aff_pt_init
ATTRIBUTE_WARN_UNUSED_RET int aff_pt_init(aff_pt_t in, ec_shortw_crv_src_t curve);
ret = aff_pt_init(out, in->crv); EG(ret, err);
ret = aff_pt_init(in, curve); EG(ret, err);
ret = aff_pt_init(out_shortw, shortw_crv); EG(ret, err);
ret = aff_pt_init(&in_shortw_aff, in_shortw->crv); EG(ret, err);
ret = aff_pt_init(&in_shortw_aff, in_shortw->crv); EG(ret, err);
ret = aff_pt_init(out, in->crv); EG(ret, err);