515 lines
22 KiB
C
515 lines
22 KiB
C
/* $NetBSD: err.c,v 1.17 2002/01/31 19:36:54 tv Exp $ */
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/*
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* Copyright (c) 1994, 1995 Jochen Pohl
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* All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Jochen Pohl for
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* The NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(__RCSID) && !defined(lint)
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__RCSID("$NetBSD: err.c,v 1.17 2002/01/31 19:36:54 tv Exp $");
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#endif
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include "lint1.h"
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/* number of errors found */
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int nerr;
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/* number of syntax errors */
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int sytxerr;
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static const char *lbasename(const char *);
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static void verror(int, va_list);
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static void vwarning(int, va_list);
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const char *msgs[] = {
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"syntax error: empty declaration", /* 0 */
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"old style declaration; add int", /* 1 */
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"empty declaration", /* 2 */
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"%s declared in argument declaration list", /* 3 */
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"illegal type combination", /* 4 */
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"modifying typedef with '%s'; only qualifiers allowed", /* 5 */
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"use 'double' instead of 'long float'", /* 6 */
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"only one storage class allowed", /* 7 */
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"illegal storage class", /* 8 */
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"only register valid as formal parameter storage class", /* 9 */
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"duplicate '%s'", /* 10 */
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"bit-field initializer out of range", /* 11 */
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"compiler takes size of function", /* 12 */
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"incomplete enum type: %s", /* 13 */
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"compiler takes alignment of function", /* 14 */
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"function returns illegal type", /* 15 */
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"array of function is illegal", /* 16 */
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"null dimension", /* 17 */
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"illegal use of 'void'", /* 18 */
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"void type for %s", /* 19 */
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"zero or negative array dimension", /* 20 */
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"redeclaration of formal parameter %s", /* 21 */
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"incomplete or misplaced function definition", /* 22 */
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"undefined label %s", /* 23 */
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"cannot initialize function: %s", /* 24 */
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"cannot initialize typedef: %s", /* 25 */
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"cannot initialize extern declaration: %s", /* 26 */
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"redeclaration of %s", /* 27 */
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"redefinition of %s", /* 28 */
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"previously declared extern, becomes static: %s", /* 29 */
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"redeclaration of %s; ANSI C requires static", /* 30 */
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"incomplete structure or union %s: %s", /* 31 */
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"argument type defaults to 'int': %s", /* 32 */
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"duplicate member name: %s", /* 33 */
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"nonportable bit-field type", /* 34 */
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"illegal bit-field type", /* 35 */
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"illegal bit-field size", /* 36 */
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"zero size bit-field", /* 37 */
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"function illegal in structure or union", /* 38 */
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"illegal zero sized structure member: %s", /* 39 */
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"unknown size: %s", /* 40 */
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"illegal use of bit-field", /* 41 */
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"forward reference to enum type", /* 42 */
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"redefinition hides earlier one: %s", /* 43 */
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"declaration introduces new type in ANSI C: %s %s", /* 44 */
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"base type is really '%s %s'", /* 45 */
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"(%s) tag redeclared", /* 46 */
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"zero sized %s", /* 47 */
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"overflow in enumeration values: %s", /* 48 */
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"struct or union member must be named", /* 49 */
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"a function is declared as an argument: %s", /* 50 */
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"parameter mismatch: %d declared, %d defined", /* 51 */
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"cannot initialize parameter: %s", /* 52 */
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"declared argument %s is missing", /* 53 */
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"trailing ',' prohibited in enum declaration", /* 54 */
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"integral constant expression expected", /* 55 */
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"integral constant too large", /* 56 */
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"enumeration constant hides parameter: %s", /* 57 */
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"type does not match prototype: %s", /* 58 */
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"formal parameter lacks name: param #%d", /* 59 */
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"void must be sole parameter", /* 60 */
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"void parameter cannot have name: %s", /* 61 */
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"function prototype parameters must have types", /* 62 */
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"prototype does not match old-style definition", /* 63 */
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"()-less function definition", /* 64 */
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"%s has no named members", /* 65 */
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"syntax requires ';' after last struct/union member", /* 66 */
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"cannot return incomplete type", /* 67 */
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"typedef already qualified with '%s'", /* 68 */
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"inappropriate qualifiers with 'void'", /* 69 */
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"%soperand of '%s' is unsigned in ANSI C", /* 70 */
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"too many characters in character constant", /* 71 */
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"typedef declares no type name", /* 72 */
