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private.h
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1 #ifndef PRIVATE_H
2 #define PRIVATE_H
3 
4 /*
5  * This file is in the public domain, so clarified as of
6  * 1996-06-05 by Arthur David Olson.
7  *
8  * IDENTIFICATION
9  * src/timezone/private.h
10  */
11 
12 /*
13  * This header is for use ONLY with the time conversion code.
14  * There is no guarantee that it will remain unchanged,
15  * or that it will remain at all.
16  * Do NOT copy it to any system include directory.
17  * Thank you!
18  */
19 
20 #include <limits.h> /* for CHAR_BIT et al. */
21 #include <sys/wait.h> /* for WIFEXITED and WEXITSTATUS */
22 #include <unistd.h> /* for F_OK and R_OK */
23 
24 #include "pgtime.h"
25 
26 /* This string was in the Factory zone through version 2016f. */
27 #define GRANDPARENTED "Local time zone must be set--see zic manual page"
28 
29 /*
30  * IANA has a bunch of HAVE_FOO #defines here, but in PG we want pretty
31  * much all of that to be done by PG's configure script.
32  */
33 
34 #ifndef ENOTSUP
35 #define ENOTSUP EINVAL
36 #endif
37 #ifndef EOVERFLOW
38 #define EOVERFLOW EINVAL
39 #endif
40 
41 #ifndef WIFEXITED
42 #define WIFEXITED(status) (((status) & 0xff) == 0)
43 #endif /* !defined WIFEXITED */
44 #ifndef WEXITSTATUS
45 #define WEXITSTATUS(status) (((status) >> 8) & 0xff)
46 #endif /* !defined WEXITSTATUS */
47 
48 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */
49 #define is_digit(c) ((unsigned)(c) - '0' <= 9)
50 
51 #ifndef SIZE_MAX
52 #define SIZE_MAX ((size_t) -1)
53 #endif
54 
55 /*
56  * SunOS 4.1.1 libraries lack remove.
57  */
58 
59 #ifndef remove
60 extern int unlink(const char *filename);
61 
62 #define remove unlink
63 #endif /* !defined remove */
64 
65 
66 /*
67  * Finally, some convenience items.
68  */
69 
70 #ifndef TYPE_BIT
71 #define TYPE_BIT(type) (sizeof (type) * CHAR_BIT)
72 #endif /* !defined TYPE_BIT */
73 
74 #ifndef TYPE_SIGNED
75 #define TYPE_SIGNED(type) (((type) -1) < 0)
76 #endif /* !defined TYPE_SIGNED */
77 
78 #define TWOS_COMPLEMENT(t) ((t) ~ (t) 0 < 0)
79 
80 /*
81  * Max and min values of the integer type T, of which only the bottom
82  * B bits are used, and where the highest-order used bit is considered
83  * to be a sign bit if T is signed.
84  */
85 #define MAXVAL(t, b) \
86  ((t) (((t) 1 << ((b) - 1 - TYPE_SIGNED(t))) \
87  - 1 + ((t) 1 << ((b) - 1 - TYPE_SIGNED(t)))))
88 #define MINVAL(t, b) \
89  ((t) (TYPE_SIGNED(t) ? - TWOS_COMPLEMENT(t) - MAXVAL(t, b) : 0))
90 
91 #ifndef INT_STRLEN_MAXIMUM
92 /*
93  * 302 / 1000 is log10(2.0) rounded up.
94  * Subtract one for the sign bit if the type is signed;
95  * add one for integer division truncation;
96  * add one more for a minus sign if the type is signed.
97  */
98 #define INT_STRLEN_MAXIMUM(type) \
99  ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \
100  1 + TYPE_SIGNED(type))
101 #endif /* !defined INT_STRLEN_MAXIMUM */
102 
103 /*
104  * INITIALIZE(x)
105  */
106 #define INITIALIZE(x) ((x) = 0)
107 
108 #undef _
109 #define _(msgid) (msgid)
110 
111 #ifndef YEARSPERREPEAT
112 #define YEARSPERREPEAT 400 /* years before a Gregorian repeat */
113 #endif /* !defined YEARSPERREPEAT */
114 
115 /*
116  * The Gregorian year averages 365.2425 days, which is 31556952 seconds.
117  */
118 
119 #ifndef AVGSECSPERYEAR
120 #define AVGSECSPERYEAR 31556952L
121 #endif /* !defined AVGSECSPERYEAR */
122 
123 #ifndef SECSPERREPEAT
124 #define SECSPERREPEAT ((int64) YEARSPERREPEAT * (int64) AVGSECSPERYEAR)
125 #endif /* !defined SECSPERREPEAT */
126 
127 #ifndef SECSPERREPEAT_BITS
128 #define SECSPERREPEAT_BITS 34 /* ceil(log2(SECSPERREPEAT)) */
129 #endif /* !defined SECSPERREPEAT_BITS */
130 
131 #endif /* !defined PRIVATE_H */
int unlink(const char *filename)
static char * filename
Definition: pg_dumpall.c:84