1 /* $NetBSD: err.c,v 1.40 2009/04/15 01:20:57 christos Exp $ */
4 * Copyright (c) 1994, 1995 Jochen Pohl
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Jochen Pohl for
19 * 4. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #include <sys/cdefs.h>
35 #if defined(__RCSID) && !defined(lint)
36 __RCSID("$NetBSD: err.c,v 1.40 2009/04/15 01:20:57 christos Exp $");
38 __FBSDID("$FreeBSD$");
40 #include <sys/types.h>
46 /* number of errors found */
49 /* number of syntax errors */
53 static const char *lbasename(const char *);
54 static void verror(int, va_list);
55 static void vwarning(int, va_list);
58 const char *msgs[] = {
59 "syntax error: empty declaration", /* 0 */
60 "old style declaration; add int", /* 1 */
61 "empty declaration", /* 2 */
62 "%s declared in argument declaration list", /* 3 */
63 "illegal type combination", /* 4 */
64 "modifying typedef with '%s'; only qualifiers allowed", /* 5 */
65 "use 'double' instead of 'long float'", /* 6 */
66 "only one storage class allowed", /* 7 */
67 "illegal storage class", /* 8 */
68 "only register valid as formal parameter storage class", /* 9 */
69 "duplicate '%s'", /* 10 */
70 "bit-field initializer out of range", /* 11 */
71 "compiler takes size of function", /* 12 */
72 "incomplete enum type: %s", /* 13 */
73 "compiler takes alignment of function", /* 14 */
74 "function returns illegal type", /* 15 */
75 "array of function is illegal", /* 16 */
76 "null dimension", /* 17 */
77 "illegal use of 'void'", /* 18 */
78 "void type for %s", /* 19 */
79 "negative array dimension (%d)", /* 20 */
80 "redeclaration of formal parameter %s", /* 21 */
81 "incomplete or misplaced function definition", /* 22 */
82 "undefined label %s", /* 23 */
83 "cannot initialize function: %s", /* 24 */
84 "cannot initialize typedef: %s", /* 25 */
85 "cannot initialize extern declaration: %s", /* 26 */
86 "redeclaration of %s", /* 27 */
87 "redefinition of %s", /* 28 */
88 "previously declared extern, becomes static: %s", /* 29 */
89 "redeclaration of %s; ANSI C requires static", /* 30 */
90 "incomplete structure or union %s: %s", /* 31 */
91 "argument type defaults to 'int': %s", /* 32 */
92 "duplicate member name: %s", /* 33 */
93 "nonportable bit-field type", /* 34 */
94 "illegal bit-field type", /* 35 */
95 "illegal bit-field size", /* 36 */
96 "zero size bit-field", /* 37 */
97 "function illegal in structure or union", /* 38 */
98 "zero sized array in struct is a C99 extension: %s", /* 39 */
99 "unknown size: %s", /* 40 */
100 "illegal use of bit-field", /* 41 */
101 "forward reference to enum type", /* 42 */
102 "redefinition hides earlier one: %s", /* 43 */
103 "declaration introduces new type in ANSI C: %s %s", /* 44 */
104 "base type is really '%s %s'", /* 45 */
105 "(%s) tag redeclared", /* 46 */
106 "zero sized %s is a C9X feature", /* 47 */
107 "overflow in enumeration values: %s", /* 48 */
108 "struct or union member must be named", /* 49 */
109 "a function is declared as an argument: %s", /* 50 */
110 "parameter mismatch: %d declared, %d defined", /* 51 */
111 "cannot initialize parameter: %s", /* 52 */
112 "declared argument %s is missing", /* 53 */
113 "trailing ',' prohibited in enum declaration", /* 54 */
114 "integral constant expression expected", /* 55 */
115 "integral constant too large", /* 56 */
116 "enumeration constant hides parameter: %s", /* 57 */
117 "type does not match prototype: %s", /* 58 */
118 "formal parameter lacks name: param #%d", /* 59 */
119 "void must be sole parameter", /* 60 */
120 "void parameter cannot have name: %s", /* 61 */
121 "function prototype parameters must have types", /* 62 */
122 "prototype does not match old-style definition", /* 63 */
123 "()-less function definition", /* 64 */
124 "%s has no named members", /* 65 */
125 "syntax requires ';' after last struct/union member", /* 66 */
