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Quinn
0358baf60d
the system header is inconsistently available across platforms. This header provides the same functionality for less of the cost, overriding the system macros.
34 lines
1.3 KiB
C
34 lines
1.3 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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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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#define le16toh(x) __uint16_identity(x)
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#define le32toh(x) __uint32_identity(x)
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#define le64toh(x) __uint64_identity(x)
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#define htole16(x) __uint16_identity(x)
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#define htole32(x) __uint32_identity(x)
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#define htole64(x) __uint64_identity(x)
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#define be16toh(x) __builtin_bswap16(x)
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#define be32toh(x) __builtin_bswap32(x)
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#define be64toh(x) __builtin_bswap64(x)
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#define htobe16(x) __builtin_bswap16(x)
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#define htobe32(x) __builtin_bswap32(x)
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#define htobe64(x) __builtin_bswap64(x)
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#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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#define le16toh(x) __builtin_bswap16(x)
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#define le32toh(x) __builtin_bswap32(x)
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#define le64toh(x) __builtin_bswap64(x)
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#define htole16(x) __builtin_bswap16(x)
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#define htole32(x) __builtin_bswap32(x)
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#define htole64(x) __builtin_bswap64(x)
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#define be16toh(x) __uint16_identity(x)
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#define be32toh(x) __uint32_identity(x)
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#define be64toh(x) __uint64_identity(x)
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#define htobe16(x) __uint16_identity(x)
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#define htobe32(x) __uint32_identity(x)
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#define htobe64(x) __uint64_identity(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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