Module type `Immediate_option_intf.Immediate_option`

module type S = S: Always immediate.

module type S_plain = S_plain

module type S_int63 = S_int63: Immediate only on 64-bit machines.

module type S_int63_plain = S_int63_plain

module type S_without_immediate = S_without_immediate: Never immediate.

module type S_without_immediate_plain = S_without_immediate_plain