126 lines
5.1 KiB
C
126 lines
5.1 KiB
C
/* ****************************************************************************
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* libcasio/cdefs/endian.h -- libcasio's implementation of `endian.h`.
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* Copyright (C) 2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
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*
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* This file is part of libcasio.
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* libcasio is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 3.0 of the License,
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* or (at your option) any later version.
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*
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* libcasio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with libcasio; if not, see <http://www.gnu.org/licenses/>.
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* ************************************************************************* */
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#ifndef LIBCASIO_CDEFS_ENDIAN_H
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# define LIBCASIO_CDEFS_ENDIAN_H
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# include "../cdefs.h"
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/* These function always exist. They are the default ones, if the platform
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* does not have any equivalent function (or has one but indicates that
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* fact badly). */
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CASIO_EXTERN casio_uint16_t CASIO_EXPORT casio_be16toh
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OF((casio_uint16_t casio__x));
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CASIO_EXTERN casio_uint16_t CASIO_EXPORT casio_le16toh
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OF((casio_uint16_t casio__x));
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CASIO_EXTERN casio_uint32_t CASIO_EXPORT casio_be32toh
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OF((casio_uint32_t casio__x));
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CASIO_EXTERN casio_uint32_t CASIO_EXPORT casio_le32toh
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OF((casio_uint32_t casio__x));
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CASIO_EXTERN casio_uint16_t CASIO_EXPORT casio_htobe16
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OF((casio_uint16_t casio__x));
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CASIO_EXTERN casio_uint16_t CASIO_EXPORT casio_htole16
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OF((casio_uint16_t casio__x));
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CASIO_EXTERN casio_uint32_t CASIO_EXPORT casio_htobe32
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OF((casio_uint32_t casio__x));
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CASIO_EXTERN casio_uint32_t CASIO_EXPORT casio_htole32
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OF((casio_uint32_t casio__x));
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# if defined(__APPLE__)
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# include <libkern/OSByteOrder.h>
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# define casio_int_be16toh(CASIO__X) OSSwapBigToHostInt16(CASIO__X)
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# define casio_int_le16toh(CASIO__X) OSSwapLittleToHostInt16(CASIO__X)
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# define casio_int_be32toh(CASIO__X) OSSwapBigToHostInt32(CASIO__X)
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# define casio_int_le32toh(CASIO__X) OSSwapLittleToHostInt32(CASIO__X)
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# define casio_int_htobe16(CASIO__X) OSSwapHostToBigInt16(CASIO__X)
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# define casio_int_htole16(CASIO__X) OSSwapHostToLittleInt16(CASIO__X)
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# define casio_int_htobe32(CASIO__X) OSSwapHostToBigInt32(CASIO__X)
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# define casio_int_htole32(CASIO__X) OSSwapHostToLittleInt32(CASIO__X)
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# elif defined(__OpenBSD__)
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# include <sys/endian.h>
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# define LIBCASIO_ENDIAN_DEFINED
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# elif defined(_WIN16) || defined(_WIN32) || defined(_WIN64) \
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|| defined(__WINDOWS__)
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# include <winsock2.h>
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# include <sys/param.h>
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# if BYTE_ORDER == LITTLE_ENDIAN
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# define casio_int_be16toh(CASIO__X) ntohs(CASIO__X)
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# define casio_int_le16toh(CASIO__X) (CASIO__X)
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# define casio_int_be32toh(CASIO__X) ntohl(CASIO__X)
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# define casio_int_le32toh(CASIO__X) (CASIO__X)
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# define casio_int_htobe16(CASIO__X) htons(CASIO__X)
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# define casio_int_htole16(CASIO__X) (CASIO__X)
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# define casio_int_htobe32(CASIO__X) htonl(CASIO__X)
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# define casio_int_htole32(CASIO__X) (CASIO__X)
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# else
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# define casio_int_be16toh(CASIO__X) (CASIO__X)
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# define casio_int_le16toh(CASIO__X) ntohs(CASIO__X)
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# define casio_int_be32toh(CASIO__X) (CASIO__X)
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# define casio_int_le32toh(CASIO__X) ntohl(CASIO__X)
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# define casio_int_htobe16(CASIO__X) (CASIO__X)
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# define casio_int_htole16(CASIO__X) htons(CASIO__X)
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# define casio_int_htobe32(CASIO__X) (CASIO__X)
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# define casio_int_htole32(CASIO__X) htonl(CASIO__X)
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# endif
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# elif defined(__GLIBC__) && defined(__USE_MISC)
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# include <endian.h>
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# define LIBCASIO_ENDIAN_DEFINED
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# endif
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/* *e*toh, hto*e* macros are already defined, just make `casio_` aliases. */
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# ifdef LIBCASIO_ENDIAN_DEFINED
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# define casio_int_be16toh(CASIO__X) be16toh(CASIO__X)
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# define casio_int_le16toh(CASIO__X) le16toh(CASIO__X)
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# define casio_int_be32toh(CASIO__X) be32toh(CASIO__X)
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# define casio_int_le32toh(CASIO__X) le32toh(CASIO__X)
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# define casio_int_htobe16(CASIO__X) htobe16(CASIO__X)
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# define casio_int_htole16(CASIO__X) htole16(CASIO__X)
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# define casio_int_htobe32(CASIO__X) htobe32(CASIO__X)
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# define casio_int_htole32(CASIO__X) htole32(CASIO__X)
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# endif
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/* If we aren't including this from libcasio's endian source functions,
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* `LIBCASIO_NO_ENDIAN` should not be defined. Otherwise, as we will be
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* defining the "dynamic" symbols, do not define the functions. */
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# if !defined(LIBCASIO_NO_ENDIAN) && defined(casio_int_be16toh)
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# define casio_be16toh(CASIO__X) casio_int_be16toh(CASIO__X)
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# define casio_le16toh(CASIO__X) casio_int_le16toh(CASIO__X)
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# define casio_be32toh(CASIO__X) casio_int_be32toh(CASIO__X)
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# define casio_le32toh(CASIO__X) casio_int_le32toh(CASIO__X)
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# define casio_htobe16(CASIO__X) casio_int_htobe16(CASIO__X)
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# define casio_htole16(CASIO__X) casio_int_htole16(CASIO__X)
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# define casio_htobe32(CASIO__X) casio_int_htobe32(CASIO__X)
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# define casio_htole32(CASIO__X) casio_int_htole32(CASIO__X)
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# endif
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#endif /* LIBCASIO_CDEFS_ENDIAN_H */
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