xref: /freebsd/contrib/flex/src/flexint.h (revision 7e382390)
1 /* flex integer type definitions */
2 
3 #ifndef FLEXINT_H
4 #define FLEXINT_H
5 
6 /* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
7 
8 #if defined(__FreeBSD__) || \
9     (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
10 
11 /* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
12  * if you want the limit (max/min) macros for int types.
13  */
14 #ifndef __STDC_LIMIT_MACROS
15 #define __STDC_LIMIT_MACROS 1
16 #endif
17 
18 #include <inttypes.h>
19 typedef int8_t flex_int8_t;
20 typedef uint8_t flex_uint8_t;
21 typedef int16_t flex_int16_t;
22 typedef uint16_t flex_uint16_t;
23 typedef int32_t flex_int32_t;
24 typedef uint32_t flex_uint32_t;
25 #else
26 typedef signed char flex_int8_t;
27 typedef short int flex_int16_t;
28 typedef int flex_int32_t;
29 typedef unsigned char flex_uint8_t;
30 typedef unsigned short int flex_uint16_t;
31 typedef unsigned int flex_uint32_t;
32 
33 /* Limits of integral types. */
34 #ifndef INT8_MIN
35 #define INT8_MIN               (-128)
36 #endif
37 #ifndef INT16_MIN
38 #define INT16_MIN              (-32767-1)
39 #endif
40 #ifndef INT32_MIN
41 #define INT32_MIN              (-2147483647-1)
42 #endif
43 #ifndef INT8_MAX
44 #define INT8_MAX               (127)
45 #endif
46 #ifndef INT16_MAX
47 #define INT16_MAX              (32767)
48 #endif
49 #ifndef INT32_MAX
50 #define INT32_MAX              (2147483647)
51 #endif
52 #ifndef UINT8_MAX
53 #define UINT8_MAX              (255U)
54 #endif
55 #ifndef UINT16_MAX
56 #define UINT16_MAX             (65535U)
57 #endif
58 #ifndef UINT32_MAX
59 #define UINT32_MAX             (4294967295U)
60 #endif
61 
62 #ifndef SIZE_MAX
63 #define SIZE_MAX               (~(size_t)0)
64 #endif
65 
66 #endif /* ! C99 */
67 
68 #endif /* ! FLEXINT_H */
69