lint.h revision 1.36 1 /* $NetBSD: lint.h,v 1.36 2023/05/22 12:55:04 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 /*
51 * Type specifiers, used in type structures (type_t) and elsewhere.
52 */
53 typedef enum {
54 NO_TSPEC = 0,
55 SIGNED, /* keyword "signed", only used in the parser */
56 UNSIGN, /* keyword "unsigned", only used in the parser */
57 BOOL, /* _Bool */
58 CHAR, /* char */
59 SCHAR, /* signed char */
60 UCHAR, /* unsigned char */
61 SHORT, /* (signed) short */
62 USHORT, /* unsigned short */
63 INT, /* (signed) int */
64 UINT, /* unsigned int */
65 LONG, /* (signed) long */
66 ULONG, /* unsigned long */
67 QUAD, /* (signed) long long */
68 UQUAD, /* unsigned long long */
69 #ifdef INT128_SIZE
70 INT128, /* (signed) __int128_t */
71 UINT128, /* __uint128_t */
72 #endif
73 FLOAT, /* float */
74 DOUBLE, /* double or, with tflag, long float */
75 LDOUBLE, /* long double */
76 VOID, /* void */
77 STRUCT, /* structure tag */
78 UNION, /* union tag */
79 ENUM, /* enum tag */
80 PTR, /* pointer */
81 ARRAY, /* array */
82 FUNC, /* function */
83 COMPLEX, /* keyword "_Complex", only used in the parser */
84 FCOMPLEX, /* float _Complex */
85 DCOMPLEX, /* double _Complex */
86 LCOMPLEX /* long double _Complex */
87 #define NTSPEC (LCOMPLEX + 1)
88 } tspec_t;
89
90
91 /*
92 * size of types, name and classification
93 */
94 typedef struct {
95 #ifdef IS_LINT1
96 unsigned int tt_size_in_bits;
97 unsigned int tt_portable_size_in_bits; /* different from
98 * tt_size_in_bits if pflag is set */
99 #endif
100 tspec_t tt_signed_counterpart;
101 tspec_t tt_unsigned_counterpart;
102 bool tt_is_integer:1; /* integer type */
103 #ifdef IS_LINT1
104 bool tt_is_uinteger:1; /* unsigned integer type */
105 bool tt_is_floating:1; /* floating point type */
106 bool tt_is_arithmetic:1; /* arithmetic type */
107 bool tt_is_scalar:1; /* scalar type */
108 bool tt_is_complex:1; /* complex type */
109 #endif
110 const char *tt_name; /* name of the type */
111 } ttab_t;
112
113 #define size_in_bits(t) (ttab[t].tt_size_in_bits)
114 #define portable_size_in_bits(t) (ttab[t].tt_portable_size_in_bits)
115 #define signed_type(t) (ttab[t].tt_signed_counterpart)
116 #define unsigned_type(t) (ttab[t].tt_unsigned_counterpart)
117 #define is_integer(t) (ttab[t].tt_is_integer)
118 #define is_uinteger(t) (ttab[t].tt_is_uinteger)
119 #define is_floating(t) (ttab[t].tt_is_floating)
120 #define is_arithmetic(t) (ttab[t].tt_is_arithmetic)
121 #define is_complex(t) (ttab[t].tt_is_complex)
122 #define is_scalar(t) (ttab[t].tt_is_scalar)
123
124 #if defined(IS_LINT1) || defined(IS_LINT2)
125 extern ttab_t ttab[];
126 #endif
127
128
129 typedef enum {
130 NODECL, /* not declared until now */
131 DECL, /* declared */
132 TDEF, /* tentative defined */
133 DEF /* defined */
134 } def_t;
135
136 /* Some data used for the output buffer. */
137 typedef struct ob {
138 char *o_buf; /* buffer */
139 char *o_end; /* first byte after buffer */
140 size_t o_len; /* length of buffer */
141 char *o_next; /* next free byte in buffer */
142 } ob_t;
143
144 #if defined(IS_LINT1)
145 typedef struct lint1_type type_t;
146 #else
147 typedef struct lint2_type type_t;
148 #endif
149
150 #include "externs.h"
151
152 static inline bool
153 ch_isalnum(char ch) { return isalnum((unsigned char)ch) != 0; }
154 static inline bool
155 ch_isdigit(char ch) { return isdigit((unsigned char)ch) != 0; }
156 static inline bool
157 ch_isprint(char ch) { return isprint((unsigned char)ch) != 0; }
158 static inline bool
159 ch_isspace(char ch) { return isspace((unsigned char)ch) != 0; }
160 static inline bool
161 ch_isupper(char ch) { return isupper((unsigned char)ch) != 0; }
162