| 196 |
|
|
| 197 |
|
|
| 198 |
|
int |
| 199 |
< |
vardefined( /* return non-zero if variable defined */ |
| 199 |
> |
vardefined( /* return '=' or ':' if variable/constant defined */ |
| 200 |
|
char *name |
| 201 |
|
) |
| 202 |
|
{ |
| 203 |
< |
EPNODE *dp; |
| 203 |
> |
EPNODE *dp = dlookup(name); |
| 204 |
|
|
| 205 |
< |
return((dp = dlookup(name)) != NULL && dp->v.kid->type == SYM); |
| 205 |
> |
if (dp == NULL || dp->v.kid->type != SYM) |
| 206 |
> |
return(0); |
| 207 |
> |
|
| 208 |
> |
return(dp->type); |
| 209 |
|
} |
| 210 |
|
|
| 211 |
|
|
| 640 |
|
ep2 = newnode(); |
| 641 |
|
ep2->type = SYM; |
| 642 |
|
ep2->v.name = savestr(getname()); |
| 643 |
+ |
if (strchr(ep2->v.name, CNTXMARK) != NULL) |
| 644 |
+ |
syntax("illegal parameter name"); |
| 645 |
|
addekid(ep1, ep2); |
| 646 |
|
} while (nextc == ','); |
| 647 |
|
if (nextc != ')') |
| 707 |
|
|
| 708 |
|
|
| 709 |
|
static double /* evaluate a variable */ |
| 710 |
< |
dvalue(char *name, EPNODE *d) |
| 710 |
> |
dvalue(char *name, EPNODE *d) |
| 711 |
|
{ |
| 712 |
|
EPNODE *ep1, *ep2; |
| 713 |
|
|
| 719 |
|
ep1 = d->v.kid->sibling; /* get expression */ |
| 720 |
|
if (ep1->type == NUM) |
| 721 |
|
return(ep1->v.num); /* return if number */ |
| 722 |
+ |
if (esupport&E_RCONST && d->type == ':') { |
| 723 |
+ |
wputs(name); |
| 724 |
+ |
wputs(": assigned non-constant value\n"); |
| 725 |
+ |
} |
| 726 |
|
ep2 = ep1->sibling; /* check time */ |
| 727 |
|
if (eclock >= MAXCLOCK) |
| 728 |
|
eclock = 1; /* wrap clock counter */ |
