2 * value - definitions of general values and related routines used by calc
4 * Copyright (C) 1999 David I. Bell
6 * Calc is open software; you can redistribute it and/or modify it under
7 * the terms of the version 2.1 of the GNU Lesser General Public License
8 * as published by the Free Software Foundation.
10 * Calc is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
13 * Public License for more details.
15 * A copy of version 2.1 of the GNU Lesser General Public License is
16 * distributed with calc under the filename COPYING-LGPL. You should have
17 * received a copy with calc; if not, write to Free Software Foundation, Inc.
18 * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
24 * Under source code control: 1993/07/30 19:42:47
25 * File existed as early as: 1993
27 * Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
31 #if !defined(__VALUE_H__)
35 #if defined(CALC_SRC) /* if we are building from the calc source tree */
36 # include "calc/win32dll.h"
37 # include "calc/cmath.h"
38 # include "calc/config.h"
39 # include "calc/shs.h"
40 # include "calc/calcerr.h"
41 # include "calc/hash.h"
42 # include "calc/block.h"
43 # include "calc/nametype.h"
44 # include "calc/string.h"
46 # include <calc/win32dll.h>
47 # include <calc/cmath.h>
48 # include <calc/config.h>
49 # include <calc/shs.h>
50 # include <calc/calcerr.h>
51 # include <calc/hash.h>
52 # include <calc/block.h>
53 # include <calc/nametype.h>
54 # include <calc/string.h>
58 #define MAXDIM 4 /* maximum number of dimensions in matrices */
59 #define USUAL_ELEMENTS 4 /* usual number of elements for objects */
63 * Flags to modify results from the printvalue routine.
64 * These flags are OR'd together.
66 #define PRINT_NORMAL 0x00 /* print in normal manner */
67 #define PRINT_SHORT 0x01 /* print in short format (no elements) */
68 #define PRINT_UNAMBIG 0x02 /* print in non-ambiguous manner */
72 * Definition of values of various types.
74 typedef struct value VALUE;
75 typedef struct object OBJECT;
76 typedef struct matrix MATRIX;
77 typedef struct list LIST;
78 typedef struct assoc ASSOC;
80 typedef struct rand RAND;
81 typedef struct random RANDOM;
87 * See below for information on what needs to be added for a new type.
90 short v_type; /* type of value */
91 short v_subtype; /* other data related to some types */
92 union { /* types of values (see V_XYZ below) */
93 long vv_int; /* 1: small integer value */
94 NUMBER *vv_num; /* 2, 21: real number */
95 COMPLEX *vv_com; /* 3: complex number */
96 VALUE *vv_addr; /* 4, 18: address of variable value */
97 STRING *vv_str; /* 5, 20: string value */
98 MATRIX *vv_mat; /* 6: address of matrix */
99 LIST *vv_list; /* 7: address of list */
100 ASSOC *vv_assoc; /* 8: address of association */
101 OBJECT *vv_obj; /* 9: address of object */
102 FILEID vv_file; /* 10: id of opened file */
103 RAND *vv_rand; /* 11: additive 55 random state */
104 RANDOM *vv_random; /* 12: Blum random state */
105 CONFIG *vv_config; /* 13: configuration state */
106 HASH *vv_hash; /* 14: hash state */
107 BLOCK *vv_block; /* 15: memory block */
108 OCTET *vv_octet; /* 16, 19: octet addr (unsigned char) */
109 NBLOCK *vv_nblock; /* 17: named memory block */
115 * For ease in referencing
117 #define v_int v_union.vv_int
118 #define v_file v_union.vv_file
119 #define v_num v_union.vv_num
120 #define v_com v_union.vv_com
121 #define v_addr v_union.vv_addr
122 #define v_str v_union.vv_str
123 #define v_mat v_union.vv_mat
124 #define v_list v_union.vv_list
125 #define v_assoc v_union.vv_assoc
126 #define v_obj v_union.vv_obj
127 #define v_valid v_union.vv_int
128 #define v_rand v_union.vv_rand
129 #define v_random v_union.vv_random
130 #define v_config v_union.vv_config
131 #define v_hash v_union.vv_hash
132 #define v_block v_union.vv_block
133 #define v_octet v_union.vv_octet
134 #define v_nblock v_union.vv_nblock
140 * NOTE: The following files should be checked/adjusted for a new type:
142 * size.c - elm_count(), lsizeof()
143 * help/size - update what the size() builtin will report
144 * hash.c - hash_value()
145 * quickhash.c - hashvalue()
146 * value.c - freevalue(), copyvalue(), comparevalue(),
148 * and other as needed such as testvalue(), etc.
