#ifndef _RNG__COMMON_H
#define _RNG__COMMON_H

#ifdef __cplusplus
extern "C" {
#endif

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

#define IFUNC_NAME(name, ver) _impl__ ## name ## __ ## ver 
#define IFUNC_IMPL(name, ver) __attribute__((copy(name))) IFUNC_NAME(name, ver)
#define IFUNC_RESOLVER_A(attr, name)  __attribute__((returns_nonnull)) (* __attribute__(attr) _ifun__ ## name (void)) // When the ifunc resolver wants to return a function pointer that has attributes on it, the attribute inner list (e.g. `(returns_nonnull, const, nonnull)') can be provided as the first argument
#define IFUNC_RESOLVER(name)  IFUNC_RESOLVER_A((copy(name)), name)
#define IFUNC_DEF(name, params) name params __attribute__((__ifunc__("_ifun__" #name)))

#define LIKELY(expr)   __builtin_expect(!!(expr), 1)
#define UNLIKELY(expr) __builtin_expect(!!(expr), 0)

#define _export(kind) __attribute__((visibility(#kind)))
#define v_internal	_export(internal)
#define v_protected	_export(protected)
#define v_hidden	_export(hidden)

#define _fspec__readonly	__attribute__((pure))
#define _fspec__pure		__attribute__((const))
#define _fspec(x) _fspec__ ## x

#define _rng_fpure  _fspec(readonly)
#define _rng_fconst _fspec(pure)

#define _rng_internal v_internal

#define DEF(s, n) typedef s ## int ## n ## _t s ## n
#define DEFINT(n) typedef uint ## n ## _t u ## n; \
		  typedef int ## n ## _t i ## n
		  
DEFINT(8);
DEFINT(16);
DEFINT(32);
DEFINT(64);

#ifdef __cplusplus
#else
#include <stdbool.h>
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpedantic"
typedef signed __int128 i128;
typedef unsigned __int128 u128;
#pragma GCC diagnostic pop
#endif
typedef float f32;
typedef double f64;

typedef size_t usize;
typedef ssize_t isize;

typedef bool u1;
typedef bool i1;

typedef uintptr_t ptr_t;

#undef DEFINT
#undef DEF

#ifdef __cplusplus
#define restrict __restrict__
}
#endif

#endif /* _RNG__COMMON_H */