126 "cannot return incomplete type", /* 67 */
127 "typedef already qualified with '%s'", /* 68 */
128 "inappropriate qualifiers with 'void'", /* 69 */
129 "%soperand of '%s' is unsigned in ANSI C", /* 70 */
130 "too many characters in character constant", /* 71 */
131 "typedef declares no type name", /* 72 */
132 "empty character constant", /* 73 */
133 "no hex digits follow \\x", /* 74 */
134 "overflow in hex escape", /* 75 */
135 "character escape does not fit in character", /* 76 */
136 "bad octal digit %c", /* 77 */
137 "nonportable character escape", /* 78 */
138 "dubious escape \\%c", /* 79 */
139 "dubious escape \\%o", /* 80 */
140 "\\a undefined in traditional C", /* 81 */
141 "\\x undefined in traditional C", /* 82 */
142 "storage class after type is obsolescent", /* 83 */
143 "ANSI C requires formal parameter before '...'", /* 84 */
144 "dubious tag declaration: %s %s", /* 85 */
145 "automatic hides external declaration: %s", /* 86 */
146 "static hides external declaration: %s", /* 87 */
147 "typedef hides external declaration: %s", /* 88 */
148 "typedef redeclared: %s", /* 89 */
149 "inconsistent redeclaration of extern: %s", /* 90 */
150 "declaration hides parameter: %s", /* 91 */
151 "inconsistent redeclaration of static: %s", /* 92 */
152 "dubious static function at block level: %s", /* 93 */
153 "function has illegal storage class: %s", /* 94 */
154 "declaration hides earlier one: %s", /* 95 */
155 "cannot dereference non-pointer type", /* 96 */
156 "suffix U is illegal in traditional C", /* 97 */
157 "suffixes F and L are illegal in traditional C", /* 98 */
158 "%s undefined", /* 99 */
159 "unary + is illegal in traditional C", /* 100 */
160 "undefined struct/union member: %s", /* 101 */
161 "illegal member use: %s", /* 102 */
162 "left operand of '.' must be struct/union object", /* 103 */
163 "left operand of '->' must be pointer to struct/union", /* 104 */
164 "non-unique member requires struct/union %s", /* 105 */
165 "left operand of '->' must be pointer", /* 106 */
166 "operands of '%s' have incompatible types", /* 107 */
167 "operand of '%s' has incompatible type", /* 108 */
168 "void type illegal in expression", /* 109 */
169 "pointer to function is not allowed here", /* 110 */
170 "unacceptable operand of '%s'", /* 111 */
171 "cannot take address of bit-field", /* 112 */
172 "cannot take address of register %s", /* 113 */
173 "%soperand of '%s' must be lvalue", /* 114 */
174 "%soperand of '%s' must be modifiable lvalue", /* 115 */
175 "illegal pointer subtraction", /* 116 */
176 "bitwise operation on signed value possibly nonportable", /* 117 */
177 "semantics of '%s' change in ANSI C; use explicit cast", /* 118 */
178 "conversion of '%s' to '%s' is out of range", /* 119 */
179 "bitwise operation on signed value nonportable", /* 120 */
180 "negative shift", /* 121 */
181 "shift greater than size of object", /* 122 */
182 "illegal combination of pointer and integer, op %s", /* 123 */
183 "illegal pointer combination, op %s", /* 124 */
184 "ANSI C forbids ordered comparisons of pointers to functions",/* 125 */
185 "incompatible types in conditional", /* 126 */
186 "'&' before array or function: ignored", /* 127 */
187 "operands have incompatible pointer types, op %s", /* 128 */
188 "expression has null effect", /* 129 */
189 "enum type mismatch, op %s", /* 130 */
190 "conversion to '%s' may sign-extend incorrectly", /* 131 */
191 "conversion from '%s' to '%s' may lose accuracy", /* 132 */
192 "conversion of pointer to '%s' loses bits", /* 133 */
193 "conversion of pointer to '%s' may lose bits", /* 134 */
194 "possible pointer alignment problem", /* 135 */
195 "cannot do pointer arithmetic on operand of unknown size", /* 136 */
196 "use of incomplete enum type, op %s", /* 137 */
197 "unknown operand size, op %s", /* 138 */
