[pcsx_rearmed.git] / deps / libchdr / deps / zstd-1.5.5 / lib / common / zstd_deps.h

/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 * All rights reserved.
 *
 * This source code is licensed under both the BSD-style license (found in the
 * LICENSE file in the root directory of this source tree) and the GPLv2 (found
 * in the COPYING file in the root directory of this source tree).
 * You may select, at your option, one of the above-listed licenses.
 */

/* This file provides common libc dependencies that zstd requires.
 * The purpose is to allow replacing this file with a custom implementation
 * to compile zstd without libc support.
 */

/* Need:
 * NULL
 * INT_MAX
 * UINT_MAX
 * ZSTD_memcpy()
 * ZSTD_memset()
 * ZSTD_memmove()
 */
#ifndef ZSTD_DEPS_COMMON
#define ZSTD_DEPS_COMMON

#include <limits.h>
#include <stddef.h>
#include <string.h>

#if defined(__GNUC__) && __GNUC__ >= 4
# define ZSTD_memcpy(d,s,l) __builtin_memcpy((d),(s),(l))
# define ZSTD_memmove(d,s,l) __builtin_memmove((d),(s),(l))
# define ZSTD_memset(p,v,l) __builtin_memset((p),(v),(l))
#else
# define ZSTD_memcpy(d,s,l) memcpy((d),(s),(l))
# define ZSTD_memmove(d,s,l) memmove((d),(s),(l))
# define ZSTD_memset(p,v,l) memset((p),(v),(l))
#endif

#endif /* ZSTD_DEPS_COMMON */

/* Need:
 * ZSTD_malloc()
 * ZSTD_free()
 * ZSTD_calloc()
 */
#ifdef ZSTD_DEPS_NEED_MALLOC
#ifndef ZSTD_DEPS_MALLOC
#define ZSTD_DEPS_MALLOC

#include <stdlib.h>

#define ZSTD_malloc(s) malloc(s)
#define ZSTD_calloc(n,s) calloc((n), (s))
#define ZSTD_free(p) free((p))

#endif /* ZSTD_DEPS_MALLOC */
#endif /* ZSTD_DEPS_NEED_MALLOC */

/*
 * Provides 64-bit math support.
 * Need:
 * U64 ZSTD_div64(U64 dividend, U32 divisor)
 */
#ifdef ZSTD_DEPS_NEED_MATH64
#ifndef ZSTD_DEPS_MATH64
#define ZSTD_DEPS_MATH64

#define ZSTD_div64(dividend, divisor) ((dividend) / (divisor))

#endif /* ZSTD_DEPS_MATH64 */
#endif /* ZSTD_DEPS_NEED_MATH64 */

/* Need:
 * assert()
 */
#ifdef ZSTD_DEPS_NEED_ASSERT
#ifndef ZSTD_DEPS_ASSERT
#define ZSTD_DEPS_ASSERT

#include <assert.h>

#endif /* ZSTD_DEPS_ASSERT */
#endif /* ZSTD_DEPS_NEED_ASSERT */

/* Need:
 * ZSTD_DEBUG_PRINT()
 */
#ifdef ZSTD_DEPS_NEED_IO
#ifndef ZSTD_DEPS_IO
#define ZSTD_DEPS_IO

#include <stdio.h>
#define ZSTD_DEBUG_PRINT(...) fprintf(stderr, __VA_ARGS__)

#endif /* ZSTD_DEPS_IO */
#endif /* ZSTD_DEPS_NEED_IO */

/* Only requested when <stdint.h> is known to be present.
 * Need:
 * intptr_t
 */
#ifdef ZSTD_DEPS_NEED_STDINT
#ifndef ZSTD_DEPS_STDINT
#define ZSTD_DEPS_STDINT

