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#[macro_use]
extern crate bitfield;
use bitfield::BitMut;
use bitfield::BitRangeMut;
bitfield! {
struct BitsLocations([u8]);
}
bitfield! {
struct BitsLocationsMsb0(MSB0 [u8]);
}
fn println_slice_bits(slice: &[u8]) {
if slice.is_empty() {
println!("[]");
} else {
print!("[{:08b}", slice[0]);
for byte in &slice[1..] {
print!(", {:08b}", byte);
}
println!("]");
}
}
fn main() {
let mut bits_locations = BitsLocations([0; 3]);
let mut bits_locations_msb0 = BitsLocationsMsb0([0; 3]);
println!("Default version:");
for i in 0..(3 * 8) {
bits_locations.set_bit(i, true);
print!("{:2}: ", i);
println_slice_bits(&bits_locations.0);
bits_locations.set_bit(i, false);
}
for i in 0..(3 * 8 - 3) {
let msb = i + 3;
let lsb = i;
for value in &[0b1111u8, 0b0001, 0b1000] {
bits_locations.set_bit_range(msb, lsb, *value);
print!("{:2} - {:2} ({:04b}): ", msb, lsb, value);
println_slice_bits(&bits_locations.0);
}
println!();
bits_locations.set_bit_range(msb, lsb, 0u8);
}
println!("MSB0 version:");
for i in 0..(3 * 8) {
bits_locations_msb0.set_bit(i, true);
print!("{:2}: ", i);
println_slice_bits(&bits_locations_msb0.0);
bits_locations_msb0.set_bit(i, false);
}
for i in 0..(3 * 8 - 3) {
let msb = i + 3;
let lsb = i;
for value in &[0b1111u8, 0b0001, 0b1000] {
bits_locations_msb0.set_bit_range(msb, lsb, *value);
print!("{:2} - {:2} ({:04b}): ", msb, lsb, value);
println_slice_bits(&bits_locations_msb0.0);
}
println!();
bits_locations_msb0.set_bit_range(msb, lsb, 0u8);
}
}
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