198 "division by 0", /* 139 */
199 "modulus by 0", /* 140 */
200 "integer overflow detected, op %s", /* 141 */
201 "floating point overflow detected, op %s", /* 142 */
202 "cannot take size of incomplete type", /* 143 */
203 "cannot take size of function", /* 144 */
204 "cannot take size of bit-field", /* 145 */
205 "cannot take size of void", /* 146 */
206 "invalid cast expression", /* 147 */
207 "improper cast of void expression", /* 148 */
208 "illegal function", /* 149 */
209 "argument mismatch: %d arg%s passed, %d expected", /* 150 */
210 "void expressions may not be arguments, arg #%d", /* 151 */
211 "argument cannot have unknown size, arg #%d", /* 152 */
212 "argument has incompatible pointer type, arg #%d", /* 153 */
213 "illegal combination of pointer and integer, arg #%d", /* 154 */
214 "argument is incompatible with prototype, arg #%d", /* 155 */
215 "enum type mismatch, arg #%d", /* 156 */
216 "ANSI C treats constant as unsigned", /* 157 */
217 "%s may be used before set", /* 158 */
218 "assignment in conditional context", /* 159 */
219 "operator '==' found where '=' was expected", /* 160 */
220 "constant in conditional context", /* 161 */
221 "comparison of %s with %s, op %s", /* 162 */
222 "a cast does not yield an lvalue", /* 163 */
223 "assignment of negative constant to unsigned type", /* 164 */
224 "constant truncated by assignment", /* 165 */
225 "precision lost in bit-field assignment", /* 166 */
226 "array subscript cannot be negative: %ld", /* 167 */
227 "array subscript cannot be > %d: %ld", /* 168 */
228 "precedence confusion possible: parenthesize!", /* 169 */
229 "first operand must have scalar type, op ? :", /* 170 */
230 "assignment type mismatch", /* 171 */
231 "too many struct/union initializers", /* 172 */
232 "too many array initializers", /* 173 */
233 "too many initializers", /* 174 */
234 "initialisation of an incomplete type", /* 175 */
235 "invalid initializer type %s", /* 176 */
236 "non-constant initializer", /* 177 */
237 "initializer does not fit", /* 178 */
238 "cannot initialize struct/union with no named member", /* 179 */
239 "bit-field initializer does not fit", /* 180 */
240 "{}-enclosed initializer required", /* 181 */
241 "incompatible pointer types", /* 182 */
242 "illegal combination of pointer and integer", /* 183 */
243 "illegal pointer combination", /* 184 */
244 "initialisation type mismatch", /* 185 */
245 "bit-field initialisation is illegal in traditional C", /* 186 */
246 "non-null byte ignored in string initializer", /* 187 */
247 "no automatic aggregate initialization in traditional C", /* 188 */
248 "assignment of struct/union illegal in traditional C", /* 189 */
249 "empty array declaration: %s", /* 190 */
250 "%s set but not used in function %s", /* 191 */
251 "%s unused in function %s", /* 192 */
252 "statement not reached", /* 193 */
253 "label %s redefined", /* 194 */
254 "case not in switch", /* 195 */
255 "case label affected by conversion", /* 196 */
256 "non-constant case expression", /* 197 */
257 "non-integral case expression", /* 198 */
258 "duplicate case in switch: %ld", /* 199 */
259 "duplicate case in switch: %lu", /* 200 */
260 "default outside switch", /* 201 */
261 "duplicate default in switch", /* 202 */
262 "case label must be of type `int' in traditional C", /* 203 */
263 "controlling expressions must have scalar type", /* 204 */
264 "switch expression must have integral type", /* 205 */
265 "enumeration value(s) not handled in switch", /* 206 */
266 "loop not entered at top", /* 207 */
267 "break outside loop or switch", /* 208 */
268 "continue outside loop", /* 209 */
269 "enum type mismatch in initialisation", /* 210 */
270 "return value type mismatch", /* 211 */
271 "cannot return incomplete type", /* 212 */
272 "void function %s cannot return value", /* 213 */
