| 37 |
|
|
| 38 |
|
|
| 39 |
|
void |
| 40 |
< |
initfunc() /* initialize function evaluation */ |
| 40 |
> |
initfunc(void) /* initialize function evaluation */ |
| 41 |
|
{ |
| 42 |
|
if (!rayinitcal[0]) /* already done? */ |
| 43 |
|
return; |
| 72 |
|
double value; |
| 73 |
|
char *cpd; |
| 74 |
|
/* check if already set */ |
| 75 |
< |
if ((prms == NULL) | (prms == last_params)) |
| 75 |
> |
if (prms == NULL || !*prms) |
| 76 |
|
return; |
| 77 |
< |
if (last_params != NULL && !strcmp(prms, last_params)) |
| 77 |
> |
if (prms == last_params || (last_params != NULL && |
| 78 |
> |
!strcmp(prms, last_params))) |
| 79 |
|
return; |
| 80 |
< |
last_params = prms; /* assign each variable */ |
| 80 |
> |
last_params = prms; /* XXX assumes static string */ |
| 81 |
> |
/* assign each variable */ |
| 82 |
|
while (*prms) { |
| 83 |
|
if (isspace(*prms)) { |
| 84 |
|
++prms; continue; |
| 87 |
|
goto bad_params; |
| 88 |
|
cpd = vname; |
| 89 |
|
while (*prms && (*prms != '=') & !isspace(*prms)) { |
| 90 |
< |
if (!isid(*prms)) |
| 90 |
> |
if (!isid(*prms) | (cpd-vname >= RMAXWORD-1)) |
| 91 |
|
goto bad_params; |
| 92 |
|
*cpd++ = *prms++; |
| 93 |
|
} |
| 92 |
– |
if (cpd == vname) |
| 93 |
– |
goto bad_params; |
| 94 |
|
*cpd = '\0'; |
| 95 |
|
while (isspace(*prms)) prms++; |
| 96 |
|
if (*prms++ != '=') |
| 102 |
|
prms += (*prms == ',') | (*prms == ';'); |
| 103 |
|
varset(vname, '=', value); |
| 104 |
|
} |
| 105 |
+ |
eclock++; /* notify expression evaluator */ |
| 106 |
|
return; |
| 107 |
|
bad_params: |
| 108 |
|
sprintf(errmsg, "bad parameter list '%s'", last_params); |
| 287 |
|
|
| 288 |
|
if ((ffname = getpath(fname, getrlibpath(), R_OK)) == NULL) { |
| 289 |
|
sprintf(errmsg, "cannot find function file \"%s\"", fname); |
| 290 |
< |
error(USER, errmsg); |
| 290 |
> |
error(SYSTEM, errmsg); |
| 291 |
|
} |
| 292 |
|
fcompile(ffname); |
| 293 |
|
} |
| 299 |
|
int n; |
| 300 |
|
|
| 301 |
|
if (fobj == NULL) |
| 302 |
< |
error(USER, "arg(n) called without a context"); |
| 302 |
> |
error(INTERNAL, "arg(n) called without a modifier context"); |
| 303 |
|
|
| 304 |
|
n = argument(1) + .5; /* round to integer */ |
| 305 |
|
|
| 354 |
|
/ funcxf.sca ); |
| 355 |
|
|
| 356 |
|
if (n <= 8) { /* intersection point */ |
| 357 |
< |
if (fray->rot >= FHUGE) |
| 357 |
> |
if (fray->rot >= FHUGE*.99) |
| 358 |
|
return(0.0); /* XXX should be runtime error? */ |
| 359 |
|
|
| 360 |
|
return( fray->rop[0]*funcxf.xfm[0][n-6] + |