150 * There may be others, but at is at least a start.
152 #define V_NULL 0 /* null value */
153 #define V_INT 1 /* normal integer */
154 #define V_NUM 2 /* number */
155 #define V_COM 3 /* complex number */
156 #define V_ADDR 4 /* address of variable value */
157 #define V_STR 5 /* address of string */
158 #define V_MAT 6 /* address of matrix structure */
159 #define V_LIST 7 /* address of list structure */
160 #define V_ASSOC 8 /* address of association structure */
161 #define V_OBJ 9 /* address of object structure */
162 #define V_FILE 10 /* opened file id */
163 #define V_RAND 11 /* address of additive 55 random state */
164 #define V_RANDOM 12 /* address of Blum random state */
165 #define V_CONFIG 13 /* configuration state */
166 #define V_HASH 14 /* hash state */
167 #define V_BLOCK 15 /* memory block */
168 #define V_OCTET 16 /* octet (unsigned char) */
169 #define V_NBLOCK 17 /* named memory block */
170 #define V_VPTR 18 /* value address as pointer */
171 #define V_OPTR 19 /* octet address as pointer */
172 #define V_SPTR 20 /* string address as pointer */
173 #define V_NPTR 21 /* number address as pointer */
174 #define V_MAX 21 /* highest legal value */
176 #define V_NOSUBTYPE 0 /* subtype has no meaning */
177 #define V_NOASSIGNTO 1 /* protection status 1 */
178 #define V_NONEWVALUE 2 /* protection status 2 */
179 #define V_NONEWTYPE 4 /* protection status 4 */
180 #define V_NOERROR 8 /* protection status 8 */
181 #define V_NOCOPYTO 16 /* protection status 16 */
182 #define V_NOREALLOC 32 /* protection status 32 */
183 #define V_NOASSIGNFROM 64 /* protection status 64 */
184 #define V_NOCOPYFROM 128 /* protection status 128 */
185 #define V_PROTECTALL 256 /* protection status 256 */
187 #define MAXPROTECT 511
190 * At present protect(var, sts) determines bits in var->v_subtype
191 * corresponding to 4 * sts. MAXPROTECT is the sum of the simple
192 * (power of two) protection status values.
196 #define TWOVAL(a,b) ((a) << 5 | (b)) /* for switch of two values */
198 #define NULL_VALUE ((VALUE *) 0)
204 extern DLL void freevalue(VALUE *vp);
205 extern DLL void copyvalue(VALUE *vp, VALUE *vres);
206 extern DLL void negvalue(VALUE *vp, VALUE *vres);
207 extern DLL void addvalue(VALUE *v1, VALUE *v2, VALUE *vres);
208 extern DLL void subvalue(VALUE *v1, VALUE *v2, VALUE *vres);
209 extern DLL void mulvalue(VALUE *v1, VALUE *v2, VALUE *vres);
210 extern DLL void orvalue(VALUE *v1, VALUE *v2, VALUE *vres);
211 extern DLL void andvalue(VALUE *v1, VALUE *v2, VALUE *vres);
212 extern DLL void compvalue(VALUE *vp, VALUE *vres);
213 extern DLL void xorvalue(VALUE *v1, VALUE *v2, VALUE *vres);
214 extern DLL void squarevalue(VALUE *vp, VALUE *vres);
215 extern DLL void invertvalue(VALUE *vp, VALUE *vres);
216 extern DLL void roundvalue(VALUE *v1, VALUE *v2, VALUE *v3, VALUE *vres);
217 extern DLL void broundvalue(VALUE *v1, VALUE *v2, VALUE *v3, VALUE *vres);
218 extern DLL void setminusvalue(VALUE *, VALUE *, VALUE *);
219 extern DLL void backslashvalue(VALUE *, VALUE *);
220 extern DLL void contentvalue(VALUE *, VALUE *);
221 extern DLL void hashopvalue(VALUE *, VALUE *, VALUE *);
222 extern DLL void apprvalue(VALUE *v1, VALUE *v2, VALUE *v3, VALUE *vres);
223 extern DLL void intvalue(VALUE *vp, VALUE *vres);
