chk.c revision 1.10
1 /* $NetBSD: chk.c,v 1.10 2001/05/28 12:40:38 lukem Exp $ */ 2 3 /* 4 * Copyright (c) 1996 Christopher G. Demetriou. All Rights Reserved. 5 * Copyright (c) 1994, 1995 Jochen Pohl 6 * All Rights Reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Jochen Pohl for 19 * The NetBSD Project. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 #ifndef lint 37 __RCSID("$NetBSD: chk.c,v 1.10 2001/05/28 12:40:38 lukem Exp $"); 38 #endif 39 40 #include <stdlib.h> 41 #include <ctype.h> 42 #include <limits.h> 43 #include <err.h> 44 45 #include "lint2.h" 46 47 /* various type information */ 48 ttab_t ttab[NTSPEC]; 49 50 51 static void chkund(hte_t *); 52 static void chkdnu(hte_t *); 53 static void chkdnud(hte_t *); 54 static void chkmd(hte_t *); 55 static void chkvtui(hte_t *, sym_t *, sym_t *); 56 static void chkvtdi(hte_t *, sym_t *, sym_t *); 57 static void chkfaui(hte_t *, sym_t *, sym_t *); 58 static void chkau(hte_t *, int, sym_t *, sym_t *, pos_t *, 59 fcall_t *, fcall_t *, type_t *, type_t *); 60 static void chkrvu(hte_t *, sym_t *); 61 static void chkadecl(hte_t *, sym_t *, sym_t *); 62 static void printflike(hte_t *,fcall_t *, int, const char *, type_t **); 63 static void scanflike(hte_t *, fcall_t *, int, const char *, type_t **); 64 static void badfmt(hte_t *, fcall_t *); 65 static void inconarg(hte_t *, fcall_t *, int); 66 static void tofewarg(hte_t *, fcall_t *); 67 static void tomanyarg(hte_t *, fcall_t *); 68 static int eqtype(type_t *, type_t *, int, int, int, int *); 69 static int eqargs(type_t *, type_t *, int *); 70 static int mnoarg(type_t *, int *); 71 72 73 void 74 inittyp(void) 75 { 76 int i; 77 static struct { 78 tspec_t it_tspec; 79 ttab_t it_ttab; 80 } ittab[] = { 81 { SIGNED, { 0, 0, 82 SIGNED, UNSIGN, 83 0, 0, 0, 0, 0, "signed" } }, 84 { UNSIGN, { 0, 0, 85 SIGNED, UNSIGN, 86 0, 0, 0, 0, 0, "unsigned" } }, 87 { CHAR, { CHAR_BIT, CHAR_BIT, 88 SCHAR, UCHAR, 89 1, 0, 0, 1, 1, "char" } }, 90 { SCHAR, { CHAR_BIT, CHAR_BIT, 91 SCHAR, UCHAR, 92 1, 0, 0, 1, 1, "signed char" } }, 93 { UCHAR, { CHAR_BIT, CHAR_BIT, 94 SCHAR, UCHAR, 95 1, 1, 0, 1, 1, "unsigned char" } }, 96 { SHORT, { sizeof (short) * CHAR_BIT, 2 * CHAR_BIT, 97 SHORT, USHORT, 98 1, 0, 0, 1, 1, "short" } }, 99 { USHORT, { sizeof (u_short) * CHAR_BIT, 2 * CHAR_BIT, 100 SHORT, USHORT, 101 1, 1, 0, 1, 1, "unsigned short" } }, 102 { INT, { sizeof (int) * CHAR_BIT, 3 * CHAR_BIT, 103 INT, UINT, 104 1, 0, 0, 1, 1, "int" } }, 105 { UINT, { sizeof (u_int) * CHAR_BIT, 3 * CHAR_BIT, 106 INT, UINT, 107 1, 1, 0, 1, 1, "unsigned int" } }, 108 { LONG, { sizeof (long) * CHAR_BIT, 4 * CHAR_BIT, 109 LONG, ULONG, 110 1, 0, 0, 1, 1, "long" } }, 111 { ULONG, { sizeof (u_long) * CHAR_BIT, 4 * CHAR_BIT, 112 LONG, ULONG, 113 1, 1, 0, 1, 1, "unsigned long" } }, 114 { QUAD, { sizeof (quad_t) * CHAR_BIT, 8 * CHAR_BIT, 115 QUAD, UQUAD, 116 1, 0, 0, 1, 1, "long long" } }, 117 { UQUAD, { sizeof (u_quad_t) * CHAR_BIT, 8 * CHAR_BIT, 118 QUAD, UQUAD, 119 1, 1, 0, 1, 1, "unsigned long long" } }, 120 { FLOAT, { sizeof (float) * CHAR_BIT, 4 * CHAR_BIT, 121 FLOAT, FLOAT, 122 0, 0, 1, 1, 1, "float" } }, 123 { DOUBLE, { sizeof (double) * CHAR_BIT, 8 * CHAR_BIT, 124 DOUBLE, DOUBLE, 125 0, 0, 1, 1, 1, "double" } }, 126 { LDOUBLE, { sizeof (ldbl_t) * CHAR_BIT, 10 * CHAR_BIT, 127 LDOUBLE, LDOUBLE, 128 0, 0, 1, 1, 1, "long double" } }, 129 { VOID, { -1, -1, 130 VOID, VOID, 131 0, 0, 0, 0, 0, "void" } }, 132 { STRUCT, { -1, -1, 133 STRUCT, STRUCT, 134 0, 0, 0, 0, 0, "struct" } }, 135 { UNION, { -1, -1, 136 UNION, UNION, 137 0, 0, 0, 0, 0, "union" } }, 138 { ENUM, { sizeof (int) * CHAR_BIT, 3 * CHAR_BIT, 139 ENUM, ENUM, 140 1, 0, 0, 1, 1, "enum" } }, 141 { PTR, { sizeof (void *) * CHAR_BIT, 4 * CHAR_BIT, 142 PTR, PTR, 143 0, 1, 0, 0, 1, "pointer" } }, 144 { ARRAY, { -1, -1, 145 ARRAY, ARRAY, 146 0, 0, 0, 0, 0, "array" } }, 147 { FUNC, { -1, -1, 148 FUNC, FUNC, 149 0, 0, 0, 0, 0, "function" } }, 150 }; 151 152 for (i = 0; i < sizeof (ittab) / sizeof (ittab[0]); i++) 153 STRUCT_ASSIGN(ttab[ittab[i].it_tspec], ittab[i].it_ttab); 154 if (!pflag) { 155 for (i = 0; i < NTSPEC; i++) 156 ttab[i].tt_psz = ttab[i].tt_sz; 157 } 158 } 159 160 161 /* 162 * If there is a symbol named "main", mark it as used. 163 */ 164 void 165 mainused(void) 166 { 167 hte_t *hte; 168 169 if ((hte = hsearch("main", 0)) != NULL) 170 hte->h_used = 1; 171 } 172 173 /* 174 * Performs all tests for a single name 175 */ 176 void 177 chkname(hte_t *hte) 178 { 179 sym_t *sym, *def, *pdecl, *decl; 180 181 if (uflag) { 182 chkund(hte); 183 chkdnu(hte); 184 if (xflag) 185 chkdnud(hte); 186 } 187 chkmd(hte); 188 189 /* Get definition, prototype declaration and declaration */ 190 def = pdecl = decl = NULL; 191 for (sym = hte->h_syms; sym != NULL; sym = sym->s_nxt) { 192 if (def == NULL && (sym->s_def == DEF || sym->s_def == TDEF)) 193 def = sym; 194 if (pdecl == NULL && sym->s_def == DECL && 195 TP(sym->s_type)->t_tspec == FUNC && 196 TP(sym->s_type)->t_proto) { 197 pdecl = sym; 198 } 199 if (decl == NULL && sym->s_def == DECL) 200 decl = sym; 201 } 202 203 /* A prototype is better than an old style declaration. */ 204 if (pdecl != NULL) 205 decl = pdecl; 206 207 chkvtui(hte, def, decl); 208 209 chkvtdi(hte, def, decl); 210 211 chkfaui(hte, def, decl); 212 213 chkrvu(hte, def); 214 215 chkadecl(hte, def, decl); 216 } 217 218 /* 219 * Print a warning if the name has been used, but not defined. 220 */ 221 static void 222 chkund(hte_t *hte) 223 { 224 fcall_t *fcall; 225 usym_t *usym; 226 227 if (!hte->h_used || hte->h_def) 228 return; 229 230 if ((fcall = hte->h_calls) != NULL) { 231 /* %s used( %s ), but not defined */ 232 msg(0, hte->h_name, mkpos(&fcall->f_pos)); 233 } else if ((usym = hte->h_usyms) != NULL) { 234 /* %s used( %s ), but not defined */ 235 msg(0, hte->h_name, mkpos(&usym->u_pos)); 236 } 237 } 238 239 /* 240 * Print a warning if the name has been defined, but never used. 241 */ 242 static void 243 chkdnu(hte_t *hte) 244 { 245 sym_t *sym; 246 247 if (!hte->h_def || hte->h_used) 248 return; 249 250 for (sym = hte->h_syms; sym != NULL; sym = sym->s_nxt) { 251 if (sym->s_def == DEF || sym->s_def == TDEF) { 252 /* %s defined( %s ), but never used */ 253 msg(1, hte->h_name, mkpos(&sym->s_pos)); 254 break; 255 } 256 } 257 } 258 259 /* 260 * Print a warning if the variable has been declared, but is not used 261 * or defined. 262 */ 263 static void 264 chkdnud(hte_t *hte) 265 { 266 sym_t *sym; 267 268 if (hte->h_syms == NULL || hte->h_used || hte->h_def) 269 return; 270 271 sym = hte->h_syms; 272 if (TP(sym->s_type)->t_tspec == FUNC) 273 return; 274 275 if (sym->s_def != DECL) 276 errx(1, "internal error: chkdnud() 1"); 277 /* %s declared( %s ), but never used or defined */ 278 msg(2, hte->h_name, mkpos(&sym->s_pos)); 279 } 280 281 /* 282 * Print a warning if there is more then one definition for 283 * this name. 284 */ 285 static void 286 chkmd(hte_t *hte) 287 { 288 sym_t *sym, *def1; 289 char *pos1; 290 291 if (!hte->h_def) 292 return; 293 294 def1 = NULL; 295 for (sym = hte->h_syms; sym != NULL; sym = sym->s_nxt) { 296 /* 297 * ANSI C allows tentative definitions of the same name in 298 * only one compilation unit. 299 */ 300 if (sym->s_def != DEF && (!sflag || sym->s_def != TDEF)) 301 continue; 302 if (def1 == NULL) { 303 def1 = sym; 304 continue; 305 } 306 pos1 = xstrdup(mkpos(&def1->s_pos)); 307 /* %s multiply defined\t%s :: %s */ 308 msg(3, hte->h_name, pos1, mkpos(&sym->s_pos)); 309 free(pos1); 310 } 311 } 312 313 /* 314 * Print a warning if the return value assumed for a function call 315 * differs from the return value of the function definition or 316 * function declaration. 317 * 318 * If no definition/declaration can be found, the assumed return values 319 * are always int. So there is no need to compare with another function 320 * call as it's done for function arguments. 321 */ 322 static void 323 chkvtui(hte_t *hte, sym_t *def, sym_t *decl) 324 { 325 fcall_t *call; 326 char *pos1; 327 type_t *tp1, *tp2; 328 /* LINTED (automatic hides external declaration: warn) */ 329 int warn, eq; 330 tspec_t t1; 331 332 if (hte->h_calls == NULL) 333 return; 334 335 if (def == NULL) 336 def = decl; 337 if (def == NULL) 338 return; 339 340 t1 = (tp1 = TP(def->s_type)->t_subt)->t_tspec; 341 for (call = hte->h_calls; call != NULL; call = call->f_nxt) { 342 tp2 = TP(call->f_type)->t_subt; 343 eq = eqtype(tp1, tp2, 1, 0, 0, (warn = 0, &warn)); 344 if (!call->f_rused) { 345 /* no return value used */ 346 if ((t1 == STRUCT || t1 == UNION) && !eq) { 347 /* 348 * If a function returns a struct or union it 349 * must be declared to return a struct or 350 * union, also if the return value is ignored. 351 * This is necessary because the caller must 352 * allocate stack space for the return value. 