Module interoptopus::patterns::option [−][src]
Expand description
Like a regular Option
but FFI safe.
Example
This function accepts an FFI option and converts it into a Rust option.
use interoptopus::ffi_function; use interoptopus::patterns::option::FFIOption; #[ffi_function] #[no_mangle] pub extern "C" fn set_value(x: FFIOption<u8>) { let _ = x.into_option(); }
On C FFI level the following binding code is generated:
typedef struct optionu8 { uint8_t t; uint8_t is_some; } optionu8; void set_value(optionu8 x);