Type Alias mariadb_sys::mysql_var_check_func

pub type mysql_var_check_func = Option<unsafe extern "C" fn(thd: *mut THD, var: *mut st_mysql_sys_var, save: *mut c_void, value: *mut st_mysql_value) -> c_int>;

Aliased Type

enum mysql_var_check_func {
    None,
    Some(unsafe extern "C" fn(_: *mut THD, _: *mut st_mysql_sys_var, _: *mut c_void, _: *mut st_mysql_value) -> i32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *mut THD, _: *mut st_mysql_sys_var, _: *mut c_void, _: *mut st_mysql_value) -> i32)

Some value of type T.