#include <stdint.h>
#include <stddef.h>
#include <Block.h>

#define capture __block
#define closure Block_copy

typedef void (^__defer_block_t)(void);

static inline void __defer_exec(__defer_block_t *blk) { (*blk)(); }

#define __cat_2(a, b) a##b
#define __cat_1(a, b) __cat_2(a, b)

#define scope_exit \
    __attribute__((cleanup(__defer_exec), unused)) \
    __defer_block_t __cat_1(_defer_, __LINE__) = ^

#define auto __auto_type

typedef uint8_t  u8;
typedef uint16_t u16;
typedef uint32_t u32;
typedef uint64_t u64;

typedef int8_t  s8;
typedef int16_t s16;
typedef int32_t s32;
typedef int64_t s64;

typedef float  f32;
typedef double f64;

typedef intptr_t  intptr;
typedef uintptr_t uintptr;
typedef size_t    usize;
typedef ptrdiff_t ssize;

// Thanks AZMR
#define cast(to_type, expr) ((to_type)(expr))
#define chkcast(to_type, from_type, expr) _Generic(expr, from_type: (to_type)(expr))
#define ptrcast(to_type, from_type, expr) _Generic(expr, from_type: (to_type)(uintptr_t)(expr))
#define bitcast(to_type, from_type, expr) (((union { from_type from; to_type to; }){_Generic(expr, from_type: expr)}).to)