number of bits in the type.
low must be less than high.

assert_eq!(u128_get_region(0, 2, u128::MAX), 0b0000_0111_u128);
assert_eq!(u128_get_region(1, 3, u128::MAX), 0b0000_1110_u128);
assert_eq!(u128_get_region(4, 7, u128::MAX), 0b1111_0000_u128);