Function pgx_pg_sys::DefineCustomRealVariable

pub unsafe fn DefineCustomRealVariable(
    arg_name: *const c_char, 
    arg_short_desc: *const c_char, 
    arg_long_desc: *const c_char, 
    arg_valueAddr: *mut f64, 
    arg_bootValue: f64, 
    arg_minValue: f64, 
    arg_maxValue: f64, 
    arg_context: GucContext, 
    arg_flags: c_int, 
    arg_check_hook: GucRealCheckHook, 
    arg_assign_hook: GucRealAssignHook, 
    arg_show_hook: GucShowHook
)