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"empty character constant", /* 73 */
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"no hex digits follow \\x", /* 74 */
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"overflow in hex escape", /* 75 */
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"character escape does not fit in character", /* 76 */
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"bad octal digit %c", /* 77 */
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"nonportable character escape", /* 78 */
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"dubious escape \\%c", /* 79 */
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"dubious escape \\%o", /* 80 */
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"\\a undefined in traditional C", /* 81 */
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"\\x undefined in traditional C", /* 82 */
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"storage class after type is obsolescent", /* 83 */
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"ANSI C requires formal parameter before '...'", /* 84 */
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"dubious tag declaration: %s %s", /* 85 */
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"automatic hides external declaration: %s", /* 86 */
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"static hides external declaration: %s", /* 87 */
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"typedef hides external declaration: %s", /* 88 */
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"typedef redeclared: %s", /* 89 */
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"inconsistent redeclaration of extern: %s", /* 90 */
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"declaration hides parameter: %s", /* 91 */
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"inconsistent redeclaration of static: %s", /* 92 */
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"dubious static function at block level: %s", /* 93 */
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"function has illegal storage class: %s", /* 94 */
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"declaration hides earlier one: %s", /* 95 */
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"cannot dereference non-pointer type", /* 96 */
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"suffix U is illegal in traditional C", /* 97 */
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"suffixes F and L are illegal in traditional C", /* 98 */
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"%s undefined", /* 99 */
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"unary + is illegal in traditional C", /* 100 */
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"undefined struct/union member: %s", /* 101 */
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"illegal member use: %s", /* 102 */
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"left operand of '.' must be struct/union object", /* 103 */
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"left operand of '->' must be pointer to struct/union", /* 104 */
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"non-unique member requires struct/union %s", /* 105 */
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"left operand of '->' must be pointer", /* 106 */
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"operands of '%s' have incompatible types", /* 107 */
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"operand of '%s' has incompatible type", /* 108 */
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"void type illegal in expression", /* 109 */
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"pointer to function is not allowed here", /* 110 */
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"unacceptable operand of '%s'", /* 111 */
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"cannot take address of bit-field", /* 112 */
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"cannot take address of register %s", /* 113 */
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"%soperand of '%s' must be lvalue", /* 114 */
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"%soperand of '%s' must be modifiable lvalue", /* 115 */
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"illegal pointer subtraction", /* 116 */
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"bitwise operation on signed value possibly nonportable", /* 117 */
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"semantics of '%s' change in ANSI C; use explicit cast", /* 118 */
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"conversion of '%s' to '%s' is out of range", /* 119 */
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"bitwise operation on signed value nonportable", /* 120 */
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"negative shift", /* 121 */
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"shift greater than size of object", /* 122 */
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"illegal combination of pointer and integer, op %s", /* 123 */
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"illegal pointer combination, op %s", /* 124 */
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"ANSI C forbids ordered comparisons of pointers to functions",/* 125 */
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"incompatible types in conditional", /* 126 */
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"'&' before array or function: ignored", /* 127 */
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"operands have incompatible pointer types, op %s", /* 128 */
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"expression has null effect", /* 129 */
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"enum type mismatch, op %s", /* 130 */
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"conversion to '%s' may sign-extend incorrectly", /* 131 */
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"conversion from '%s' may lose accuracy", /* 132 */
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"conversion of pointer to '%s' loses bits", /* 133 */
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"conversion of pointer to '%s' may lose bits", /* 134 */
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"possible pointer alignment problem", /* 135 */
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"cannot do pointer arithmetic on operand of unknown size", /* 136 */
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"use of incomplete enum type, op %s", /* 137 */
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"unknown operand size, op %s", /* 138 */
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"division by 0", /* 139 */
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"modulus by 0", /* 140 */
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"integer overflow detected, op %s", /* 141 */
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"floating point overflow detected, op %s", /* 142 */
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"cannot take size of incomplete type", /* 143 */
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"cannot take size of function", /* 144 */
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"cannot take size of bit-field", /* 145 */
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"cannot take size of void", /* 146 */
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"invalid cast expression", /* 147 */
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"improper cast of void expression", /* 148 */
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"illegal function", /* 149 */
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"argument mismatch: %d arg%s passed, %d expected", /* 150 */
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"void expressions may not be arguments, arg #%d", /* 151 */
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"argument cannot have unknown size, arg #%d", /* 152 */
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"argument has incompatible pointer type, arg #%d", /* 153 */
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"illegal combination of pointer and integer, arg #%d", /* 154 */
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"argument is incompatible with prototype, arg #%d", /* 155 */
