Type Alias playdate_system::api::FnSerialMessageCallback

source · 
pub type FnSerialMessageCallback = Option<unsafe extern "C" fn(data: *const c_char)>;

Aliased Type§

enum FnSerialMessageCallback {
    None,
    Some(unsafe extern "C" fn(_: *const i8)),
}

Variants§

§1.0.0

None

No value.

§1.0.0

Some(unsafe extern "C" fn(_: *const i8))

Some value of type T.

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 4 bytes

Size for each variant:

  • None: 0 bytes
  • Some: 4 bytes