353 * If it does not, the return value would over- 354 * write other data. 355 * XXX Following massage may be confusing 356 * because it appears also if the return value 357 * was declared inconsistently. But this 358 * behaviour matches pcc based lint, so it is 359 * accepted for now. 360 */ 361 pos1 = xstrdup(mkpos(&def->s_pos)); 362 /* %s value must be decl. before use %s :: %s */ 363 msg(17, hte->h_name, 364 pos1, mkpos(&call->f_pos)); 365 free(pos1); 366 } 367 continue; 368 } 369 if (!eq || (sflag && warn)) { 370 pos1 = xstrdup(mkpos(&def->s_pos)); 371 /* %s value used inconsistenty\t%s :: %s */ 372 msg(4, hte->h_name, pos1, mkpos(&call->f_pos)); 373 free(pos1); 374 } 375 } 376 } 377 378 /* 379 * Print a warning if a definition/declaration does not match another 380 * definition/declaration of the same name. For functions, only the 381 * types of return values are tested. 382 */ 383 static void 384 chkvtdi(hte_t *hte, sym_t *def, sym_t *decl) 385 { 386 sym_t *sym; 387 type_t *tp1, *tp2; 388 /* LINTED (automatic hides external declaration: warn) */ 389 int eq, warn; 390 char *pos1; 391 392 if (def == NULL) 393 def = decl; 394 if (def == NULL) 395 return; 396 397 tp1 = TP(def->s_type); 398 for (sym = hte->h_syms; sym != NULL; sym = sym->s_nxt) { 399 if (sym == def) 400 continue; 401 tp2 = TP(sym->s_type); 402 warn = 0; 403 if (tp1->t_tspec == FUNC && tp2->t_tspec == FUNC) { 404 eq = eqtype(tp1->t_subt, tp2->t_subt, 1, 0, 0, &warn); 405 } else { 406 eq = eqtype(tp1, tp2, 0, 0, 0, &warn); 407 } 408 if (!eq || (sflag && warn)) { 409 pos1 = xstrdup(mkpos(&def->s_pos)); 410 /* %s value declared inconsistently\t%s :: %s */ 411 msg(5, hte->h_name, pos1, mkpos(&sym->s_pos)); 412 free(pos1); 413 } 414 } 415 } 416 417 /* 418 * Print a warning if a function is called with arguments which does 419 * not match the function definition, declaration or another call 420 * of the same function. 421 */ 422 static void 423 chkfaui(hte_t *hte, sym_t *def, sym_t *decl) 424 { 425 type_t *tp1, *tp2, **ap1, **ap2; 426 pos_t *pos1p = NULL; 427 fcall_t *calls, *call, *call1; 428 int n, as; 429 char *pos1; 430 arginf_t *ai; 431 432 if ((calls = hte->h_calls) == NULL) 433 return; 434 435 /* 436 * If we find a function definition, we use this for comparison, 437 * otherwise the first prototype we can find. If there is no 438 * definition or prototype declaration, the first function call 439 * is used. 440 */ 441 tp1 = NULL; 442 call1 = NULL; 443 if (def != NULL) { 444 if ((tp1 = TP(def->s_type))->t_tspec != FUNC) 445 return; 446 pos1p = &def->s_pos; 447 } else if (decl != NULL && TP(decl->s_type)->t_proto) { 448 if ((tp1 = TP(decl->s_type))->t_tspec != FUNC) 449 return; 450 pos1p = &decl->s_pos; 451 } 452 if (tp1 == NULL) { 453 call1 = calls; 454 calls = calls->f_nxt; 455 if ((tp1 = TP(call1->f_type))->t_tspec != FUNC) 456 return; 457 pos1p = &call1->f_pos; 458 } 459 460 n = 1; 461 for (call = calls; call != NULL; call = call->f_nxt) { 462 if ((tp2 = TP(call->f_type))->t_tspec != FUNC) 463 continue; 464 ap1 = tp1->t_args; 465 ap2 = tp2->t_args; 466 n = 0; 467 while (*ap1 != NULL && *ap2 != NULL) { 468 if (def != NULL && def->s_va && n >= def->s_nva) 469 break; 470 n++; 471 chkau(hte, n, def, decl, pos1p, call1, call, 472 *ap1, *ap2); 473 ap1++; 474 ap2++; 475 } 476 if (*ap1 == *ap2) { 477 /* equal # of arguments */ 478 } else if (def != NULL && def->s_va && n >= def->s_nva) { 479 /* 480 * function definition with VARARGS; The # of 481 * arguments of the call must be at least as large 482 * as the parameter of VARARGS. 483 */ 484 } else if (*ap2 != NULL && tp1->t_proto && tp1->t_vararg) { 485 /* 486 * prototype with ... and function call with 487 * at least the same # of arguments as declared 488 * in the prototype. 489 */ 490 } else { 491 pos1 = xstrdup(mkpos(pos1p)); 492 /* %s: variable # of args\t%s :: %s */ 493 msg(7, hte->h_name, pos1, mkpos(&call->f_pos)); 494 free(pos1); 495 continue; 496 } 497 498 /* perform SCANFLIKE/PRINTFLIKE tests */ 499 if (def == NULL || (!def->s_prfl && !def->s_scfl)) 500 continue; 501 as = def->s_prfl ? def->s_nprfl : def->s_nscfl; 502 for (ai = call->f_args; ai != NULL; ai = ai->a_nxt) { 503 if (ai->a_num == as) 504 break; 505 } 506 if (ai == NULL || !ai->a_fmt) 507 continue; 508 if (def->s_prfl) { 509 printflike(hte, call, n, ai->a_fstrg, ap2); 510 } else { 511 scanflike(hte, call, n, ai->a_fstrg, ap2); 512 } 513 } 514 } 515 516 /* 517 * Check a single argument in a function call. 518 * 519 * hte a pointer to the hash table entry of the function 520 * n the number of the argument (1..) 