Notation idlsize := init_data_list_size.
Remark padding_size:
forall frm to, frm <= to -> idlsize (tr_padding frm to) = to - frm.
Remark idlsize_app:
forall d1 d2, idlsize (d1 ++ d2) = idlsize d1 + idlsize d2.
Remark union_field_size:
forall f ty fl, field_type f fl = OK ty -> sizeof ge ty <= sizeof_union ge fl.
Hypothesis ce_consistent: composite_env_consistent ge.

Lemma tr_init_size:
forall i ty data,
tr_init ty i data ->
idlsize data = sizeof ge ty
with tr_init_array_size:
forall ty il sz data,
tr_init_array ty il sz data ->
idlsize data = sizeof ge ty * sz
with tr_init_struct_size:
forall ty fl il pos data,
tr_init_struct ty fl il pos data ->
sizeof_struct ge pos fl <= sizeof ge ty ->
idlsize data + pos = sizeof ge ty.