273 "function %s expects to return value", /* 214 */
274 "function implicitly declared to return int", /* 215 */
275 "function %s has return (e); and return;", /* 216 */
276 "function %s falls off bottom without returning value", /* 217 */
277 "ANSI C treats constant as unsigned, op %s", /* 218 */
278 "concatenated strings are illegal in traditional C", /* 219 */
279 "fallthrough on case statement", /* 220 */
280 "initialisation of unsigned with negative constant", /* 221 */
281 "conversion of negative constant to unsigned type", /* 222 */
282 "end-of-loop code not reached", /* 223 */
283 "cannot recover from previous errors", /* 224 */
284 "static function called but not defined: %s()", /* 225 */
285 "static variable %s unused", /* 226 */
286 "const object %s should have initializer", /* 227 */
287 "function cannot return const or volatile object", /* 228 */
288 "questionable conversion of function pointer", /* 229 */
289 "nonportable character comparison, op %s", /* 230 */
290 "argument %s unused in function %s", /* 231 */
291 "label %s unused in function %s", /* 232 */
292 "struct %s never defined", /* 233 */
293 "union %s never defined", /* 234 */
294 "enum %s never defined", /* 235 */
295 "static function %s unused", /* 236 */
296 "redeclaration of formal parameter %s", /* 237 */
297 "initialisation of union is illegal in traditional C", /* 238 */
298 "constant argument to NOT", /* 239 */
299 "assignment of different structures", /* 240 */
300 "dubious operation on enum, op %s", /* 241 */
301 "combination of '%s' and '%s', op %s", /* 242 */
302 "dubious comparison of enums, op %s", /* 243 */
303 "illegal structure pointer combination", /* 244 */
304 "illegal structure pointer combination, op %s", /* 245 */
305 "dubious conversion of enum to '%s'", /* 246 */
306 "pointer casts may be troublesome", /* 247 */
307 "floating-point constant out of range", /* 248 */
308 "syntax error", /* 249 */
309 "unknown character \\%o", /* 250 */
310 "malformed integer constant", /* 251 */
311 "integer constant out of range", /* 252 */
312 "unterminated character constant", /* 253 */
313 "newline in string or char constant", /* 254 */
314 "undefined or invalid # directive", /* 255 */
315 "unterminated comment", /* 256 */
316 "extra characters in lint comment", /* 257 */
317 "unterminated string constant", /* 258 */
318 "conversion to '%s' due to prototype, arg #%d", /* 259 */
319 "previous declaration of %s", /* 260 */
320 "previous definition of %s", /* 261 */
321 "\\\" inside character constants undefined in traditional C", /* 262 */
322 "\\? undefined in traditional C", /* 263 */
323 "\\v undefined in traditional C", /* 264 */
324 "%s C does not support 'long long'", /* 265 */
325 "'long double' is illegal in traditional C", /* 266 */
326 "shift equal to size of object", /* 267 */
327 "variable declared inline: %s", /* 268 */
328 "argument declared inline: %s", /* 269 */
329 "function prototypes are illegal in traditional C", /* 270 */
330 "switch expression must be of type `int' in traditional C", /* 271 */
331 "empty translation unit", /* 272 */
332 "bit-field type '%s' invalid in ANSI C", /* 273 */
333 "ANSI C forbids comparison of %s with %s", /* 274 */
334 "cast discards 'const' from pointer target type", /* 275 */
336 "initialisation of '%s' with '%s'", /* 277 */
337 "combination of '%s' and '%s', arg #%d", /* 278 */
338 "combination of '%s' and '%s' in return", /* 279 */
339 "must be outside function: /* %s */", /* 280 */
340 "duplicate use of /* %s */", /* 281 */
341 "must precede function definition: /* %s */", /* 282 */
342 "argument number mismatch with directive: /* %s */", /* 283 */
343 "fallthrough on default statement", /* 284 */
344 "prototype declaration", /* 285 */
345 "function definition is not a prototype", /* 286 */
346 "function declaration is not a prototype", /* 287 */
