Type Alias MDBX_predicate_func
pub type MDBX_predicate_func = Option<unsafe extern "C" fn(*mut c_void, *mut iovec, *mut iovec, *mut c_void) -> i32>;
Available on crate feature
mdbx
only.Aliased Type§
pub enum MDBX_predicate_func {
None,
Some(unsafe extern "C" fn(*mut c_void, *mut iovec, *mut iovec, *mut c_void) -> i32),
}
Variants§
None
No value.
Some(unsafe extern "C" fn(*mut c_void, *mut iovec, *mut iovec, *mut c_void) -> i32)
Some value of type T
.
Layout§
Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.