224 extern DLL void fracvalue(VALUE *vp, VALUE *vres);
225 extern DLL void incvalue(VALUE *vp, VALUE *vres);
226 extern DLL void decvalue(VALUE *vp, VALUE *vres);
227 extern DLL void conjvalue(VALUE *vp, VALUE *vres);
228 extern DLL void sqrtvalue(VALUE *v1, VALUE *v2, VALUE *v3, VALUE *vres);
229 extern DLL void rootvalue(VALUE *v1, VALUE *v2, VALUE *v3, VALUE *vres);
230 extern DLL void absvalue(VALUE *v1, VALUE *v2, VALUE *vres);
231 extern DLL void normvalue(VALUE *vp, VALUE *vres);
232 extern DLL void shiftvalue(VALUE *v1, VALUE *v2, BOOL rightshift, VALUE *vres);
233 extern DLL void scalevalue(VALUE *v1, VALUE *v2, VALUE *vres);
234 extern DLL void powivalue(VALUE *v1, VALUE *v2, VALUE *vres);
235 extern DLL void powervalue(VALUE *v1, VALUE *v2, VALUE *v3, VALUE *vres);
236 extern DLL void divvalue(VALUE *v1, VALUE *v2, VALUE *vres);
237 extern DLL void quovalue(VALUE *v1, VALUE *v2, VALUE *v3, VALUE *vres);
238 extern DLL void modvalue(VALUE *v1, VALUE *v2, VALUE *v3, VALUE *vres);
239 extern DLL BOOL testvalue(VALUE *vp);
240 extern DLL BOOL comparevalue(VALUE *v1, VALUE *v2);
241 extern DLL BOOL acceptvalue(VALUE *v1, VALUE *v2);
242 extern DLL void relvalue(VALUE *v1, VALUE *v2, VALUE *vres);
243 extern DLL void sgnvalue(VALUE *vp, VALUE *vres);
244 extern DLL QCKHASH hashvalue(VALUE *vp, QCKHASH val);
245 extern DLL void printvalue(VALUE *vp, int flags);
246 extern DLL BOOL precvalue(VALUE *v1, VALUE *v2);
247 extern DLL VALUE error_value(int e);
248 extern DLL int set_errno(int e);
249 extern DLL int set_errcount(int e);
250 extern DLL long countlistitems(LIST *lp);
251 extern DLL void addlistitems(LIST *lp, VALUE *vres);
252 extern DLL void addlistinv(LIST *lp, VALUE *vres);
253 extern DLL void copy2octet(VALUE *, OCTET *);
254 extern DLL int copystod(VALUE *, long, long, VALUE *, long);
255 extern DLL void protectall(VALUE *, int);
256 extern DLL void set_update(int);
260 * Structure of a matrix.
263 long m_dim; /* dimension of matrix */
264 long m_size; /* total number of elements */
265 long m_min[MAXDIM]; /* minimum bound for indices */
266 long m_max[MAXDIM]; /* maximum bound for indices */
267 VALUE m_table[1]; /* actually varying length table */
270 #define matsize(n) (sizeof(MATRIX) - sizeof(VALUE) + ((n) * sizeof(VALUE)))
273 extern DLL MATRIX *matadd(MATRIX *m1, MATRIX *m2);
274 extern DLL MATRIX *matsub(MATRIX *m1, MATRIX *m2);
275 extern DLL MATRIX *matmul(MATRIX *m1, MATRIX *m2);
276 extern DLL MATRIX *matneg(MATRIX *m);
277 extern DLL MATRIX *matalloc(long size);
278 extern DLL MATRIX *matcopy(MATRIX *m);
279 extern DLL MATRIX *matinit(MATRIX *m, VALUE *v1, VALUE *v2);
280 extern DLL MATRIX *matsquare(MATRIX *m);
281 extern DLL MATRIX *matinv(MATRIX *m);
282 extern DLL MATRIX *matscale(MATRIX *m, long n);
283 extern DLL MATRIX *matshift(MATRIX *m, long n);
284 extern DLL MATRIX *matmulval(MATRIX *m, VALUE *vp);
285 extern DLL MATRIX *matpowi(MATRIX *m, NUMBER *q);
286 extern DLL MATRIX *matconj(MATRIX *m);
287 extern DLL MATRIX *matquoval(MATRIX *m, VALUE *vp, VALUE *v3);
288 extern DLL MATRIX *matmodval(MATRIX *m, VALUE *vp, VALUE *v3);
289 extern DLL MATRIX *matint(MATRIX *m);
290 extern DLL MATRIX *matfrac(MATRIX *m);
