#pragma once

// Minimal stdint.h for EYN-OS userland (i386, freestanding).
// Provides fixed-width integer types and common limit macros.

#ifdef __cplusplus
extern "C" {
#endif

// Exact-width integer types
typedef signed char int8_t;
typedef unsigned char uint8_t;

typedef short int16_t;
typedef unsigned short uint16_t;

typedef int int32_t;
typedef unsigned int uint32_t;

typedef long long int64_t;
typedef unsigned long long uint64_t;

// Minimum-width integer types
typedef int8_t int_least8_t;
typedef uint8_t uint_least8_t;
typedef int16_t int_least16_t;
typedef uint16_t uint_least16_t;
typedef int32_t int_least32_t;
typedef uint32_t uint_least32_t;
typedef int64_t int_least64_t;
typedef uint64_t uint_least64_t;

// Fastest minimum-width integer types (best-effort)
typedef int8_t int_fast8_t;
typedef uint8_t uint_fast8_t;
typedef int32_t int_fast16_t;
typedef uint32_t uint_fast16_t;
typedef int32_t int_fast32_t;
typedef uint32_t uint_fast32_t;
typedef int64_t int_fast64_t;
typedef uint64_t uint_fast64_t;

// Pointer-sized integer types (i386)
typedef long intptr_t;
typedef unsigned long uintptr_t;

// Greatest-width integer types
typedef long long intmax_t;
typedef unsigned long long uintmax_t;

// Limits of exact-width integer types
#define INT8_MIN   (-128)
#define INT8_MAX   (127)
#define UINT8_MAX  (255u)

#define INT16_MIN  (-32768)
#define INT16_MAX  (32767)
#define UINT16_MAX (65535u)

#define INT32_MIN  (-2147483647 - 1)
#define INT32_MAX  (2147483647)
#define UINT32_MAX (4294967295u)

#define INT64_MIN  (-9223372036854775807ll - 1)
#define INT64_MAX  (9223372036854775807ll)
#define UINT64_MAX (18446744073709551615ull)

// Limits of minimum-width integer types
#define INT_LEAST8_MIN   INT8_MIN
#define INT_LEAST8_MAX   INT8_MAX
#define UINT_LEAST8_MAX  UINT8_MAX
#define INT_LEAST16_MIN  INT16_MIN
#define INT_LEAST16_MAX  INT16_MAX
#define UINT_LEAST16_MAX UINT16_MAX
#define INT_LEAST32_MIN  INT32_MIN
#define INT_LEAST32_MAX  INT32_MAX
#define UINT_LEAST32_MAX UINT32_MAX
#define INT_LEAST64_MIN  INT64_MIN
#define INT_LEAST64_MAX  INT64_MAX
#define UINT_LEAST64_MAX UINT64_MAX

// Limits of fastest minimum-width integer types
#define INT_FAST8_MIN   INT8_MIN
#define INT_FAST8_MAX   INT8_MAX
#define UINT_FAST8_MAX  UINT8_MAX
#define INT_FAST16_MIN  INT32_MIN
#define INT_FAST16_MAX  INT32_MAX
#define UINT_FAST16_MAX UINT32_MAX
#define INT_FAST32_MIN  INT32_MIN
#define INT_FAST32_MAX  INT32_MAX
#define UINT_FAST32_MAX UINT32_MAX
#define INT_FAST64_MIN  INT64_MIN
#define INT_FAST64_MAX  INT64_MAX
#define UINT_FAST64_MAX UINT64_MAX

// Limits of integer types capable of holding object pointers
#define INTPTR_MIN INT32_MIN
#define INTPTR_MAX INT32_MAX
#define UINTPTR_MAX UINT32_MAX

// Limits of greatest-width integer types
#define INTMAX_MIN INT64_MIN
#define INTMAX_MAX INT64_MAX
#define UINTMAX_MAX UINT64_MAX

// Macros for integer constants
#define INT8_C(x)   x
#define UINT8_C(x)  x##u
#define INT16_C(x)  x
#define UINT16_C(x) x##u
#define INT32_C(x)  x
#define UINT32_C(x) x##u
#define INT64_C(x)  x##ll
#define UINT64_C(x) x##ull

#define INTMAX_C(x)  x##ll
#define UINTMAX_C(x) x##ull

#ifdef __cplusplus
}
#endif