hyung-hwan/qse
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

redefined byte swap and endian conversion routines

Browse Source
This commit is contained in:
hyung-hwan
2019-05-03 08:39:50 +00:00
parent 66d110fa7b
commit 51853507fa
5 changed files with 376 additions and 256 deletions
Download Patch File Download Diff File Expand all files Collapse all files

182
qse/lib/cmn/hton.c
View File

@ -26,184 +26,4 @@
#include <qse/cmn/hton.h>
/* --------------------------------------------------------------- */
#if defined(QSE_HAVE_UINT16_T)
qse_uint16_t qse_ntoh16 (qse_uint16_t x)
{
#if defined(QSE_ENDIAN_BIG)
return x;
#elif defined(QSE_ENDIAN_LITTLE)
qse_uint8_t* c = (qse_uint8_t*)&x;
return (qse_uint16_t)(
((qse_uint16_t)c[0] << 8) |
((qse_uint16_t)c[1] << 0));
#else
# error Unknown endian
#endif
}
qse_uint16_t qse_hton16 (qse_uint16_t x)
{
#if defined(QSE_ENDIAN_BIG)
return x;
#elif defined(QSE_ENDIAN_LITTLE)
qse_uint8_t* c = (qse_uint8_t*)&x;
return (qse_uint16_t)(
((qse_uint16_t)c[0] << 8) |
((qse_uint16_t)c[1] << 0));
#else
# error Unknown endian
#endif
}
#endif
/* --------------------------------------------------------------- */
#if defined(QSE_HAVE_UINT32_T)
qse_uint32_t qse_ntoh32 (qse_uint32_t x)
{
#if defined(QSE_ENDIAN_BIG)
return x;
#elif defined(QSE_ENDIAN_LITTLE)
qse_uint8_t* c = (qse_uint8_t*)&x;
return (qse_uint32_t)(
((qse_uint32_t)c[0] << 24) |
((qse_uint32_t)c[1] << 16) |
((qse_uint32_t)c[2] << 8) |
((qse_uint32_t)c[3] << 0));
#else
# error Unknown endian
#endif
}
qse_uint32_t qse_hton32 (qse_uint32_t x)
{
#if defined(QSE_ENDIAN_BIG)
return x;
#elif defined(QSE_ENDIAN_LITTLE)
qse_uint8_t* c = (qse_uint8_t*)&x;
return (qse_uint32_t)(
((qse_uint32_t)c[0] << 24) |
((qse_uint32_t)c[1] << 16) |
((qse_uint32_t)c[2] << 8) |
((qse_uint32_t)c[3] << 0));
#else
# error Unknown endian
#endif
}
#endif
/* --------------------------------------------------------------- */
#if defined(QSE_HAVE_UINT64_T)
qse_uint64_t qse_ntoh64 (qse_uint64_t x)
{
#if defined(QSE_ENDIAN_BIG)
return x;
#elif defined(QSE_ENDIAN_LITTLE)
qse_uint8_t* c = (qse_uint8_t*)&x;
return (qse_uint64_t)(
((qse_uint64_t)c[0] << 56) |
((qse_uint64_t)c[1] << 48) |
((qse_uint64_t)c[2] << 40) |
((qse_uint64_t)c[3] << 32) |
((qse_uint64_t)c[4] << 24) |
((qse_uint64_t)c[5] << 16) |
((qse_uint64_t)c[6] << 8) |
((qse_uint64_t)c[7] << 0));
#else
# error Unknown endian
#endif
}
qse_uint64_t qse_hton64 (qse_uint64_t x)
{
#if defined(QSE_ENDIAN_BIG)
return x;
#elif defined(QSE_ENDIAN_LITTLE)
qse_uint8_t* c = (qse_uint8_t*)&x;
return (qse_uint64_t)(
((qse_uint64_t)c[0] << 56) |
((qse_uint64_t)c[1] << 48) |
((qse_uint64_t)c[2] << 40) |
((qse_uint64_t)c[3] << 32) |
((qse_uint64_t)c[4] << 24) |
((qse_uint64_t)c[5] << 16) |
((qse_uint64_t)c[6] << 8) |
((qse_uint64_t)c[7] << 0));
#else
# error Unknown endian
#endif
}
#endif
/* --------------------------------------------------------------- */
#if defined(QSE_HAVE_UINT128_T)
qse_uint128_t qse_ntoh128 (qse_uint128_t x)
{
#if defined(QSE_ENDIAN_BIG)
return x;
#elif defined(QSE_ENDIAN_LITTLE)
qse_uint8_t* c = (qse_uint8_t*)&x;
return (qse_uint128_t)(
((qse_uint128_t)c[0] << 120) |
((qse_uint128_t)c[1] << 112) |
((qse_uint128_t)c[2] << 104) |
((qse_uint128_t)c[3] << 96) |
((qse_uint128_t)c[4] << 88) |
((qse_uint128_t)c[5] << 80) |
((qse_uint128_t)c[6] << 72) |
((qse_uint128_t)c[7] << 64) |
((qse_uint128_t)c[8] << 56) |
((qse_uint128_t)c[9] << 48) |
((qse_uint128_t)c[10] << 40) |
((qse_uint128_t)c[11] << 32) |
((qse_uint128_t)c[12] << 24) |
((qse_uint128_t)c[13] << 16) |
((qse_uint128_t)c[14] << 8) |
((qse_uint128_t)c[15] << 0));
#else
# error Unknown endian
#endif
}
qse_uint128_t qse_hton128 (qse_uint128_t x)
{
#if defined(QSE_ENDIAN_BIG)
return x;
#elif defined(QSE_ENDIAN_LITTLE)
qse_uint8_t* c = (qse_uint8_t*)&x;
return (qse_uint128_t)(
((qse_uint128_t)c[0] << 120) |
((qse_uint128_t)c[1] << 112) |
((qse_uint128_t)c[2] << 104) |
((qse_uint128_t)c[3] << 96) |
((qse_uint128_t)c[4] << 88) |
((qse_uint128_t)c[5] << 80) |
((qse_uint128_t)c[6] << 72) |
((qse_uint128_t)c[7] << 64) |
((qse_uint128_t)c[8] << 56) |
((qse_uint128_t)c[9] << 48) |
((qse_uint128_t)c[10] << 40) |
((qse_uint128_t)c[11] << 32) |
((qse_uint128_t)c[12] << 24) |
((qse_uint128_t)c[13] << 16) |
((qse_uint128_t)c[14] << 8) |
((qse_uint128_t)c[15] << 0));
#else
# error Unknown endian
#endif
}
#endif
/* --------------------------------------------------------------- */
/* NO CODE HERE. THIS FILE IS JUST A PLACEHOLDER AS OF NOW */