291 extern DLL MATRIX *matappr(MATRIX *m, VALUE *v2, VALUE *v3);
292 extern DLL VALUE mattrace(MATRIX *m);
293 extern DLL MATRIX *mattrans(MATRIX *m);
294 extern DLL MATRIX *matcross(MATRIX *m1, MATRIX *m2);
295 extern DLL BOOL mattest(MATRIX *m);
296 extern DLL void matsum(MATRIX *m, VALUE *vres);
297 extern DLL BOOL matcmp(MATRIX *m1, MATRIX *m2);
298 extern DLL int matsearch(MATRIX *m, VALUE *vp, long start, long end, ZVALUE *index);
299 extern DLL int matrsearch(MATRIX *m, VALUE *vp, long start, long end, ZVALUE *index);
300 extern DLL VALUE matdet(MATRIX *m);
301 extern DLL VALUE matdot(MATRIX *m1, MATRIX *m2);
302 extern DLL void matfill(MATRIX *m, VALUE *v1, VALUE *v2);
303 extern DLL void matfree(MATRIX *m);
304 extern DLL void matprint(MATRIX *m, long max_print);
305 extern DLL VALUE *matindex(MATRIX *mp, BOOL create, long dim, VALUE *indices);
306 extern DLL void matreverse(MATRIX *m);
307 extern DLL void matsort(MATRIX *m);
308 extern DLL BOOL matisident(MATRIX *m);
309 extern DLL MATRIX *matround(MATRIX *m, VALUE *v2, VALUE *v3);
310 extern DLL MATRIX *matbround(MATRIX *m, VALUE *v2, VALUE *v3);
315 * An individual list element.
317 typedef struct listelem LISTELEM;
319 LISTELEM *e_next; /* next element in list (or NULL) */
320 LISTELEM *e_prev; /* previous element in list (or NULL) */
321 VALUE e_value; /* value of this element */
326 * Structure for a list of elements.
329 LISTELEM *l_first; /* first list element (or NULL) */
330 LISTELEM *l_last; /* last list element (or NULL) */
331 LISTELEM *l_cache; /* cached list element (or NULL) */
332 long l_cacheindex; /* index of cached element (or undefined) */
333 long l_count; /* total number of elements in the list */
337 extern DLL void insertlistfirst(LIST *lp, VALUE *vp);
338 extern DLL void insertlistlast(LIST *lp, VALUE *vp);
339 extern DLL void insertlistmiddle(LIST *lp, long index, VALUE *vp);
340 extern DLL void removelistfirst(LIST *lp, VALUE *vp);
341 extern DLL void removelistlast(LIST *lp, VALUE *vp);
342 extern DLL void removelistmiddle(LIST *lp, long index, VALUE *vp);
343 extern DLL void listfree(LIST *lp);
344 extern DLL void listprint(LIST *lp, long max_print);
345 extern DLL int listsearch(LIST *lp, VALUE *vp, long start, long end, ZVALUE *index);
346 extern DLL int listrsearch(LIST *lp, VALUE *vp, long start, long end, ZVALUE *index);
347 extern DLL BOOL listcmp(LIST *lp1, LIST *lp2);
348 extern DLL VALUE *listfindex(LIST *lp, long index);
349 extern DLL LIST *listalloc(void);
350 extern DLL LIST *listcopy(LIST *lp);
351 extern DLL void listreverse(LIST *lp);
352 extern DLL void listsort(LIST *lp);
353 extern DLL LIST *listappr(LIST *lp, VALUE *v2, VALUE *v3);
354 extern DLL LIST *listround(LIST *m, VALUE *v2, VALUE *v3);
355 extern DLL LIST *listbround(LIST *m, VALUE *v2, VALUE *v3);
356 extern DLL LIST *listquo(LIST *lp, VALUE *v2, VALUE *v3);
357 extern DLL LIST *listmod(LIST *lp, VALUE *v2, VALUE *v3);
358 extern DLL BOOL evp(LISTELEM *cp, LISTELEM *x, VALUE *vres);
359 extern DLL BOOL evalpoly(LIST *clist, LISTELEM *x, VALUE *vres);
360 extern DLL void insertitems(LIST *lp1, LIST *lp2);
361 extern DLL LISTELEM *listelement(LIST *, long);
362 extern DLL LIST *listsegment(LIST *, long, long);
366 * Structures for associations.
