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| Current File : //usr/include/mysql/big_endian.h |
/* Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
#include <string.h>
/*
Data in big-endian format.
*/
static inline void float4store(uchar *T, float A)
{ *(T)= ((uchar *) &A)[3];
*((T)+1)=(char) ((uchar *) &A)[2];
*((T)+2)=(char) ((uchar *) &A)[1];
*((T)+3)=(char) ((uchar *) &A)[0]; }
static inline void float4get (float *V, const uchar *M)
{ float def_temp;
((uchar*) &def_temp)[0]=(M)[3];
((uchar*) &def_temp)[1]=(M)[2];
((uchar*) &def_temp)[2]=(M)[1];
((uchar*) &def_temp)[3]=(M)[0];
(*V)=def_temp; }
static inline void float8store(uchar *T, double V)
{ *(T)= ((uchar *) &V)[7];
*((T)+1)=(char) ((uchar *) &V)[6];
*((T)+2)=(char) ((uchar *) &V)[5];
*((T)+3)=(char) ((uchar *) &V)[4];
*((T)+4)=(char) ((uchar *) &V)[3];
*((T)+5)=(char) ((uchar *) &V)[2];
*((T)+6)=(char) ((uchar *) &V)[1];
*((T)+7)=(char) ((uchar *) &V)[0]; }
static inline void float8get (double *V, const uchar *M)
{ double def_temp;
((uchar*) &def_temp)[0]=(M)[7];
((uchar*) &def_temp)[1]=(M)[6];
((uchar*) &def_temp)[2]=(M)[5];
((uchar*) &def_temp)[3]=(M)[4];
((uchar*) &def_temp)[4]=(M)[3];
((uchar*) &def_temp)[5]=(M)[2];
((uchar*) &def_temp)[6]=(M)[1];
((uchar*) &def_temp)[7]=(M)[0];
(*V) = def_temp; }
static inline void ushortget(uint16 *V, const uchar *pM)
{ *V = (uint16) (((uint16) ((uchar) (pM)[1]))+
((uint16) ((uint16) (pM)[0]) << 8)); }
static inline void shortget (int16 *V, const uchar *pM)
{ *V = (short) (((short) ((uchar) (pM)[1]))+
((short) ((short) (pM)[0]) << 8)); }
static inline void longget (int32 *V, const uchar *pM)
{ int32 def_temp;
((uchar*) &def_temp)[0]=(pM)[0];
((uchar*) &def_temp)[1]=(pM)[1];
((uchar*) &def_temp)[2]=(pM)[2];
((uchar*) &def_temp)[3]=(pM)[3];
(*V)=def_temp; }
static inline void ulongget (uint32 *V, const uchar *pM)
{ uint32 def_temp;
((uchar*) &def_temp)[0]=(pM)[0];
((uchar*) &def_temp)[1]=(pM)[1];
((uchar*) &def_temp)[2]=(pM)[2];
((uchar*) &def_temp)[3]=(pM)[3];
(*V)=def_temp; }
static inline void shortstore(uchar *T, int16 A)
{ uint def_temp=(uint) (A) ;
*(((char*)T)+1)=(char)(def_temp);
*(((char*)T)+0)=(char)(def_temp >> 8); }
static inline void longstore (uchar *T, int32 A)
{ *(((char*)T)+3)=((A));
*(((char*)T)+2)=(((A) >> 8));
*(((char*)T)+1)=(((A) >> 16));
*(((char*)T)+0)=(((A) >> 24)); }
static inline void floatget(float *V, const uchar *M)
{
memcpy(V, (M), sizeof(float));
}
static inline void floatstore(uchar *T, float V)
{
memcpy((T), (&V), sizeof(float));
}
static inline void doubleget(double *V, const uchar *M)
{
memcpy(V, (M), sizeof(double));
}
static inline void doublestore(uchar *T, double V)
{
memcpy((T), &V, sizeof(double));
}
static inline void longlongget(longlong *V, const uchar *M)
{
memcpy(V, (M), sizeof(ulonglong));
}
static inline void longlongstore(uchar *T, longlong V)
{
memcpy((T), &V, sizeof(ulonglong));
}