C Standard Library Extensions  1.2.2
cxtypes.h
1 /*
2  * This file is part of the ESO C Extension Library
3  * Copyright (C) 2001-2017 European Southern Observatory
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18  */
19 
20 #ifndef _CX_TYPES_H
21 #define _CX_TYPES_H
22 
23 #include <cxconfig.h>
24 #include <cxmacros.h>
25 
26 
27 CX_BEGIN_DECLS
28 
29 /*
30  * Some mathematical constants. Some strict ISO C implementations
31  * don't provide them as symbols. The constants provide enough
32  * digits for the 128 bit IEEE quad
33  */
34 
35 #define CX_E 2.7182818284590452353602874713526625L
36 #define CX_LN2 0.6931471805599453094172321214581766L
37 #define CX_LN10 2.3025850929940456840179914546843642L
38 #define CX_PI 3.1415926535897932384626433832795029L
39 #define CX_PI_2 1.5707963267948966192313216916397514L
40 #define CX_PI_4 0.7853981633974483096156608458198757L
41 #define CX_SQRT2 1.4142135623730950488016887242096981L
42 
43 
44 /*
45  * Minimum and maximum constants for fixed size integer types
46  */
47 
48 #define CX_MININT8 ((cxint8) 0x80)
49 #define CX_MAXINT8 ((cxint8) 0x7f)
50 #define CX_MAXUINT8 ((cxuint8) 0xff)
51 
52 #define CX_MININT16 ((cxint16) 0x8000)
53 #define CX_MAXINT16 ((cxint16) 0x7fff)
54 #define CX_MAXUINT16 ((cxuint16) 0xffff)
55 
56 #define CX_MININT32 ((cxint32) 0x80000000)
57 #define CX_MAXINT32 ((cxint32) 0x7fffffff)
58 #define CX_MAXUINT32 ((cxuint32) 0xffffffff)
59 
60 #define CX_MININT64 ((cxint64) CX_INT64_CONSTANT(0x8000000000000000))
61 #define CX_MAXINT64 CX_INT64_CONSTANT(0x7fffffffffffffff)
62 #define CX_MAXUINT64 CX_INT64_CONSTANT(0xffffffffffffffffU)
63 
64 
65 /*
66  * For completeness: Definitions for standard types
67  */
68 
69 typedef char cxchar;
70 typedef short cxshort;
71 typedef int cxint;
72 typedef long cxlong;
73 typedef long long cxllong;
74 typedef cxint cxbool;
75 
76 typedef unsigned char cxuchar;
77 typedef unsigned short cxushort;
78 typedef unsigned int cxuint;
79 typedef unsigned long cxulong;
80 typedef unsigned long long cxullong;
81 typedef cxuchar cxbyte;
82 
83 typedef float cxfloat;
84 typedef double cxdouble;
85 
86 typedef void * cxptr;
87 typedef const void * cxcptr;
88 
89 
90 /*
91  * Generic, frequently used types.
92  */
93 
94 typedef cxint (*cx_compare_func) (cxcptr a, cxcptr b);
95 typedef cxint (*cx_compare_data_func) (cxcptr a, cxcptr b, cxptr data);
96 typedef cxbool (*cx_equal_func) (cxcptr a, cxcptr b);
97 typedef void (*cx_free_func) (cxptr data);
98 
99 CX_END_DECLS
100 
101 #endif /* _CX_TYPES_H */