2 * Copyright (c) 1995-2003, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
6 * $Id: odr_choice.c,v 1.21 2003-01-06 08:20:27 adam Exp $
14 int odr_choice(ODR o, Odr_arm arm[], void *p, void *whichp,
17 int i, cl = -1, tg, cn, *which = (int *)whichp, bias = o->choice_bias;
21 if (o->direction != ODR_DECODE && !*(char**)p)
24 if (o->direction == ODR_DECODE)
31 if (o->direction == ODR_PRINT)
36 fprintf (o->print, "choice\n");
39 for (i = 0; arm[i].fun; i++)
41 if (o->direction == ODR_DECODE)
43 if (bias >= 0 && bias != arm[i].which)
45 *which = arm[i].which;
47 else if (*which != arm[i].which)
50 if (arm[i].tagmode != ODR_NONE)
52 if (o->direction == ODR_DECODE && cl < 0)
54 if (o->op->stackp > -1 && !odr_constructed_more(o))
56 if (ber_dectag(o->bp, &cl, &tg, &cn) <= 0)
59 else if (o->direction != ODR_DECODE)
64 if (tg == arm[i].tag && cl == arm[i].zclass)
66 if (arm[i].tagmode == ODR_IMPLICIT)
68 odr_implicit_settag(o, cl, tg);
69 return (*arm[i].fun)(o, (char **)p, 0, arm[i].name);
72 if (!odr_constructed_begin(o, p, cl, tg, 0))
74 return (*arm[i].fun)(o, (char **)p, 0, arm[i].name) &&
75 odr_constructed_end(o);
78 else /* no tagging. Have to poll type */
80 if ((*arm[i].fun)(o, (char **)p, 1, arm[i].name) && *(char**)p)
87 void odr_choice_bias(ODR o, int what)
90 o->choice_bias = what;
93 void odr_choice_enable_bias (ODR o, int mode)
95 o->enable_bias = mode;