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whoops. forgot to port advanced/vec

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Lotte Steenbrink 2021-04-14 12:13:32 +02:00
parent c80e9fd620
commit 7e3cda9cad
1 changed files with 8 additions and 4 deletions
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12
advanced/firmware/src/bin/vec.rs
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@ -4,7 +4,8 @@
use cortex_m_rt::entry;
use heapless::{consts, Vec};
use panic_log as _; // the panicking behavior
// this imports `beginner/apps/lib.rs` to retrieve our global logger + panicking-behavior
use firmware as _;
#[entry]
fn main() -> ! {
@ -16,13 +17,16 @@ fn main() -> ! {
// `heapless::Vec` exposes the same API surface as `std::Vec` but some of its methods return a
// `Result` to indicate whether the operation failed due to the `heapless::Vec` being full
log::info!("start: {:?}", buffer);
defmt::info!("start: {:?}", defmt::Debug2Format(&buffer));
// ^^^^^^^^^^^^^^^^^^^ this adapter is currently needed to log
// `heapless` data structures (like `Vec` here)
// with `defmt`
buffer.push(0).expect("buffer full");
log::info!("after `push`: {:?}", buffer);
defmt::info!("after `push`: {:?}", defmt::Debug2Format(&buffer));
buffer.extend_from_slice(&[1, 2, 3]).expect("buffer full");
log::info!("after `extend`: {:?}", buffer);
defmt::info!("after `extend`: {:?}", defmt::Debug2Format(&buffer));
// TODO try this operation
// buffer.extend_from_slice(&[4, 5, 6, 7]).expect("buffer full");