521 * def the function definition or NULL 522 * decl prototype declaration, old style declaration or NULL 523 * pos1p position of definition, declaration of first call 524 * call1 first call, if both def and decl are old style def/decl 525 * call checked call 526 * arg1 currently checked argument of def/decl/call1 527 * arg2 currently checked argument of call 528 * 529 */ 530 static void 531 chkau(hte_t *hte, int n, sym_t *def, sym_t *decl, pos_t *pos1p, 532 fcall_t *call1, fcall_t *call, type_t *arg1, type_t *arg2) 533 { 534 /* LINTED (automatic hides external declaration: warn) */ 535 int promote, asgn, warn; 536 tspec_t t1, t2; 537 arginf_t *ai, *ai1; 538 char *pos1; 539 540 /* 541 * If a function definition is available (def != NULL), we compair the 542 * function call (call) with the definition. Otherwise, if a function 543 * definition is available and it is not an old style definition 544 * (decl != NULL && TP(decl->s_type)->t_proto), we compair the call 545 * with this declaration. Otherwise we compair it with the first 546 * call we have found (call1). 547 */ 548 549 /* arg1 must be promoted if it stems from an old style definition */ 550 promote = def != NULL && def->s_osdef; 551 552 /* 553 * If we compair with a definition or declaration, we must perform 554 * the same checks for qualifiers in indirected types as in 555 * assignments. 556 */ 557 asgn = def != NULL || (decl != NULL && TP(decl->s_type)->t_proto); 558 559 warn = 0; 560 if (eqtype(arg1, arg2, 1, promote, asgn, &warn) && (!sflag || !warn)) 561 return; 562 563 /* 564 * Other lint implementations print warnings as soon as the type 565 * of an argument does not match exactly the expected type. The 566 * result are lots of warnings which are really not neccessary. 567 * We print a warning only if 568 * (0) at least one type is not an interger type and types differ 569 * (1) hflag is set and types differ 570 * (2) types differ, except in signedness 571 * If the argument is an integer constant whose msb is not set, 572 * signedness is ignored (e.g. 0 matches both signed and unsigned 573 * int). This is with and without hflag. 574 * If the argument is an integer constant with value 0 and the 575 * expected argument is of type pointer and the width of the 576 * interger constant is the same as the width of the pointer, 577 * no warning is printed. 578 */ 579 t1 = arg1->t_tspec; 580 t2 = arg2->t_tspec; 581 if (isityp(t1) && isityp(t2) && !arg1->t_isenum && !arg2->t_isenum) { 582 if (promote) { 583 /* 584 * XXX Here is a problem: Althrough it is possible to 585 * pass an int where a char/short it expected, there 586 * may be loss in significant digits. We should first 587 * check for const arguments if they can be converted 588 * into the original parameter type. 589 */ 590 if (t1 == FLOAT) { 591 t1 = DOUBLE; 592 } else if (t1 == CHAR || t1 == SCHAR) { 593 t1 = INT; 594 } else if (t1 == UCHAR) { 595 t1 = tflag ? UINT : INT; 596 } else if (t1 == SHORT) { 597 t1 = INT; 598 } else if (t1 == USHORT) { 599 /* CONSTCOND */ 600 t1 = INT_MAX < USHRT_MAX || tflag ? UINT : INT; 601 } 602 } 603 604 if (styp(t1) == styp(t2)) { 605 606 /* 607 * types differ only in signedness; get information 608 * about arguments 609 */ 610 611 /* 612 * treat a definition like a call with variable 613 * arguments 614 */ 615 ai1 = call1 != NULL ? call1->f_args : NULL; 616 617 /* 618 * if two calls are compared, ai1 is set to the 619 * information for the n-th argument, if this was 620 * a constant, otherwise to NULL 621 */ 622 for ( ; ai1 != NULL; ai1 = ai1->a_nxt) { 623 if (ai1->a_num == n) 624 break; 625 } 626 /* 627 * ai is set to the information of the n-th arg 628 * of the (second) call, if this was a constant, 629 * otherwise to NULL 630 */ 631 for (ai = call->f_args; ai != NULL; ai = ai->a_nxt) { 632 if (ai->a_num == n) 633 break; 634 } 635 636 if (ai1 == NULL && ai == NULL) { 637 /* no constant at all */ 638 if (!hflag) 639 return; 640 } else if (ai1 == NULL || ai == NULL) { 641 /* one constant */ 642 if (ai == NULL) 643 ai = ai1; 644 if (ai->a_zero || ai->a_pcon) 645 /* same value in signed and unsigned */ 646 return; 647 /* value (not representation) differently */ 648 } else { 649 /* 650 * two constants, one signed, one unsigned; 651 * if the msb of one of the constants is set, 652 * the argument is used inconsistently. 