1 /* NetHack 3.6 integer.h $NHDT-Date: 1551901047 2019/03/06 19:37:27 $ $NHDT-Branch: NetHack-3.6.2-beta01 $:$NHDT-Revision: 1.7 $ */
2 /* Copyright (c) 2016 by Michael Allison */
3 /* NetHack may be freely redistributed. See license for details. */
5 /* integer.h -- provide sized integer types
7 * We try to sort out a way to provide sized integer types
8 * in here. The strong preference is to try and let a
9 * compiler-supplied header file set up the types.
11 * If your compiler is C99 conforming and sets a value of
12 * __STDC_VERSION__ >= 199901L, then <stdint.h> is supposed
13 * to be available for inclusion.
15 * If your compiler doesn't set __STDC_VERSION__ to indicate
16 * full conformance to C99, but does actually supply a suitable
17 * <stdint.h>, you can pass a compiler flag -DHAS_STDINT_H
18 * during build to cause the inclusion of <stdint.h> anyway.
20 * If <stdint.h> doesn't get included, then the code in the
21 * STDINT_WORKAROUND section of code is not skipped and will
22 * be used to set up the types.
24 * We acknowledge that some ongoing maintenance may be needed
25 * over time if people send us code updates for making the
26 * determination of whether <stdint.h> is available, or
27 * require adjustments to the base type used for some
28 * compiler/platform combinations.
35 /* DEC C (aka Compaq C for a while, HP C these days) for VMS is
36 classified as a freestanding implementation rather than a hosted one
37 and even though it claims to be C99, it does not provide <stdint.h>. */
38 #if defined(__DECC) && defined(VMS) && !defined(HAS_STDINT_H)
39 #define HAS_INTTYPES_H
42 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) \
43 && !defined(HAS_STDINT_H)
44 /* The compiler claims to conform to C99. Use stdint.h */
47 #if defined(__GNUC__) && defined(__INT64_MAX__) && !defined(HAS_STDINT_H)
55 #define SKIP_STDINT_WORKAROUND
59 #define SKIP_STDINT_WORKAROUND
63 #ifndef SKIP_STDINT_WORKAROUND /* !C99 */
65 * STDINT_WORKAROUND section begins here
67 typedef unsigned char uint8_t;
68 typedef short int16_t;
69 typedef unsigned short uint16_t;
71 #if defined(__WATCOMC__) && !defined(__386__)
72 /* Open Watcom providing a 16 bit build for MS-DOS or OS/2 */
73 /* int is 16 bits; use long for 32 bits */
74 typedef long int int32_t;
75 typedef unsigned long int uint32_t;
77 /* Otherwise, assume either a 32- or 64-bit compiler */
78 /* long may be 64 bits; use int for 32 bits */
80 typedef unsigned int uint32_t;
83 /* The only place where nethack cares about 64-bit integers is in the
84 Isaac64 random number generator. If your environment can't support
85 64-bit integers, you should comment out USE_ISAAC64 in config.h so
86 that the previous RNG gets used instead. Then this file will be
87 inhibited and it won't matter what the int64_t and uint64_t lines are. */
88 typedef long long int int64_t;
89 typedef unsigned long long int uint64_t;
93 /* Provide uint8, int16, uint16, int32, uint32, int64 and uint64 */
94 typedef uint8_t uint8;
95 typedef int16_t int16;
96 typedef uint16_t uint16;
97 typedef int32_t int32;
98 typedef uint32_t uint32;
99 typedef int64_t int64;
100 typedef uint64_t uint64;
102 #endif /* INTEGER_H */