Function bitfrob::u128_get_value

Get the low to high bit region of u, down shifted by low.

The low and high values form an inclusive bit range.

The output is down shifted by low bits so that it will be based at 0.

Panics

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

assert_eq!(u128_get_value(0, 2, u128::MAX), 0b0000_0111_u128);
assert_eq!(u128_get_value(1, 3, u128::MAX), 0b0000_0111_u128);
assert_eq!(u128_get_value(4, 7, u128::MAX), 0b0000_1111_u128);