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Make use of the Boost Endian library for byte swapping.

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It's likely to be better at choosing the most efficient method than our CMake tests.
This commit is contained in:
Tsuda Kageyu
2015-11-13 10:58:23 +09:00
parent 86c7e905ba
commit 6775cef651
3 changed files with 60 additions and 33 deletions
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68
ConfigureChecks.cmake
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@ -108,57 +108,69 @@ endif()
# Determine which kind of byte swap functions your compiler supports.
check_cxx_source_compiles("
#include <boost/endian/conversion.hpp>
int main() {
__builtin_bswap16(0);
__builtin_bswap32(0);
__builtin_bswap64(0);
boost::endian::endian_reverse(static_cast<uint16_t>(1));
boost::endian::endian_reverse(static_cast<uint32_t>(1));
boost::endian::endian_reverse(static_cast<uint64_t>(1));
return 0;
}
" HAVE_GCC_BYTESWAP)
" HAVE_BOOST_BYTESWAP)
if(NOT HAVE_GCC_BYTESWAP)
if(NOT HAVE_BOOST_BYTESWAP)
check_cxx_source_compiles("
#include <byteswap.h>
int main() {
__bswap_16(0);
__bswap_32(0);
__bswap_64(0);
__builtin_bswap16(0);
__builtin_bswap32(0);
__builtin_bswap64(0);
return 0;
}
" HAVE_GLIBC_BYTESWAP)
" HAVE_GCC_BYTESWAP)
if(NOT HAVE_GLIBC_BYTESWAP)
if(NOT HAVE_GCC_BYTESWAP)
check_cxx_source_compiles("
#include <stdlib.h>
#include <byteswap.h>
int main() {
_byteswap_ushort(0);
_byteswap_ulong(0);
_byteswap_uint64(0);
__bswap_16(0);
__bswap_32(0);
__bswap_64(0);
return 0;
}
" HAVE_MSC_BYTESWAP)
" HAVE_GLIBC_BYTESWAP)
if(NOT HAVE_MSC_BYTESWAP)
if(NOT HAVE_GLIBC_BYTESWAP)
check_cxx_source_compiles("
#include <libkern/OSByteOrder.h>
#include <stdlib.h>
int main() {
OSSwapInt16(0);
OSSwapInt32(0);
OSSwapInt64(0);
_byteswap_ushort(0);
_byteswap_ulong(0);
_byteswap_uint64(0);
return 0;
}
" HAVE_MAC_BYTESWAP)
" HAVE_MSC_BYTESWAP)
if(NOT HAVE_MAC_BYTESWAP)
if(NOT HAVE_MSC_BYTESWAP)
check_cxx_source_compiles("
#include <sys/endian.h>
#include <libkern/OSByteOrder.h>
int main() {
swap16(0);
swap32(0);
swap64(0);
OSSwapInt16(0);
OSSwapInt32(0);
OSSwapInt64(0);
return 0;
}
" HAVE_OPENBSD_BYTESWAP)
" HAVE_MAC_BYTESWAP)
if(NOT HAVE_MAC_BYTESWAP)
check_cxx_source_compiles("
#include <sys/endian.h>
int main() {
swap16(0);
swap32(0);
swap64(0);
return 0;
}
" HAVE_OPENBSD_BYTESWAP)
endif()
endif()
endif()
endif()