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"enum type mismatch, arg #%d", /* 156 */
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"ANSI C treats constant as unsigned", /* 157 */
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"%s may be used before set", /* 158 */
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"assignment in conditional context", /* 159 */
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"operator '==' found where '=' was expected", /* 160 */
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"constant in conditional context", /* 161 */
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"comparison of %s with %s, op %s", /* 162 */
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"a cast does not yield an lvalue", /* 163 */
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"assignment of negative constant to unsigned type", /* 164 */
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"constant truncated by assignment", /* 165 */
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"precision lost in bit-field assignment", /* 166 */
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"array subscript cannot be negative: %ld", /* 167 */
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"array subscript cannot be > %d: %ld", /* 168 */
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"precedence confusion possible: parenthesize!", /* 169 */
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"first operand must have scalar type, op ? :", /* 170 */
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"assignment type mismatch", /* 171 */
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"too many struct/union initializers", /* 172 */
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"too many array initializers", /* 173 */
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"too many initializers", /* 174 */
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"initialisation of an incomplete type", /* 175 */
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"invalid initializer", /* 176 */
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"non-constant initializer", /* 177 */
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"initializer does not fit", /* 178 */
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"cannot initialize struct/union with no named member", /* 179 */
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"bit-field initializer does not fit", /* 180 */
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"{}-enclosed initializer required", /* 181 */
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"incompatible pointer types", /* 182 */
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"illegal combination of pointer and integer", /* 183 */
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"illegal pointer combination", /* 184 */
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"initialisation type mismatch", /* 185 */
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"bit-field initialisation is illegal in traditional C", /* 186 */
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"non-null byte ignored in string initializer", /* 187 */
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"no automatic aggregate initialization in traditional C", /* 188 */
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"assignment of struct/union illegal in traditional C", /* 189 */
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"empty array declaration: %s", /* 190 */
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"%s set but not used in function %s", /* 191 */
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"%s unused in function %s", /* 192 */
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"statement not reached", /* 193 */
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"label %s redefined", /* 194 */
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"case not in switch", /* 195 */
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"case label affected by conversion", /* 196 */
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"non-constant case expression", /* 197 */
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"non-integral case expression", /* 198 */
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"duplicate case in switch: %ld", /* 199 */
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"duplicate case in switch: %lu", /* 200 */
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"default outside switch", /* 201 */
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"duplicate default in switch", /* 202 */
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"case label must be of type `int' in traditional C", /* 203 */
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"controlling expressions must have scalar type", /* 204 */
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"switch expression must have integral type", /* 205 */
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"enumeration value(s) not handled in switch", /* 206 */
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"loop not entered at top", /* 207 */
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"break outside loop or switch", /* 208 */
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"continue outside loop", /* 209 */
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"enum type mismatch in initialisation", /* 210 */
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"return value type mismatch", /* 211 */
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"cannot return incomplete type", /* 212 */
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"void function %s cannot return value", /* 213 */
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"function %s expects to return value", /* 214 */
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"function implicitly declared to return int", /* 215 */
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"function %s has return (e); and return;", /* 216 */
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"function %s falls off bottom without returning value", /* 217 */
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"ANSI C treats constant as unsigned, op %s", /* 218 */
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"concatenated strings are illegal in traditional C", /* 219 */
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"fallthrough on case statement", /* 220 */
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"initialisation of unsigned with negative constant", /* 221 */
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"conversion of negative constant to unsigned type", /* 222 */
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"end-of-loop code not reached", /* 223 */
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"cannot recover from previous errors", /* 224 */
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"static function called but not defined: %s()", /* 225 */
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"static variable %s unused", /* 226 */
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"const object %s should have initializer", /* 227 */
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"function cannot return const or volatile object", /* 228 */
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"questionable conversion of function pointer", /* 229 */
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"nonportable character comparison, op %s", /* 230 */
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"argument %s unused in function %s", /* 231 */
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"label %s unused in function %s", /* 232 */
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"struct %s never defined", /* 233 */
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"union %s never defined", /* 234 */
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"enum %s never defined", /* 235 */
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"static function %s unused", /* 236 */
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"redeclaration of formal parameter %s", /* 237 */
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"initialisation of union is illegal in traditional C", /* 238 */
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"constant argument to NOT", /* 239 */
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"assignment of different structures", /* 240 */