653 */ 654 if (!ai1->a_ncon && !ai->a_ncon) 655 return; 656 } 657 } 658 659 } else if (t1 == PTR && isityp(t2)) { 660 for (ai = call->f_args; ai != NULL; ai = ai->a_nxt) { 661 if (ai->a_num == n) 662 break; 663 } 664 /* 665 * Vendor implementations of lint (e.g. HP-UX, Digital UNIX) 666 * don't care about the size of the integer argument, 667 * only whether or not it is zero. We do the same. 668 */ 669 if (ai != NULL && ai->a_zero) 670 return; 671 } 672 673 pos1 = xstrdup(mkpos(pos1p)); 674 /* %s, arg %d used inconsistently\t%s :: %s */ 675 msg(6, hte->h_name, n, pos1, mkpos(&call->f_pos)); 676 free(pos1); 677 } 678 679 /* 680 * Compare the types in the NULL-terminated array ap with the format 681 * string fmt. 682 */ 683 static void 684 printflike(hte_t *hte, fcall_t *call, int n, const char *fmt, type_t **ap) 685 { 686 const char *fp; 687 int fc; 688 int fwidth, prec, left, sign, space, alt, zero; 689 tspec_t sz, t1, t2 = NOTSPEC; 690 type_t *tp; 691 692 fp = fmt; 693 fc = *fp++; 694 695 for ( ; ; ) { 696 if (fc == '\0') { 697 if (*ap != NULL) 698 tomanyarg(hte, call); 699 break; 700 } 701 if (fc != '%') { 702 badfmt(hte, call); 703 break; 704 } 705 fc = *fp++; 706 fwidth = prec = left = sign = space = alt = zero = 0; 707 sz = NOTSPEC; 708 709 /* Flags */ 710 for ( ; ; ) { 711 if (fc == '-') { 712 if (left) 713 break; 714 left = 1; 715 } else if (fc == '+') { 716 if (sign) 717 break; 718 sign = 1; 719 } else if (fc == ' ') { 720 if (space) 721 break; 722 space = 1; 723 } else if (fc == '#') { 724 if (alt) 725 break; 726 alt = 1; 727 } else if (fc == '0') { 728 if (zero) 729 break; 730 zero = 1; 731 } else { 732 break; 733 } 734 fc = *fp++; 735 } 736 737 /* field width */ 738 if (isdigit(fc)) { 739 fwidth = 1; 740 do { fc = *fp++; } while (isdigit(fc)) ; 741 } else if (fc == '*') { 742 fwidth = 1; 743 fc = *fp++; 744 if ((tp = *ap++) == NULL) { 745 tofewarg(hte, call); 746 break; 747 } 748 n++; 749 if ((t1 = tp->t_tspec) != INT && (hflag || t1 != UINT)) 750 inconarg(hte, call, n); 751 } 752 753 /* precision */ 754 if (fc == '.') { 755 fc = *fp++; 756 prec = 1; 757 if (isdigit(fc)) { 758 do { fc = *fp++; } while (isdigit(fc)); 759 } else if (fc == '*') { 760 fc = *fp++; 761 if ((tp = *ap++) == NULL) { 762 tofewarg(hte, call); 763 break; 764 } 765 n++; 766 if (tp->t_tspec != INT) 767 inconarg(hte, call, n); 768 } else { 769 badfmt(hte, call); 770 break; 771 } 772 } 773 774 if (fc == 'h') { 775 sz = SHORT; 776 } else if (fc == 'l') { 777 sz = LONG; 778 } else if (fc == 'q') { 779 sz = QUAD; 780 } else if (fc == 'L') { 781 sz = LDOUBLE; 782 } 783 if (sz != NOTSPEC) 784 fc = *fp++; 785 786 if (fc == '%') { 787 if (sz != NOTSPEC || left || sign || space || 788 alt || zero || prec || fwidth) { 789 badfmt(hte, call); 790 } 791 fc = *fp++; 792 continue; 793 } 794 795 if (fc == '\0') { 796 badfmt(hte, call); 797 break; 798 } 799 800 if ((tp = *ap++) == NULL) { 801 tofewarg(hte, call); 802 break; 803 } 804 n++; 805 if ((t1 = tp->t_tspec) == PTR) 806 t2 = tp->t_subt->t_tspec; 807 808 if (fc == 'd' || fc == 'i') { 809 if (alt || sz == LDOUBLE) { 810 badfmt(hte, call); 811 break; 812 } 813 int_conv: 814 if (sz == LONG) { 815 if (t1 != LONG && (hflag || t1 != ULONG)) 816 inconarg(hte, call, n); 817 } else if (sz == QUAD) { 818 if (t1 != QUAD && (hflag || t1 != UQUAD)) 819 inconarg(hte, call, n); 820 } else { 821 /* 822 * SHORT is always promoted to INT, USHORT 823 * to INT or UINT. 824 */ 825 if (t1 != INT && (hflag || t1 != UINT)) 826 inconarg(hte, call, n); 827 } 828 } else if (fc == 'o' || fc == 'u' || fc == 'x' || fc == 'X') { 829 if ((alt && fc == 'u') || sz == LDOUBLE) 830 badfmt(hte, call); 831 uint_conv: 832 if (sz == LONG) { 833 if (t1 != ULONG && (hflag || t1 != LONG)) 834 inconarg(hte, call, n); 835 } else if (sz == QUAD) { 836 if (t1 != UQUAD && (hflag || t1 != QUAD)) 837 inconarg(hte, call, n); 838 } else if (sz == SHORT) { 839 /* USHORT was promoted to INT or UINT */ 840 if (t1 != UINT && t1 != INT) 841 inconarg(hte, call, n); 842 } else { 843 if (t1 != UINT && (hflag || t1 != INT)) 844 inconarg(hte, call, n); 845 } 846 } else if (fc == 'D' || fc == 'O' || fc == 'U') { 847 if ((alt && fc != 'O') || sz != NOTSPEC || !tflag) 848 badfmt(hte, call); 849 sz = LONG; 850 if (fc == 'D') { 851 goto int_conv; 852 } else { 853 goto uint_conv; 854 } 855 } else if (fc == 'f' || fc == 'e' || fc == 'E' || 856 fc == 'g' || fc == 'G') { 857 if (sz == NOTSPEC) 858 sz = DOUBLE; 859 if (sz != DOUBLE && sz != LDOUBLE) 860 badfmt(hte, call); 861 if (t1 != sz) 862 inconarg(hte, call, n); 863 } else if (fc == 'c') { 864 if (sz != NOTSPEC || alt || zero) 865 badfmt(hte, call); 866 if (t1 != INT) 867 inconarg(hte, call, n); 868 } else if (fc == 's') { 869 if (sz != NOTSPEC || alt || zero) 870 badfmt(hte, call); 871 if (t1 != PTR || 872 (t2 != CHAR && t2 != UCHAR && t2 != SCHAR)) { 873 inconarg(hte, call, n); 874 } 875 } else if (fc == 'p') { 876 if (fwidth || prec || sz != NOTSPEC || alt || zero) 877 badfmt(hte, call); 878 if (t1 != PTR || (hflag && t2 != VOID)) 879 inconarg(hte, call, n); 880 } else if (fc == 'n') { 881 if (fwidth || prec || alt || zero || sz == LDOUBLE) 882 badfmt(hte, call); 883 if (t1 != PTR) { 884 inconarg(hte, call, n); 885 } else if (sz == LONG) { 886 if (t2 != LONG && t2 != ULONG) 887 inconarg(hte, call, n); 888 } else if (sz == SHORT) { 889 if (t2 != SHORT && t2 != USHORT) 890 inconarg(hte, call, n); 891 } else { 892 if (t2 != INT && t2 != UINT) 893 inconarg(hte, call, n); 894 } 895 } else { 896 badfmt(hte, call); 897 break; 898 } 899 900 fc = *fp++; 901 } 902 } 903 904 /* 905 * Compare the types in the NULL-terminated array ap with the format 906 * string fmt. 907 */ 908 static void 909 scanflike(hte_t *hte, fcall_t *call, int n, const char *fmt, type_t **ap) 910 { 911 const char *fp; 912 int fc; 913 int noasgn, fwidth; 914 tspec_t sz, t1 = NOTSPEC, t2 = NOTSPEC; 915 type_t *tp = NULL; 916 917 fp = fmt; 918 fc = *fp++; 919 920 for ( ; ; ) { 921 if (fc == '\0') { 922 if (*ap != NULL) 923 tomanyarg(hte, call); 924 break; 925 } 926 if (fc != '%') { 927 badfmt(hte, call); 928 break; 929 } 930 fc = *fp++; 931 932 noasgn = fwidth = 0; 933 sz = NOTSPEC; 934 935 if (fc == '*') { 936 noasgn = 1; 937 fc = *fp++; 938 } 939 940 if (isdigit(fc)) { 941 fwidth = 1; 942 do { fc = *fp++; } while (isdigit(fc)); 943 } 944 945 if (fc == 'h') { 946 sz = SHORT; 947 } else if (fc == 'l') { 948 sz = LONG; 949 } else if (fc == 'q') { 950 sz = QUAD; 951 } else if (fc == 'L') { 952 sz = LDOUBLE; 953 } 954 if (sz != NOTSPEC) 955 fc = *fp++; 956 957 if (fc == '%') { 958 if (sz != NOTSPEC || noasgn || fwidth) 959 badfmt(hte, call); 960 fc = *fp++; 961 continue; 962 } 963 964 if (!noasgn) { 965 if ((tp = *ap++) == NULL) { 966 tofewarg(hte, call); 967 break; 968 } 969 n++; 970 if ((t1 = tp->t_tspec) == PTR) 971 t2 = tp->t_subt->t_tspec; 972 } 973 974 if (fc == 'd' || fc == 'i' || fc == 'n') { 975 if (sz == LDOUBLE) 976 badfmt(hte, call); 977 if (sz != SHORT && sz != LONG && sz != QUAD) 978 sz = INT; 979 conv: 980 if (!noasgn) { 981 if (t1 != PTR) { 982 inconarg(hte, call, n); 983 } else if (t2 != styp(sz)) { 984 inconarg(hte, call, n); 985 } else if (hflag && t2 != sz) { 986 inconarg(hte, call, n); 987 } else if (tp->t_subt->t_const) { 988 inconarg(hte, call, n); 989 } 990 } 991 } else if (fc == 'o' || fc == 'u' || fc == 'x') { 992 if (sz == LDOUBLE) 993 badfmt(hte, call); 994 if (sz == SHORT) { 995 sz = USHORT; 996 } else if (sz == LONG) { 997 sz = ULONG; 998 } else if (sz == QUAD) { 999 sz = UQUAD; 1000 } else { 1001 sz = UINT; 1002 } 1003 goto conv; 1004 } else if (fc == 'D') { 1005 if (sz != NOTSPEC || !tflag) 1006 badfmt(hte, call); 1007 sz = LONG; 1008 goto conv; 1009 } else if (fc == 'O') { 1010 if (sz != NOTSPEC || !tflag) 1011 badfmt(hte, call); 1012 sz = ULONG; 1013 goto conv; 1014 } else if (fc == 'X') { 1015 /* 1016 * XXX valid in ANSI C, but in NetBSD's libc imple- 1017 * mented as "lx". Thats why it should be avoided. 1018 */ 1019 if (sz != NOTSPEC || !tflag) 1020 badfmt(hte, call); 1021 sz = ULONG; 1022 goto conv; 1023 } else if (fc == 'E') { 1024 /* 1025 * XXX valid in ANSI C, but in NetBSD's libc imple- 1026 * mented as "lf". Thats why it should be avoided. 1027 */ 1028 if (sz != NOTSPEC || !tflag) 1029 badfmt(hte, call); 1030 sz = DOUBLE; 1031 goto conv; 1032 } else if (fc == 'F') { 1033 /* XXX only for backward compatibility */ 1034 if (sz != NOTSPEC || !tflag) 1035 badfmt(hte, call); 1036 sz = DOUBLE; 1037 goto conv; 1038 } else if (fc == 'G') { 1039 /* 1040 * XXX valid in ANSI C, but in NetBSD's libc not 1041 * implemented 1042 */ 1043 if (sz != NOTSPEC && sz != LONG && sz != LDOUBLE) 1044 badfmt(hte, call); 1045 goto fconv; 1046 } else if (fc == 'e' || fc == 'f' || fc == 'g') { 1047 fconv: 1048 if (sz == NOTSPEC) { 1049 sz = FLOAT; 1050 } else if (sz == LONG) { 1051 sz = DOUBLE; 1052 } else if (sz != LDOUBLE) { 1053 badfmt(hte, call); 1054 sz = FLOAT; 1055 } 1056 goto conv; 1057 } else if (fc == 's' || fc == '[' || fc == 'c') { 1058 if (sz != NOTSPEC) 1059 badfmt(hte, call); 1060 if (fc == '[') { 1061 if ((fc = *fp++) == '-') { 1062 badfmt(hte, call); 1063 fc = *fp++; 1064 } 1065 if (fc != ']') { 1066 badfmt(hte, call); 1067 if (fc == '\0') 1068 break; 1069 } 1070 } 1071 if (!noasgn) { 1072 if (t1 != PTR) { 1073 inconarg(hte, call, n); 1074 } else if (t2 != CHAR && t2 != UCHAR && 1075 t2 != SCHAR) { 1076 inconarg(hte, call, n); 1077 } 1078 } 1079 } else if (fc == 'p') { 1080 if (sz != NOTSPEC) 1081 badfmt(hte, call); 1082 if (!noasgn) { 1083 if (t1 != PTR || t2 != PTR) { 1084 inconarg(hte, call, n); 1085 } else if (tp->t_subt->t_subt->t_tspec!