/*
 * SPDX-License-Identifier: MIT
 *
 * Small fixed-width integer compatibility layer for SJ3.
 *
 * In C99 or newer translation units, use <stdint.h>. In C89 translation
 * units, provide the fixed-width names that SJ3 needs when the host integer
 * model has matching types.
 */

#ifndef SJ_STDINT_H_
#define SJ_STDINT_H_

#if defined(HAVE_C99_STDINT) && HAVE_C99_STDINT && \
    defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
#include <stdint.h>
#else

#include <limits.h>

#if !defined(UINT8_MAX)
#if UCHAR_MAX == 255
typedef signed char   int8_t;
typedef unsigned char uint8_t;
#define UINT8_MAX UCHAR_MAX
#else
#error "SJ3 requires an 8-bit unsigned char"
#endif
#endif

#if !defined(UINT16_MAX)
#if USHRT_MAX == 65535
typedef short	       int16_t;
typedef unsigned short uint16_t;
#define UINT16_MAX USHRT_MAX
#else
#error "SJ3 requires a 16-bit unsigned short"
#endif
#endif

#if !defined(UINT32_MAX)
#if UINT_MAX == 4294967295U
typedef int	     int32_t;
typedef unsigned int uint32_t;
#define UINT32_MAX UINT_MAX
#elif ULONG_MAX == 4294967295UL
typedef long	      int32_t;
typedef unsigned long uint32_t;
#define UINT32_MAX ULONG_MAX
#else
#error "SJ3 requires a 32-bit integer type"
#endif
#endif

#if !defined(UINT64_MAX) && (ULONG_MAX > 4294967295UL)
typedef long	      int64_t;
typedef unsigned long uint64_t;
#define UINT64_MAX ULONG_MAX
#elif !defined(UINT64_MAX) && (defined(_MSC_VER) || defined(_WIN32))
typedef __int64		 int64_t;
typedef unsigned __int64 uint64_t;
#endif

#endif

#endif /* SJ_STDINT_H_ */