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"dubious operation on enum, op %s", /* 241 */
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"combination of '%s' and '%s', op %s", /* 242 */
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"dubious comparison of enums, op %s", /* 243 */
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"illegal structure pointer combination", /* 244 */
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"illegal structure pointer combination, op %s", /* 245 */
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"dubious conversion of enum to '%s'", /* 246 */
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"pointer casts may be troublesome", /* 247 */
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"floating-point constant out of range", /* 248 */
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"syntax error", /* 249 */
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"unknown character \\%o", /* 250 */
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"malformed integer constant", /* 251 */
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"integer constant out of range", /* 252 */
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"unterminated character constant", /* 253 */
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"newline in string or char constant", /* 254 */
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"undefined or invalid # directive", /* 255 */
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"unterminated comment", /* 256 */
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"extra characters in lint comment", /* 257 */
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"unterminated string constant", /* 258 */
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"conversion to '%s' due to prototype, arg #%d", /* 259 */
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"previous declaration of %s", /* 260 */
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"previous definition of %s", /* 261 */
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"\\\" inside character constants undefined in traditional C", /* 262 */
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"\\? undefined in traditional C", /* 263 */
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"\\v undefined in traditional C", /* 264 */
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"%s C does not support 'long long'", /* 265 */
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"'long double' is illegal in traditional C", /* 266 */
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"shift equal to size of object", /* 267 */
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"variable declared inline: %s", /* 268 */
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"argument declared inline: %s", /* 269 */
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"function prototypes are illegal in traditional C", /* 270 */
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"switch expression must be of type `int' in traditional C", /* 271 */
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"empty translation unit", /* 272 */
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"bit-field type '%s' invalid in ANSI C", /* 273 */
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"ANSI C forbids comparison of %s with %s", /* 274 */
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"cast discards 'const' from pointer target type", /* 275 */
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"", /* 276 */
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"initialisation of '%s' with '%s'", /* 277 */
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"combination of '%s' and '%s', arg #%d", /* 278 */
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"combination of '%s' and '%s' in return", /* 279 */
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"must be outside function: /* %s */", /* 280 */
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"duplicate use of /* %s */", /* 281 */
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"must precede function definition: /* %s */", /* 282 */
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"argument number mismatch with directive: /* %s */", /* 283 */
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"fallthrough on default statement", /* 284 */
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"prototype declaration", /* 285 */
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"function definition is not a prototype", /* 286 */
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"function declaration is not a prototype", /* 287 */
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"dubious use of /* VARARGS */ with /* %s */", /* 288 */
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"can't be used together: /* PRINTFLIKE */ /* SCANFLIKE */", /* 289 */
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"static function %s declared but not defined", /* 290 */
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"invalid multibyte character", /* 291 */
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"cannot concatenate wide and regular string literals", /* 292 */
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"argument %d must be 'char *' for PRINTFLIKE/SCANFLIKE", /* 293 */
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"multi-character character constant", /* 294 */
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"conversion of '%s' to '%s' is out of range, arg #%d", /* 295 */
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"conversion of negative constant to unsigned type, arg #%d", /* 296 */
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"conversion to '%s' may sign-extend incorrectly, arg #%d", /* 297 */
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"conversion from '%s' may lose accuracy, arg #%d", /* 298 */
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"prototype does not match old style definition, arg #%d", /* 299 */
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"old style definition", /* 300 */
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"array of incomplete type", /* 301 */
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"%s returns pointer to automatic object", /* 302 */
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"ANSI C forbids conversion of %s to %s", /* 303 */
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"ANSI C forbids conversion of %s to %s, arg #%d", /* 304 */
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"ANSI C forbids conversion of %s to %s, op %s", /* 305 */
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"constant truncated by conversion, op %s", /* 306 */
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"static variable %s set but not used", /* 307 */
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"", /* 308 */
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"extra bits set to 0 in conversion of '%s' to '%s', op %s", /* 309 */
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"symbol renaming can't be used on function arguments", /* 310 */
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"symbol renaming can't be used on automatic variables", /* 311 */
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"%s C does not support // comments", /* 312 */
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};
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/*
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* print a list of the messages with their ids
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*/
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void
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msglist(void)
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{
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int i;
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for (i = 0; i < sizeof(msgs) / sizeof(msgs[0]); i++)
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printf("%d\t%s\n", i, msgs[i]);
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}
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/*
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* If Fflag is not set lbasename() returns a pointer to the last
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* component of the path, otherwise it returns the argument.