347 "dubious use of /* VARARGS */ with /* %s */", /* 288 */
348 "can't be used together: /* PRINTFLIKE */ /* SCANFLIKE */", /* 289 */
349 "static function %s declared but not defined", /* 290 */
350 "invalid multibyte character", /* 291 */
351 "cannot concatenate wide and regular string literals", /* 292 */
352 "argument %d must be 'char *' for PRINTFLIKE/SCANFLIKE", /* 293 */
353 "multi-character character constant", /* 294 */
354 "conversion of '%s' to '%s' is out of range, arg #%d", /* 295 */
355 "conversion of negative constant to unsigned type, arg #%d", /* 296 */
356 "conversion to '%s' may sign-extend incorrectly, arg #%d", /* 297 */
357 "conversion from '%s' to '%s' may lose accuracy, arg #%d", /* 298 */
358 "prototype does not match old style definition, arg #%d", /* 299 */
359 "old style definition", /* 300 */
360 "array of incomplete type", /* 301 */
361 "%s returns pointer to automatic object", /* 302 */
362 "ANSI C forbids conversion of %s to %s", /* 303 */
363 "ANSI C forbids conversion of %s to %s, arg #%d", /* 304 */
364 "ANSI C forbids conversion of %s to %s, op %s", /* 305 */
365 "constant truncated by conversion, op %s", /* 306 */
366 "static variable %s set but not used", /* 307 */
368 "extra bits set to 0 in conversion of '%s' to '%s', op %s", /* 309 */
369 "symbol renaming can't be used on function arguments", /* 310 */
370 "symbol renaming can't be used on automatic variables", /* 311 */
371 "%s C does not support // comments", /* 312 */
372 "struct or union member name in initializer is a C9X feature",/* 313 */
373 "%s is not a structure or a union", /* 314 */
374 "GCC style struct or union member name in initializer", /* 315 */
375 "__FUNCTION__ is a GCC extension", /* 316 */
376 "__func__ is a C9X feature", /* 317 */
377 "variable array dimension is a C99/GCC extension", /* 318 */
378 "compound literals are a C9X/GCC extension", /* 319 */
379 "({ }) is a GCC extension", /* 320 */
380 "array initializer with designators is a C9X feature", /* 321 */
381 "zero sized array is a C99 extension", /* 322 */
385 * print a list of the messages with their ids
392 for (i = 0; i < sizeof(msgs) / sizeof(msgs[0]); i++)
393 printf("%zu\t%s\n", i, msgs[i]);
397 * If Fflag is not set lbasename() returns a pointer to the last
398 * component of the path, otherwise it returns the argument.
401 lbasename(const char *path)
403 const char *cp, *cp1, *cp2;
408 cp = cp1 = cp2 = path;
409 while (*cp != '\0') {
415 return (*cp1 == '\0' ? cp2 : cp1);
419 verror( int n, va_list ap)
423 if (ERR_ISSET(n, &msgset))
426 fn = lbasename(curr_pos.p_file);
427 (void)printf("%s(%d): ", fn, curr_pos.p_line);
428 (void)vprintf(msgs[n], ap);
429 (void)printf(" [%d]\n", n);
434 vwarning( int n, va_list ap)
438 if (ERR_ISSET(n, &msgset))
442 /* this warning is suppressed by a LINTED comment */
445 fn = lbasename(curr_pos.p_file);
446 (void)printf("%s(%d): warning: ", fn, curr_pos.p_line);
447 (void)vprintf(msgs[n], ap);
448 (void)printf(" [%d]\n", n);
464 lerror(const char *file, int line, const char *msg, ...)
470 fn = lbasename(curr_pos.p_file);
471 (void)fprintf(stderr, "%s(%d): lint error: %s, %d", fn, curr_pos.p_line,
473 (void)vfprintf(stderr, msg, ap);
474 (void)fprintf(stderr, "\n");
495 if (ERR_ISSET(n, &msgset))
499 fn = lbasename(curr_pos.p_file);
500 (void)printf("%s(%d): ", fn, curr_pos.p_line);
501 (void)vprintf(msgs[n], ap);
502 (void)printf(" [%d]\n", n);
507 * XXX I think the logic is possibly somewhat screwed up here. The
508 * question is, how do we want to interpret the -s and -S flags going
509 * forward? We need to answer that and then we can fix this to be
510 * "right"... [perry, 2 Nov 2002]
519 if (sflag && !(Sflag || gflag)) {
522 } else if (!sflag && (Sflag || gflag)) {
540 if (sflag && !gflag) {
543 } else if (!sflag && gflag) {