=VOID) { 1086 if (hflag) 1087 inconarg(hte, call, n); 1088 } 1089 } 1090 } else { 1091 badfmt(hte, call); 1092 break; 1093 } 1094 1095 fc = *fp++; 1096 } 1097 } 1098 1099 static void 1100 badfmt(hte_t *hte, fcall_t *call) 1101 { 1102 1103 /* %s: malformed format string\t%s */ 1104 msg(13, hte->h_name, mkpos(&call->f_pos)); 1105 } 1106 1107 static void 1108 inconarg(hte_t *hte, fcall_t *call, int n) 1109 { 1110 1111 /* %s, arg %d inconsistent with format\t%s(%d) */ 1112 msg(14, hte->h_name, n, mkpos(&call->f_pos)); 1113 } 1114 1115 static void 1116 tofewarg(hte_t *hte, fcall_t *call) 1117 { 1118 1119 /* %s: too few args for format \t%s */ 1120 msg(15, hte->h_name, mkpos(&call->f_pos)); 1121 } 1122 1123 static void 1124 tomanyarg(hte_t *hte, fcall_t *call) 1125 { 1126 1127 /* %s: too many args for format \t%s */ 1128 msg(16, hte->h_name, mkpos(&call->f_pos)); 1129 } 1130 1131 1132 /* 1133 * Print warnings for return values which are used, but not returned, 1134 * or return values which are always or sometimes ignored. 1135 */ 1136 static void 1137 chkrvu(hte_t *hte, sym_t *def) 1138 { 1139 fcall_t *call; 1140 int used, ignored; 1141 1142 if (def == NULL) 1143 /* don't know wheter or not the functions returns a value */ 1144 return; 1145 1146 if (hte->h_calls == NULL) 1147 return; 1148 1149 if (def->s_rval) { 1150 /* function has return value */ 1151 used = ignored = 0; 1152 for (call = hte->h_calls; call != NULL; call = call->f_nxt) { 1153 used |= call->f_rused || call->f_rdisc; 1154 ignored |= !call->f_rused && !call->f_rdisc; 1155 } 1156 /* 1157 * XXX as soon as we are able to disable single warnings 1158 * the following dependencies from hflag should be removed. 1159 * but for now I do'nt want to be botherd by this warnings 1160 * which are almost always useless. 1161 */ 1162 if (!used && ignored) { 1163 if (hflag) 1164 /* %s returns value which is always ignored */ 1165 msg(8, hte->h_name); 1166 } else if (used && ignored) { 1167 if (hflag) 1168 /* %s returns value which is sometimes ign. */ 1169 msg(9, hte->h_name); 1170 } 1171 } else { 1172 /* function has no return value */ 1173 for (call = hte->h_calls; call != NULL; call = call->f_nxt) { 1174 if (call->f_rused) 1175 /* %s value is used( %s ), but none ret. */ 1176 msg(10, hte->h_name, mkpos(&call->f_pos)); 1177 } 1178 } 1179 } 1180 1181 /* 1182 * Print warnings for inconsistent argument declarations. 1183 */ 1184 static void 1185 chkadecl(hte_t *hte, sym_t *def, sym_t *decl) 1186 { 1187 /* LINTED (automatic hides external declaration: warn) */ 1188 int osdef, eq, warn, n; 1189 sym_t *sym1, *sym; 1190 type_t **ap1, **ap2, *tp1, *tp2; 1191 char *pos1; 1192 const char *pos2; 1193 1194 osdef = 0; 1195 if (def != NULL) { 1196 osdef = def->s_osdef; 1197 sym1 = def; 1198 } else if (decl != NULL && TP(decl->s_type)->t_proto) { 1199 sym1 = decl; 1200 } else { 1201 return; 1202 } 1203 if (TP(sym1->s_type)->t_tspec != FUNC) 1204 return; 1205 1206 /* 1207 * XXX Prototypes should also be compared with old style function 1208 * declarations. 1209 */ 1210 1211 for (sym = hte->h_syms; sym != NULL; sym = sym->s_nxt) { 1212 if (sym == sym1 || !TP(sym->s_type)->t_proto) 1213 continue; 1214 ap1 = TP(sym1->s_type)->t_args; 1215 ap2 = TP(sym->s_type)->t_args; 1216 n = 0; 1217 while (*ap1 != NULL && *ap2 != NULL) { 1218 warn = 0; 1219 eq = eqtype(*ap1, *ap2, 1, osdef, 0, &warn); 1220 if (!eq || warn) { 1221 pos1 = xstrdup(mkpos(&sym1->s_pos)); 1222 pos2 = mkpos(&sym->s_pos); 1223 /* %s, arg %d declared inconsistently ... */ 1224 msg(11, hte->h_name, n + 1, pos1, pos2); 1225 free(pos1); 1226 } 1227 n++; 1228 ap1++; 1229 ap2++; 1230 } 1231 if (*ap1 == *ap2) { 1232 tp1 = TP(sym1->s_type); 1233 tp2 = TP(sym->s_type); 1234 if (tp1->t_vararg == tp2->t_vararg) 1235 continue; 1236 if (tp2->t_vararg && 1237 sym1->s_va && sym1->s_nva == n && !sflag) { 1238 continue; 1239 } 1240 } 1241 /* %s: variable # of args declared\t%s :: %s */ 1242 pos1 = xstrdup(mkpos(&sym1->s_pos)); 1243 msg(12, hte->h_name, pos1, mkpos(&sym->s_pos)); 1244 free(pos1); 1245 } 1246 } 1247 1248 1249 /* 1250 * Check compatibility of two types. Returns 1 if types are compatible, 1251 * otherwise 0. 