lint.h revision 1.42
1 /* $NetBSD: lint.h,v 1.42 2023/07/13 08:40:38 rillig Exp $ */ 2 3 /* 4 * Copyright (c) 1994, 1995 Jochen Pohl 5 * All Rights Reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 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 18 * The NetBSD Project. 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. 21 * 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. 32 */ 33 34 #if HAVE_NBTOOL_CONFIG_H 35 #include "nbtool_config.h" 36 #else 37 #define HAVE_DECL_SYS_SIGNAME 1 38 #endif 39 40 #include <sys/types.h> 41 #include <ctype.h> 42 #include <err.h> 43 #include <inttypes.h> 44 #include <stdbool.h> 45 #include <stddef.h> 46 #include <stdio.h> 47 48 #include "param.h" 49 50 #if defined(IS_LINT1) || defined(IS_LINT2) 51 /* 52 * Type specifiers, used in type structures (type_t) and elsewhere. 53 */ 54 typedef enum { 55 NO_TSPEC = 0, 56 SIGNED, /* keyword "signed", only used in the parser */ 57 UNSIGN, /* keyword "unsigned", only used in the parser */ 58 BOOL, /* _Bool */ 59 CHAR, /* char */ 60 SCHAR, /* signed char */ 61 UCHAR, /* unsigned char */ 62 SHORT, /* (signed) short */ 63 USHORT, /* unsigned short */ 64 INT, /* (signed) int */ 65 UINT, /* unsigned int */ 66 LONG, /* (signed) long */ 67 ULONG, /* unsigned long */ 68 LLONG, /* (signed) long long */ 69 ULLONG, /* unsigned long long */ 70 #ifdef INT128_SIZE 71 INT128, /* (signed) __int128_t */ 72 UINT128, /* __uint128_t */ 73 #endif 74 FLOAT, /* float */ 75 DOUBLE, /* double or, with tflag, long float */ 76 LDOUBLE, /* long double */ 77 COMPLEX, /* keyword "_Complex", only used in the parser */ 78 FCOMPLEX, /* float _Complex */ 79 DCOMPLEX, /* double _Complex */ 80 LCOMPLEX, /* long double _Complex */ 81 VOID, /* void */ 82 STRUCT, /* structure tag */ 83 UNION, /* union tag */ 84 ENUM, /* enum tag */ 85 PTR, /* pointer */ 86 ARRAY, /* array */ 87 FUNC, /* function */ 88 #define NTSPEC ((int)FUNC + 1) 89 } tspec_t; 90 91 92 /* 93 * size of types, name and classification 94 */ 95 typedef struct { 96 #ifdef IS_LINT1 97 unsigned int tt_size_in_bits; 98 enum rank_kind { 99 RK_NONE, 100 RK_INTEGER, 101 RK_FLOATING, 102 RK_COMPLEX, 103 } tt_rank_kind; 104 unsigned int tt_rank_value; /* relative size of the type; depends 105 * on pflag and PTRDIFF_TSPEC */ 106 #endif 107 tspec_t tt_signed_counterpart; 108 tspec_t tt_unsigned_counterpart; 109 bool tt_is_integer:1; /* integer type */ 110 #ifdef IS_LINT1 111 bool tt_is_uinteger:1; /* unsigned integer type */ 112 bool tt_is_floating:1; /* floating point type */ 113 bool tt_is_arithmetic:1; /* arithmetic type */ 114 bool tt_is_scalar:1; /* scalar type */ 115 bool tt_is_complex:1; /* complex type */ 116 #endif 117 const char *tt_name; /* name of the type */ 118 } ttab_t; 119 120 extern ttab_t ttab[]; 121 122 static inline const ttab_t * 123 type_properties(tspec_t t) { 124 return ttab + t; 125 } 126 127 #define size_in_bits(t) (type_properties(t)->tt_size_in_bits) 128 #define signed_type(t) (type_properties(t)->tt_signed_counterpart) 129 #define unsigned_type(t) (type_properties(t)->tt_unsigned_counterpart) 130 #define is_integer(t) (type_properties(t)->tt_is_integer) 131 #define is_uinteger(t) (type_properties(t)->tt_is_uinteger) 132 #define is_floating(t) (type_properties(t)->tt_is_floating) 133 #define is_arithmetic(t) (type_properties(t)->tt_is_arithmetic) 134 #define is_complex(t) (type_properties(t)->tt_is_complex) 135 #define is_scalar(t) (type_properties(t)->tt_is_scalar) 136 137 138 typedef enum { 139 NODECL, /* not declared until now */ 140 DECL, /* declared */ 141 TDEF, /* tentative defined */ 142 DEF /* defined */ 143 } def_t; 144 145 /* Some data used for the output buffer. */ 146 typedef struct ob { 147 char *o_buf; /* buffer */ 148 char *o_end; /* first byte after buffer */ 149 size_t o_len; /* length of buffer */ 150 char *o_next; /* next free byte in buffer */ 151 } ob_t; 152 153 #if defined(IS_LINT1) 154 typedef struct lint1_type type_t; 155 #else 156 typedef struct lint2_type type_t; 157 #endif 158 #endif 159 160 #include "externs.h" 161 162 static inline bool 163 ch_isalnum(char ch) { return isalnum((unsigned char)ch) != 0; } 164 static inline bool 165 ch_isdigit(char ch) { return isdigit((unsigned char)ch) != 0; } 166 static inline bool 167 ch_isprint(char ch) { return isprint((unsigned char)ch) != 0; } 168 static inline bool 169 ch_isspace(char ch) { return isspace((unsigned char)ch) != 0; } 170 static inline bool 171 ch_isupper(char ch) { return isupper((unsigned char)ch) != 0; } 172
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