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Use wrapping_add in dotstar examples #355

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Merged
merged 1 commit into from
Dec 2, 2020
Merged

Use wrapping_add in dotstar examples #355

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8 changes: 2 additions & 6 deletions boards/itsybitsy_m0/examples/dotstar.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -55,13 +55,9 @@ fn main() -> ! {

let mut rgb = pins.dotstar.init(SpinTimer::new(12), &mut pins.port);

let mut val = 0;
let mut val: u8 = 0;
loop {
// Can't use the modulo operator on a u8 with an overflowing u8 or with a u16
val = match val {
255 => 0,
_ => val + 1,
};
val = val.wrapping_add(1);
let color: [RGB8; 1] = [rgb_wheel(val)];
rgb.write(color.iter().cloned()).unwrap();
delay.delay_ms(60u8);
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8 changes: 2 additions & 6 deletions boards/trinket_m0/examples/dotstar.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -53,13 +53,9 @@ fn main() -> ! {
let mut delay = Delay::new(core.SYST, &mut clocks);
let mut rgb = pins.dotstar.init(SpinTimer::new(12), &mut pins.port);

let mut val = 0;
let mut val: u8 = 0;
loop {
// Can't use the modulo operator on a u8 with an overflowing u8 or with a u16
val = match val {
255 => 0,
_ => val + 1,
};
val = val.wrapping_add(1);
let color: [RGB8; 1] = [rgb_wheel(val)];
rgb.write(color.iter().cloned()).unwrap();
delay.delay_ms(60u8);
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