826af1757c
related: #127238 This patch adds a macro called `LLVM_LIBC_CAST`, similar to `__BIONIC_CAST`, for type conversion in `endian.h`.
51 lines
1.9 KiB
C
51 lines
1.9 KiB
C
//===-- Definition of macros from endian.h --------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIBC_MACROS_ENDIAN_MACROS_H
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#define LLVM_LIBC_MACROS_ENDIAN_MACROS_H
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#include "stdint-macros.h"
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#define LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__
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#define BIG_ENDIAN __ORDER_BIG_ENDIAN__
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#define BYTE_ORDER __BYTE_ORDER__
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#if BYTE_ORDER == LITTLE_ENDIAN
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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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#define htole16(x) __LLVM_LIBC_CAST(static_cast, uint16_t, x)
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#define htole32(x) __LLVM_LIBC_CAST(static_cast, uint32_t, x)
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#define htole64(x) __LLVM_LIBC_CAST(static_cast, uint64_t, 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 le16toh(x) __LLVM_LIBC_CAST(static_cast, uint16_t, x)
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#define le32toh(x) __LLVM_LIBC_CAST(static_cast, uint32_t, x)
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#define le64toh(x) __LLVM_LIBC_CAST(static_cast, uint64_t, x)
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#else
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#define htobe16(x) __LLVM_LIBC_CAST(static_cast, uint16_t, x)
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#define htobe32(x) __LLVM_LIBC_CAST(static_cast, uint32_t, x)
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#define htobe64(x) __LLVM_LIBC_CAST(static_cast, uint64_t, 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) __LLVM_LIBC_CAST(static_cast, uint16_t, x)
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#define be32toh(x) __LLVM_LIBC_CAST(static_cast, uint32_t, x)
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#define be64toh(x) __LLVM_LIBC_CAST(static_cast, uint64_t, x)
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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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#endif
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#endif // LLVM_LIBC_MACROS_ENDIAN_MACROS_H
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