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/* SPDX-FileCopyrightText: Copyright (C) 2024 ZeldaRET */
/* SPDX-License-Identifier: CC0-1.0 */
#ifndef UTIL_H_
#define UTIL_H_
#include <stdbool.h>
#include <stddef.h>
#include <string.h>
// Endian
#if defined(__linux__) || defined(__CYGWIN__)
#include <endian.h>
#elif defined(__APPLE__)
#include <libkern/OSByteOrder.h>
#define htobe16(x) OSSwapHostToBigInt16(x)
#define htole16(x) OSSwapHostToLittleInt16(x)
#define be16toh(x) OSSwapBigToHostInt16(x)
#define le16toh(x) OSSwapLittleToHostInt16(x)
#define htobe32(x) OSSwapHostToBigInt32(x)
#define htole32(x) OSSwapHostToLittleInt32(x)
#define be32toh(x) OSSwapBigToHostInt32(x)
#define le32toh(x) OSSwapLittleToHostInt32(x)
#define htobe64(x) OSSwapHostToBigInt64(x)
#define htole64(x) OSSwapHostToLittleInt64(x)
#define be64toh(x) OSSwapBigToHostInt64(x)
#define le64toh(x) OSSwapLittleToHostInt64(x)
#else
#error "Endian conversion unsupported, add it"
#endif
// Attribute macros
#define ALWAYS_INLINE inline __attribute__((always_inline))
#define NORETURN __attribute__((noreturn))
#define UNUSED __attribute__((unused))
// Helper macros
#define strequ(s1, s2) ((__builtin_constant_p(s2) ? strncmp(s1, s2, sizeof(s2) - 1) : strcmp(s1, s2)) == 0)
#define str_endswith(str, len, endswith) \
((len) > (sizeof(endswith) - 1) && strequ(&(str)[(len) - sizeof(endswith) + 1], (endswith)))
#define LL_FOREACH(type, x, base) for (type(x) = (base); (x) != NULL; (x) = (x)->next)
#define ARRAY_COUNT(arr) (sizeof(arr) / sizeof((arr)[0]))
#define ALIGN16(x) (((x) + 0xF) & ~0xF)
#define BOOL_STR(b) ((b) ? "true" : "false")
// util.c functions
__attribute__((format(printf, 1, 2))) NORETURN void
error(const char *fmt, ...);
__attribute__((format(printf, 1, 2))) void
warning(const char *fmt, ...);
void *
util_read_whole_file(const char *filename, size_t *size_out);
void
util_write_whole_file(const char *filename, const void *data, size_t size);
bool
str_is_c_identifier(const char *str);
#endif
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