73 |
|
|
74 |
|
|
75 |
|
int |
76 |
< |
fundefined(fname) /* return # of arguments for function */ |
77 |
< |
char *fname; |
76 |
> |
fundefined( /* return # of arguments for function */ |
77 |
> |
char *fname |
78 |
> |
) |
79 |
|
{ |
80 |
< |
register LIBR *lp; |
81 |
< |
register VARDEF *vp; |
80 |
> |
LIBR *lp; |
81 |
> |
VARDEF *vp; |
82 |
|
|
83 |
|
if ((vp = varlookup(fname)) != NULL && vp->def != NULL |
84 |
|
&& vp->def->v.kid->type == FUNC) |
91 |
|
|
92 |
|
|
93 |
|
double |
94 |
< |
funvalue(fname, n, a) /* return a function value to the user */ |
95 |
< |
char *fname; |
96 |
< |
int n; |
97 |
< |
double *a; |
94 |
> |
funvalue( /* return a function value to the user */ |
95 |
> |
char *fname, |
96 |
> |
int n, |
97 |
> |
double *a |
98 |
> |
) |
99 |
|
{ |
100 |
|
ACTIVATION act; |
101 |
< |
register VARDEF *vp; |
101 |
> |
VARDEF *vp; |
102 |
|
double rval; |
103 |
|
/* push environment */ |
104 |
|
act.name = fname; |
123 |
|
|
124 |
|
|
125 |
|
void |
126 |
< |
funset(fname, nargs, assign, fptr) /* set a library function */ |
127 |
< |
char *fname; |
128 |
< |
int nargs; |
129 |
< |
int assign; |
130 |
< |
double (*fptr)(char *); |
126 |
> |
funset( /* set a library function */ |
127 |
> |
char *fname, |
128 |
> |
int nargs, |
129 |
> |
int assign, |
130 |
> |
double (*fptr)(char *) |
131 |
> |
) |
132 |
|
{ |
133 |
|
int oldlibsize = libsize; |
134 |
|
char *cp; |
135 |
< |
register LIBR *lp; |
135 |
> |
LIBR *lp; |
136 |
|
/* check for context */ |
137 |
|
for (cp = fname; *cp; cp++) |
138 |
|
; |
146 |
|
quit(1); |
147 |
|
} |
148 |
|
for (lp = &library[libsize]; lp > library; lp--) |
149 |
< |
if (strcmp(lp[-1].fname, fname) > 0) { |
150 |
< |
lp[0].fname = lp[-1].fname; |
151 |
< |
lp[0].nargs = lp[-1].nargs; |
149 |
< |
lp[0].atyp = lp[-1].atyp; |
150 |
< |
lp[0].f = lp[-1].f; |
151 |
< |
} else |
149 |
> |
if (strcmp(lp[-1].fname, fname) > 0) |
150 |
> |
lp[0] = lp[-1]; |
151 |
> |
else |
152 |
|
break; |
153 |
|
libsize++; |
154 |
|
} |
155 |
|
if (fptr == NULL) { /* delete */ |
156 |
|
while (lp < &library[libsize-1]) { |
157 |
< |
lp[0].fname = lp[1].fname; |
158 |
< |
lp[0].nargs = lp[1].nargs; |
159 |
< |
lp[0].atyp = lp[1].atyp; |
160 |
< |
lp[0].f = lp[1].f; |
157 |
> |
lp[0] = lp[1]; |
158 |
|
lp++; |
159 |
|
} |
160 |
|
libsize--; |
170 |
|
|
171 |
|
|
172 |
|
int |
173 |
< |
nargum() /* return number of available arguments */ |
173 |
> |
nargum(void) /* return number of available arguments */ |
174 |
|
{ |
175 |
< |
register int n; |
175 |
> |
int n; |
176 |
|
|
177 |
|
if (curact == NULL) |
178 |
|
return(0); |
186 |
|
|
187 |
|
|
188 |
|
double |
189 |
< |
argument(n) /* return nth argument for active function */ |
193 |
< |
register int n; |
189 |
> |
argument(int n) /* return nth argument for active function */ |
190 |
|
{ |
191 |
< |
register ACTIVATION *actp = curact; |
192 |
< |
register EPNODE *ep; |
191 |
> |
ACTIVATION *actp = curact; |
192 |
> |
EPNODE *ep = NULL; |
193 |
|
double aval; |
194 |
|
|
195 |
|
if (actp == NULL || --n < 0) { |
217 |
|
|
218 |
|
|
219 |
|
VARDEF * |
220 |
< |
argf(n) /* return function def for nth argument */ |
225 |
< |
int n; |
220 |
> |
argf(int n) /* return function def for nth argument */ |
221 |
|
{ |
222 |
< |
register ACTIVATION *actp; |
223 |
< |
register EPNODE *ep; |
222 |
> |
ACTIVATION *actp; |
223 |
> |
EPNODE *ep; |
224 |
|
|
225 |
|
for (actp = curact; actp != NULL; actp = actp->prev) { |
226 |
|
|
255 |
|
|
256 |
|
|
257 |
|
char * |
258 |
< |
argfun(n) /* return function name for nth argument */ |
264 |
< |
int n; |
258 |
> |
argfun(int n) /* return function name for nth argument */ |
259 |
|
{ |
260 |
|
return(argf(n)->name); |
261 |
|
} |
262 |
|
|
263 |
|
|
264 |
|
double |
265 |
< |
efunc(ep) /* evaluate a function */ |
272 |
< |
register EPNODE *ep; |
265 |
> |
efunc(EPNODE *ep) /* evaluate a function */ |
266 |
|
{ |
267 |
|
ACTIVATION act; |
268 |
|
double alist[ALISTSIZ]; |
269 |
|
double rval; |
270 |
< |
register VARDEF *dp; |
270 |
> |
VARDEF *dp; |
271 |
|
/* push environment */ |
272 |
|
dp = resolve(ep->v.kid); |
273 |
|
act.name = dp->name; |
288 |
|
|
289 |
|
|
290 |
|
LIBR * |
291 |
< |
liblookup(fname) /* look up a library function */ |
299 |
< |
char *fname; |
291 |
> |
liblookup(char *fname) /* look up a library function */ |
292 |
|
{ |
293 |
|
int upper, lower; |
294 |
< |
register int cm, i; |
294 |
> |
int cm, i; |
295 |
|
|
296 |
|
lower = 0; |
297 |
|
upper = cm = libsize; |
316 |
|
|
317 |
|
|
318 |
|
static double |
319 |
< |
libfunc(fname, vp) /* execute library function */ |
320 |
< |
char *fname; |
321 |
< |
VARDEF *vp; |
319 |
> |
libfunc( /* execute library function */ |
320 |
> |
char *fname, |
321 |
> |
VARDEF *vp |
322 |
> |
) |
323 |
|
{ |
324 |
< |
register LIBR *lp; |
324 |
> |
LIBR *lp; |
325 |
|
double d; |
326 |
|
int lasterrno; |
327 |
|
|
337 |
|
lasterrno = errno; |
338 |
|
errno = 0; |
339 |
|
d = (*lp->f)(lp->fname); |
340 |
< |
#ifdef IEEE |
340 |
> |
#ifdef isnan |
341 |
|
if (errno == 0) |
342 |
|
if (isnan(d)) |
343 |
|
errno = EDOM; |
378 |
|
static double |
379 |
|
l_select(char *nm) /* return argument #(A1+1) */ |
380 |
|
{ |
381 |
< |
register int n; |
381 |
> |
int n; |
382 |
|
|
383 |
|
n = (int)(argument(1) + .5); |
384 |
|
if (n == 0) |