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*/
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static const char *
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lbasename(const char *path)
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{
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const char *cp, *cp1, *cp2;
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if (Fflag)
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return (path);
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cp = cp1 = cp2 = path;
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while (*cp != '\0') {
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if (*cp++ == '/') {
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cp2 = cp1;
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cp1 = cp;
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}
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}
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return (*cp1 == '\0' ? cp2 : cp1);
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}
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static void
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verror( int n, va_list ap)
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{
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const char *fn;
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if (ERR_ISSET(n, &msgset))
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return;
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fn = lbasename(curr_pos.p_file);
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(void)printf("%s(%d): ", fn, curr_pos.p_line);
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(void)vprintf(msgs[n], ap);
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(void)printf(" [%d]\n", n);
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nerr++;
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}
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static void
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vwarning( int n, va_list ap)
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{
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const char *fn;
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if (ERR_ISSET(n, &msgset))
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return;
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if (nowarn)
|
|
/* this warning is suppressed by a LINTED comment */
|
|
return;
|
|
|
|
fn = lbasename(curr_pos.p_file);
|
|
(void)printf("%s(%d): warning: ", fn, curr_pos.p_line);
|
|
(void)vprintf(msgs[n], ap);
|
|
(void)printf(" [%d]\n", n);
|
|
if (wflag)
|
|
nerr++;
|
|
}
|
|
|
|
void
|
|
error(int n, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, n);
|
|
verror(n, ap);
|
|
va_end(ap);
|
|
}
|
|
|
|
void
|
|
lerror(const char *msg, ...)
|
|
{
|
|
va_list ap;
|
|
const char *fn;
|
|
|
|
va_start(ap, msg);
|
|
fn = lbasename(curr_pos.p_file);
|
|
(void)fprintf(stderr, "%s(%d): lint error: ", fn, curr_pos.p_line);
|
|
(void)vfprintf(stderr, msg, ap);
|
|
(void)fprintf(stderr, "\n");
|
|
va_end(ap);
|
|
exit(1);
|
|
}
|
|
|
|
void
|
|
warning(int n, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, n);
|
|
vwarning(n, ap);
|
|
va_end(ap);
|
|
}
|
|
|
|
void
|
|
message(int n, ...)
|
|
{
|
|
va_list ap;
|
|
const char *fn;
|
|
|
|
if (ERR_ISSET(n, &msgset))
|
|
return;
|
|
|
|
va_start(ap, n);
|
|
fn = lbasename(curr_pos.p_file);
|
|
(void)printf("%s(%d): ", fn, curr_pos.p_line);
|
|
(void)vprintf(msgs[n], ap);
|
|
(void)printf(" [%d]\n", n);
|
|
va_end(ap);
|
|
}
|
|
|
|
int
|
|
gnuism(int n, ...)
|
|
{
|
|
va_list ap;
|
|
int msg;
|
|
|
|
va_start(ap, n);
|
|
if (sflag && !gflag) {
|
|
verror(n, ap);
|
|
msg = 1;
|
|
} else if (!sflag && gflag) {
|
|
msg = 0;
|
|
} else {
|
|
vwarning(n, ap);
|
|
msg = 1;
|
|
}
|
|
va_end(ap);
|
|
|
|
return (msg);
|
|
}
|