#include <stdint.h>

#endif /* ZSTD_DEPS_STDINT */
#endif /* ZSTD_DEPS_NEED_STDINT */
Commit	Line	Data
648db22b	1	/*
	2	* Copyright (c) Meta Platforms, Inc. and affiliates.
	3	* All rights reserved.
	4	*
	5	* This source code is licensed under both the BSD-style license (found in the
	6	* LICENSE file in the root directory of this source tree) and the GPLv2 (found
	7	* in the COPYING file in the root directory of this source tree).
	8	* You may select, at your option, one of the above-listed licenses.
	9	*/
	10
	11	/* This file provides common libc dependencies that zstd requires.
	12	* The purpose is to allow replacing this file with a custom implementation
	13	* to compile zstd without libc support.
	14	*/
	15
	16	/* Need:
	17	* NULL
	18	* INT_MAX
	19	* UINT_MAX
	20	* ZSTD_memcpy()
	21	* ZSTD_memset()
	22	* ZSTD_memmove()
	23	*/
	24	#ifndef ZSTD_DEPS_COMMON
	25	#define ZSTD_DEPS_COMMON
	26
	27	#include <limits.h>
	28	#include <stddef.h>
	29	#include <string.h>
	30
	31	#if defined(__GNUC__) && __GNUC__ >= 4
	32	# define ZSTD_memcpy(d,s,l) __builtin_memcpy((d),(s),(l))
	33	# define ZSTD_memmove(d,s,l) __builtin_memmove((d),(s),(l))
	34	# define ZSTD_memset(p,v,l) __builtin_memset((p),(v),(l))
	35	#else
	36	# define ZSTD_memcpy(d,s,l) memcpy((d),(s),(l))
	37	# define ZSTD_memmove(d,s,l) memmove((d),(s),(l))
	38	# define ZSTD_memset(p,v,l) memset((p),(v),(l))
	39	#endif
	40
	41	#endif /* ZSTD_DEPS_COMMON */
	42
	43	/* Need:
	44	* ZSTD_malloc()
	45	* ZSTD_free()
	46	* ZSTD_calloc()
	47	*/
	48	#ifdef ZSTD_DEPS_NEED_MALLOC
	49	#ifndef ZSTD_DEPS_MALLOC
	50	#define ZSTD_DEPS_MALLOC
	51
	52	#include <stdlib.h>
	53
	54	#define ZSTD_malloc(s) malloc(s)
	55	#define ZSTD_calloc(n,s) calloc((n), (s))
	56	#define ZSTD_free(p) free((p))
	57
	58	#endif /* ZSTD_DEPS_MALLOC */
	59	#endif /* ZSTD_DEPS_NEED_MALLOC */
	60
	61	/*
	62	* Provides 64-bit math support.
	63	* Need:
	64	* U64 ZSTD_div64(U64 dividend, U32 divisor)
65	*/
66	#ifdef ZSTD_DEPS_NEED_MATH64
67	#ifndef ZSTD_DEPS_MATH64
68	#define ZSTD_DEPS_MATH64
69
70	#define ZSTD_div64(dividend, divisor) ((dividend) / (divisor))
71
72	#endif /* ZSTD_DEPS_MATH64 */
73	#endif /* ZSTD_DEPS_NEED_MATH64 */
74
75	/* Need:
76	* assert()
77	*/
78	#ifdef ZSTD_DEPS_NEED_ASSERT
79	#ifndef ZSTD_DEPS_ASSERT
80	#define ZSTD_DEPS_ASSERT
81
82	#include <assert.h>
83
84	#endif /* ZSTD_DEPS_ASSERT */
85	#endif /* ZSTD_DEPS_NEED_ASSERT */
86
87	/* Need:
88	* ZSTD_DEBUG_PRINT()
89	*/
90	#ifdef ZSTD_DEPS_NEED_IO
91	#ifndef ZSTD_DEPS_IO
92	#define ZSTD_DEPS_IO
93
94	#include <stdio.h>
95	#define ZSTD_DEBUG_PRINT(...) fprintf(stderr, __VA_ARGS__)
96
97	#endif /* ZSTD_DEPS_IO */
98	#endif /* ZSTD_DEPS_NEED_IO */
99
100	/* Only requested when <stdint.h> is known to be present.
101	* Need:
102	* intptr_t
103	*/
104	#ifdef ZSTD_DEPS_NEED_STDINT
105	#ifndef ZSTD_DEPS_STDINT
106	#define ZSTD_DEPS_STDINT
107
108	#include <stdint.h>
109
110	#endif /* ZSTD_DEPS_STDINT */
111	#endif /* ZSTD_DEPS_NEED_STDINT */