1252 * 1253 * ignqual if set, ignore qualifiers of outhermost type; used for 1254 * function arguments 1255 * promote if set, promote left type before comparison; used for 1256 * comparisons of arguments with parameters of old style 1257 * definitions 1258 * asgn left indirected type must have at least the same qualifiers 1259 * like right indirected type (for assignments and function 1260 * arguments) 1261 * *warn set to 1 if an old style declaration was compared with 1262 * an incompatible prototype declaration 1263 */ 1264 static int 1265 eqtype(type_t *tp1, type_t *tp2, int ignqual, int promot, int asgn, int *warn) 1266 { 1267 tspec_t t, to; 1268 int indir; 1269 1270 to = NOTSPEC; 1271 indir = 0; 1272 1273 while (tp1 != NULL && tp2 != NULL) { 1274 1275 t = tp1->t_tspec; 1276 if (promot) { 1277 if (t == FLOAT) { 1278 t = DOUBLE; 1279 } else if (t == CHAR || t == SCHAR) { 1280 t = INT; 1281 } else if (t == UCHAR) { 1282 t = tflag ? UINT : INT; 1283 } else if (t == SHORT) { 1284 t = INT; 1285 } else if (t == USHORT) { 1286 /* CONSTCOND */ 1287 t = INT_MAX < USHRT_MAX || tflag ? UINT : INT; 1288 } 1289 } 1290 1291 if (asgn && to == PTR) { 1292 if (indir == 1 && (t == VOID || tp2->t_tspec == VOID)) 1293 return (1); 1294 } 1295 1296 if (t != tp2->t_tspec) { 1297 /* 1298 * Give pointer to types which differ only in 1299 * signedness a chance if not sflag and not hflag. 1300 */ 1301 if (sflag || hflag || to != PTR) 1302 return (0); 1303 if (styp(t) != styp(tp2->t_tspec)) 1304 return (0); 1305 } 1306 1307 if (tp1->t_isenum && tp2->t_isenum) { 1308 if (tp1->t_istag && tp2->t_istag) { 1309 return (tp1->t_tag == tp2->t_tag); 1310 } else if (tp1->t_istynam && tp2->t_istynam) { 1311 return (tp1->t_tynam == tp2->t_tynam); 1312 } else if (tp1->t_isuniqpos && tp2->t_isuniqpos) { 1313 return (tp1->t_uniqpos.p_line == 1314 tp2->t_uniqpos.p_line && 1315 tp1->t_uniqpos.p_file == 1316 tp2->t_uniqpos.p_file && 1317 tp1->t_uniqpos.p_uniq == 1318 tp2->t_uniqpos.p_uniq); 1319 } else { 1320 return (0); 1321 } 1322 } 1323 1324 /* 1325 * XXX Handle combinations of enum and int if eflag is set. 1326 * But note: enum and 0 should be allowed. 1327 */ 1328 1329 if (asgn && indir == 1) { 1330 if (!tp1->t_const && tp2->t_const) 1331 return (0); 1332 if (!tp1->t_volatile && tp2->t_volatile) 1333 return (0); 1334 } else if (!ignqual && !tflag) { 1335 if (tp1->t_const != tp2->t_const) 1336 return (0); 1337 if (tp1->t_const != tp2->t_const) 1338 return (0); 1339 } 1340 1341 if (t == STRUCT || t == UNION) { 1342 if (tp1->t_istag && tp2->t_istag) { 1343 return (tp1->t_tag == tp2->t_tag); 1344 } else if (tp1->t_istynam && tp2->t_istynam) { 1345 return (tp1->t_tynam == tp2->t_tynam); 1346 } else if (tp1->t_isuniqpos && tp2->t_isuniqpos) { 1347 return (tp1->t_uniqpos.p_line == 1348 tp2->t_uniqpos.p_line && 1349 tp1->t_uniqpos.p_file == 1350 tp2->t_uniqpos.p_file && 1351 tp1->t_uniqpos.p_uniq == 1352 tp2->t_uniqpos.p_uniq); 1353 } else { 1354 return (0); 1355 } 1356 } 1357 1358 if (t == ARRAY && tp1->t_dim != tp2->t_dim) { 1359 if (tp1->t_dim != 0 && tp2->t_dim != 0) 1360 return (0); 1361 } 1362 1363 if (t == FUNC) { 1364 if (tp1->t_proto && tp2->t_proto) { 1365 if (!eqargs(tp1, tp2, warn)) 1366 return (0); 1367 } else if (tp1->t_proto) { 1368 if (!mnoarg(tp1, warn)) 1369 return (0); 1370 } else if (tp2->t_proto) { 1371 if (!mnoarg(tp2, warn)) 1372 return (0); 1373 } 1374 } 1375 1376 tp1 = tp1->t_subt; 1377 tp2 = tp2->t_subt; 1378 ignqual = promot = 0; 1379 to = t; 1380 indir++; 1381 1382 } 1383 1384 return (tp1 == tp2); 1385 } 1386 1387 /* 1388 * Compares arguments of two prototypes 1389 */ 1390 static int 1391 eqargs(type_t *tp1, type_t *tp2, int *warn) 1392 { 1393 type_t **a1, **a2; 1394 1395 if (tp1->t_vararg != tp2->t_vararg) 1396 return (0); 1397 1398 a1 = tp1->t_args; 1399 a2 = tp2->t_args; 1400 1401 while (*a1 != NULL && *a2 != NULL) { 1402 1403 if (eqtype(*a1, *a2, 1, 0, 0, warn) == 0) 1404 return (0); 1405 1406 a1++; 1407 a2++; 1408 1409 } 1410 1411 return (*a1 == *a2); 1412 } 1413 1414 /* 1415 * mnoarg() (matches functions with no argument type information) 1416 * returns 1 if all parameters of a prototype are compatible with 1417 * and old style function declaration. 1418 * This is the case if following conditions are met: 1419 * 1. the prototype must have a fixed number of parameters 1420 * 2. no parameter is of type float 1421 * 3. no parameter is converted to another type if integer promotion 1422 * is applied on it 1423 */ 1424 static int 1425 mnoarg(type_t *tp, int *warn) 1426 { 1427 type_t **arg; 1428 tspec_t t; 1429 1430 if (tp->t_vararg && warn != NULL) 1431 *warn = 1; 1432 for (arg = tp->t_args; *arg != NULL; arg++) { 1433 if ((t = (*arg)->t_tspec) == FLOAT) 1434 return (0); 1435 if (t == CHAR || t == SCHAR || t == UCHAR) 1436 return (0); 1437 if (t == SHORT || t == USHORT) 1438 return (0); 1439 } 1440 return (1); 1441 } 1442
Indexes created Tue Oct 14 21:09:58 GMT 2025