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55 lines
3.0 KiB
C
55 lines
3.0 KiB
C
// Copyright (c) 2025 Quinn
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// Licensed under the MIT Licence. See LICENSE for details
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#pragma once
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#include <stdint.h>
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#include "../atrb.h"
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#include "../types.h"
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/* little endian */
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atrb_const static inline u16 le16ton(u16); // converts little-endian (LE) encoding to native for a 16 bit integer. (NOOP if native is LE)
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atrb_const static inline u32 le32ton(u32); // converts little-endian (LE) encoding to native for a 32 bit integer. (NOOP if native is LE)
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atrb_const static inline u64 le64ton(u64); // converts little-endian (LE) encoding to native for a 64 bit integer. (NOOP if native is LE)
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atrb_const static inline u16 ntole16(u16); // converts native encoding to little-endian (LE) for a 16 bit integer. (NOOP if native is LE)
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atrb_const static inline u32 ntole32(u32); // converts native encoding to little-endian (LE) for a 32 bit integer. (NOOP if native is LE)
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atrb_const static inline u64 ntole64(u64); // converts native encoding to little-endian (LE) for a 64 bit integer. (NOOP if native is LE)
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/* big endian */
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atrb_const static inline u16 be16ton(u16); // converts big-endian (BE) encoding to native for a 16 bit integer. (NOOP if native is BE)
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atrb_const static inline u32 be32ton(u32); // converts big-endian (BE) encoding to native for a 32 bit integer. (NOOP if native is BE)
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atrb_const static inline u64 be64ton(u64); // converts big-endian (BE) encoding to native for a 64 bit integer. (NOOP if native is BE)
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atrb_const static inline u16 ntobe16(u16); // converts native encoding to big-endian (BE) for a 16 bit integer. (NOOP if native is BE)
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atrb_const static inline u32 ntobe32(u32); // converts native encoding to big-endian (BE) for a 32 bit integer. (NOOP if native is BE)
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atrb_const static inline u64 ntobe64(u64); // converts native encoding to big-endian (BE) for a 64 bit integer. (NOOP if native is BE)
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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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u16 le16ton(u16 x) { return x; }
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u32 le32ton(u32 x) { return x; }
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u64 le64ton(u64 x) { return x; }
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u16 ntole16(u16 x) { return x; }
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u32 ntole32(u32 x) { return x; }
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u64 ntole64(u64 x) { return x; }
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u16 be16ton(u16 x) { return __builtin_bswap16(x); }
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u32 be32ton(u32 x) { return __builtin_bswap32(x); }
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u64 be64ton(u64 x) { return __builtin_bswap64(x); }
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u16 ntobe16(u16 x) { return __builtin_bswap16(x); }
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u32 ntobe32(u32 x) { return __builtin_bswap32(x); }
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u64 ntobe64(u64 x) { return __builtin_bswap64(x); }
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#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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u16 le16ton(u16 x) { __builtin_bswap16(x); }
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u32 le32ton(u32 x) { __builtin_bswap32(x); }
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u64 le64ton(u64 x) { __builtin_bswap64(x); }
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u16 ntole16(u16 x) { __builtin_bswap16(x); }
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u32 ntole32(u32 x) { __builtin_bswap32(x); }
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u64 ntole64(u64 x) { __builtin_bswap64(x); }
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u16 be16ton(u16 x) { return x; }
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u32 be32ton(u32 x) { return x; }
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u64 be64ton(u64 x) { return x; }
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u16 ntobe16(u16 x) { return x; }
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u32 ntobe32(u32 x) { return x; }
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u64 ntobe64(u64 x) { return x; }
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#else
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#error machine architecture unsupported! Expected either big-endian or little-endian, make sure to use a compiler which defines __BYTE_ORDER__ (like clang or gcc)
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#endif
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