Type Alias proj_sys::PJ_LOG_FUNCTION

pub type PJ_LOG_FUNCTION = Option<unsafe extern "C" fn(arg1: *mut c_void, arg2: c_int, arg3: *const c_char)>;

Aliased Type

enum PJ_LOG_FUNCTION {
    None,
    Some(unsafe extern "C" fn(_: *mut c_void, _: i32, _: *const i8)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *mut c_void, _: i32, _: *const i8))

Some value of type T.