Function demes::ffi::demes_deme_size_at

source · 
#[no_mangle]
pub unsafe extern "C" fn demes_deme_size_at(
    deme: &Deme,
    time: f64,
    output: &mut f64
) -> c_int
Expand description

Get the size of a Deme at a specific time.

§Returns

  • 0 if no error occurs
  • non-zero otherwise

§Side effects

  • If time falls within the deme``s [start_time, end_time), output is overwritten with the size of deme at time time
  • If time is outside of that interval OR an error occurs, output is overwritten with f64::NAN.

§Errors

If the internal calculation of the deme size results in an invalid crate::DemeSize, then this function will return a non-zero value.

§Safety

output must be a non-NULL pointer to a f64.