367 * Associations are "indexed" by one or more arbitrary values, and are
368 * stored in a hash table with their hash values for quick indexing.
370 typedef struct assocelem ASSOCELEM;
372 ASSOCELEM *e_next; /* next element in list (or NULL) */
373 long e_dim; /* dimension of indexing for this element */
374 QCKHASH e_hash; /* hash value for this element */
375 VALUE e_value; /* value of association */
376 VALUE e_indices[1]; /* index values (variable length) */
381 long a_count; /* number of elements in the association */
382 long a_size; /* current size of association hash table */
383 ASSOCELEM **a_table; /* current hash table for elements */
387 extern DLL ASSOC *assocalloc(long initsize);
388 extern DLL ASSOC *assoccopy(ASSOC *ap);
389 extern DLL void assocfree(ASSOC *ap);
390 extern DLL void assocprint(ASSOC *ap, long max_print);
391 extern DLL int assocsearch(ASSOC *ap, VALUE *vp, long start, long end, ZVALUE *index);
392 extern DLL int assocrsearch(ASSOC *ap, VALUE *vp, long start, long end, ZVALUE *index);
393 extern DLL BOOL assoccmp(ASSOC *ap1, ASSOC *ap2);
394 extern DLL VALUE *assocfindex(ASSOC *ap, long index);
395 extern DLL VALUE *associndex(ASSOC *ap, BOOL create, long dim, VALUE *indices);
401 #define OBJ_PRINT 0 /* print the value */
402 #define OBJ_ONE 1 /* create the multiplicative identity */
403 #define OBJ_TEST 2 /* test a value for "zero" */
404 #define OBJ_ADD 3 /* add two values */
405 #define OBJ_SUB 4 /* subtrace one value from another */
406 #define OBJ_NEG 5 /* negate a value */
407 #define OBJ_MUL 6 /* multiply two values */
408 #define OBJ_DIV 7 /* divide one value by another */
409 #define OBJ_INV 8 /* invert a value */
410 #define OBJ_ABS 9 /* take absolute value of value */
411 #define OBJ_NORM 10 /* take the norm of a value */
412 #define OBJ_CONJ 11 /* take the conjugate of a value */
413 #define OBJ_POW 12 /* take the power function */
414 #define OBJ_SGN 13 /* return the sign of a value */
415 #define OBJ_CMP 14 /* compare two values for equality */
416 #define OBJ_REL 15 /* compare two values for inequality */
417 #define OBJ_QUO 16 /* integer quotient of values */
418 #define OBJ_MOD 17 /* remainder of division of values */
419 #define OBJ_INT 18 /* integer part of */
420 #define OBJ_FRAC 19 /* fractional part of */
421 #define OBJ_INC 20 /* increment by one */
422 #define OBJ_DEC 21 /* decrement by one */
423 #define OBJ_SQUARE 22 /* square value */
424 #define OBJ_SCALE 23 /* scale by power of two */
425 #define OBJ_SHIFT 24 /* shift left (or right) by number of bits */
426 #define OBJ_ROUND 25 /* round to specified decimal places */
427 #define OBJ_BROUND 26 /* round to specified binary places */
428 #define OBJ_ROOT 27 /* take nth root of value */
429 #define OBJ_SQRT 28 /* take square root of value */
430 #define OBJ_OR 29 /* take bitwise or of values */
431 #define OBJ_AND 30 /* take bitwise and of values */
432 #define OBJ_NOT 31 /* take logical not of value */
433 #define OBJ_FACT 32 /* factorial or postfix ! */
434 #define OBJ_MIN 33 /* minimum value */
435 #define OBJ_MAX 34 /* maximum value */
436 #define OBJ_SUM 35 /* sum value */
437 #define OBJ_ASSIGN 36 /* assign value */
438 #define OBJ_XOR 37 /* ~ difference of values */
439 #define OBJ_COMP 38 /* ~ complement of value */
440 #define OBJ_CONTENT 39 /* unary hash op */
441 #define OBJ_HASHOP 40 /* binary hash op */
442 #define OBJ_BACKSLASH 41 /* unary backslash op */
443 #define OBJ_SETMINUS 42 /* binary backslash op */
444 #define OBJ_PLUS 43 /* unary + op */
445 #define OBJ_MAXFUNC 43 /* highest function */
449 * Definition of an object type.
