| 88 |
|
|
| 89 |
|
extern char *savestr(), *emalloc(); |
| 90 |
|
|
| 91 |
– |
extern LIBR *liblookup(); |
| 92 |
– |
|
| 91 |
|
extern VARDEF *argf(); |
| 92 |
|
|
| 93 |
|
#ifdef VARIABLE |
| 155 |
|
{ |
| 156 |
|
register LIBR *lp; |
| 157 |
|
|
| 158 |
< |
if ((lp = liblookup(fname)) == NULL) { |
| 158 |
> |
if ((lp = liblookup(fname)) == NULL) { /* insert */ |
| 159 |
|
if (libsize >= MAXLIB) { |
| 160 |
|
eputs("Too many library functons!\n"); |
| 161 |
|
quit(1); |
| 170 |
|
break; |
| 171 |
|
libsize++; |
| 172 |
|
} |
| 173 |
< |
lp[0].fname = savestr(fname); |
| 174 |
< |
lp[0].nargs = nargs; |
| 175 |
< |
lp[0].atyp = assign; |
| 176 |
< |
lp[0].f = fptr; |
| 173 |
> |
if (fptr == NULL) { /* delete */ |
| 174 |
> |
while (lp < &library[libsize-1]) { |
| 175 |
> |
lp[0].fname = lp[1].fname; |
| 176 |
> |
lp[0].nargs = lp[1].nargs; |
| 177 |
> |
lp[0].atyp = lp[1].atyp; |
| 178 |
> |
lp[0].f = lp[1].f; |
| 179 |
> |
lp++; |
| 180 |
> |
} |
| 181 |
> |
libsize--; |
| 182 |
> |
} else { /* or assign */ |
| 183 |
> |
lp[0].fname = fname; /* string must be static! */ |
| 184 |
> |
lp[0].nargs = nargs; |
| 185 |
> |
lp[0].atyp = assign; |
| 186 |
> |
lp[0].f = fptr; |
| 187 |
> |
} |
| 188 |
> |
libupdate(fname); /* relink library */ |
| 189 |
|
} |
| 190 |
|
|
| 191 |
|
|
| 210 |
|
register int n; |
| 211 |
|
{ |
| 212 |
|
register ACTIVATION *actp = curact; |
| 213 |
< |
EPNODE *ep; |
| 213 |
> |
register EPNODE *ep; |
| 214 |
|
double aval; |
| 215 |
|
|
| 216 |
|
if (actp == NULL || --n < 0) { |
| 379 |
|
|
| 380 |
|
if (vp == NULL) { |
| 381 |
|
vp = &dumdef; |
| 382 |
< |
vp->lib = NULL; |
| 382 |
> |
vp->lib = liblookup(fname); |
| 383 |
|
} |
| 384 |
< |
if (((vp->lib == NULL || strcmp(fname, vp->lib->fname)) && |
| 375 |
< |
(vp->lib = liblookup(fname)) == NULL) || |
| 376 |
< |
vp->lib->f == NULL) { |
| 384 |
> |
if (vp->lib == NULL) { |
| 385 |
|
eputs(fname); |
| 386 |
|
eputs(": undefined function\n"); |
| 387 |
|
quit(1); |
| 388 |
|
} |
| 389 |
|
lasterrno = errno; |
| 390 |
|
errno = 0; |
| 391 |
< |
d = (*vp->lib->f)(); |
| 391 |
> |
d = (*vp->lib->f)(vp->lib->fname); |
| 392 |
|
#ifdef IEEE |
| 393 |
< |
if (!finite(d)) |
| 394 |
< |
errno = EDOM; |
| 393 |
> |
if (errno == 0) |
| 394 |
> |
if (isnan(d)) |
| 395 |
> |
errno = EDOM; |
| 396 |
> |
else if (isinf(d)) |
| 397 |
> |
errno = ERANGE; |
| 398 |
|
#endif |
| 399 |
|
if (errno) { |
| 400 |
|
wputs(fname); |
| 401 |
< |
wputs(": bad call\n"); |
| 401 |
> |
if (errno == EDOM) |
| 402 |
> |
wputs(": domain error\n"); |
| 403 |
> |
else if (errno == ERANGE) |
| 404 |
> |
wputs(": range error\n"); |
| 405 |
> |
else |
| 406 |
> |
wputs(": error in call\n"); |
| 407 |
|
return(0.0); |
| 408 |
|
} |
| 409 |
|
errno = lasterrno; |