450 * This is actually a varying sized structure.
453 int oa_index; /* index of object type */
454 int oa_count; /* number of elements defined */
455 long oa_indices[OBJ_MAXFUNC+1]; /* function indices for actions */
456 int oa_elements[1]; /* element indices (MUST BE LAST) */
459 #define objectactionsize(elements) \
460 (sizeof(OBJECTACTIONS) + ((elements) - 1) * sizeof(int))
464 * Structure of an object.
465 * This is actually a varying sized structure.
466 * However, there are always at least USUAL_ELEMENTS values in the object.
469 OBJECTACTIONS *o_actions; /* action table for this object */
470 VALUE o_table[USUAL_ELEMENTS]; /* object values (MUST BE LAST) */
473 #define objectsize(elements) \
474 (sizeof(OBJECT) + ((elements) - USUAL_ELEMENTS) * sizeof(VALUE))
477 extern DLL OBJECT *objcopy(OBJECT *op);
478 extern DLL OBJECT *objalloc(long index);
479 extern DLL VALUE objcall(int action, VALUE *v1, VALUE *v2, VALUE *v3);
480 extern DLL void objfree(OBJECT *op);
481 extern DLL int addelement(char *name);
482 extern DLL int defineobject(char *name, int indices[], int count);
483 extern DLL int checkobject(char *name);
484 extern DLL void showobjfuncs(void);
485 extern DLL void showobjtypes(void);
486 extern DLL int findelement(char *name);
487 extern DLL char *objtypename(unsigned long index);
488 extern DLL int objoffset(OBJECT *op, long index);
492 * Configuration parameter name and type.
494 extern NAMETYPE configs[];
495 extern DLL void config_value(CONFIG *cfg, int type, VALUE *ret);
496 extern DLL void setconfig(int type, VALUE *vp);
497 extern DLL void config_print(CONFIG *cfg); /* the CONFIG to print */
501 * size, memsize and sizeof support
503 extern DLL long elm_count(VALUE *vp);
504 extern DLL long lsizeof(VALUE *vp);
505 extern DLL long memsize(VALUE *vp);
510 extern DLL STRING *stringadd(STRING *, STRING *);
511 extern DLL STRING *stringcopy(STRING *);
512 extern DLL STRING *stringsub(STRING *, STRING *);
513 extern DLL STRING *stringmul(NUMBER *, STRING *);
514 extern DLL STRING *stringand(STRING *, STRING *);
515 extern DLL STRING *stringor(STRING *, STRING *);
516 extern DLL STRING *stringxor(STRING *, STRING *);
517 extern DLL STRING *stringdiff(STRING *, STRING *);
518 extern DLL STRING *stringsegment(STRING *, long, long);
519 extern DLL STRING *stringshift(STRING *, long);
520 extern DLL STRING *stringcomp(STRING *);
521 extern DLL STRING *stringneg(STRING *);
522 extern DLL STRING *stringcpy(STRING *, STRING *);
523 extern DLL STRING *stringncpy(STRING *, STRING *, long);
524 extern DLL long stringcontent(STRING *s);
525 extern DLL long stringlowbit(STRING *s);
526 extern DLL long stringhighbit(STRING *s);
527 extern DLL BOOL stringcmp(STRING *, STRING *);
528 extern DLL BOOL stringrel(STRING *, STRING *);
529 extern DLL int stringbit(STRING *, long);
530 extern DLL BOOL stringtest(STRING *);
531 extern DLL int stringsetbit(STRING *, long, BOOL);
532 extern DLL int stringsearch(STRING *, STRING *, long, long, ZVALUE *);
533 extern DLL int stringrsearch(STRING *, STRING *, long, long, ZVALUE *);
535 #endif /* !__VALUE_H__ */