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75 lines
3.5 KiB
C
75 lines
3.5 KiB
C
/* Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program 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. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
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/*
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Data in little-endian format.
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*/
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#ifndef MY_BYTE_ORDER_ARCH_OPTIMIZED
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#define float4get(V,M) memcpy(&V, (M), sizeof(float))
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#define float4store(V,M) memcpy(V, (&M), sizeof(float))
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#define float8get(V,M) doubleget((V),(M))
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#define float8store(V,M) doublestore((V),(M))
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/* Bi-endian hardware.... */
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#if defined(__FLOAT_WORD_ORDER) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN)
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#define doublestore(T,V) do { *(((char*)T)+0)=(char) ((uchar *) &V)[4];\
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*(((char*)T)+1)=(char) ((uchar *) &V)[5];\
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*(((char*)T)+2)=(char) ((uchar *) &V)[6];\
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*(((char*)T)+3)=(char) ((uchar *) &V)[7];\
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*(((char*)T)+4)=(char) ((uchar *) &V)[0];\
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*(((char*)T)+5)=(char) ((uchar *) &V)[1];\
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*(((char*)T)+6)=(char) ((uchar *) &V)[2];\
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*(((char*)T)+7)=(char) ((uchar *) &V)[3]; }\
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while(0)
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#define doubleget(V,M) do { double def_temp;\
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((uchar*) &def_temp)[0]=(M)[4];\
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((uchar*) &def_temp)[1]=(M)[5];\
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((uchar*) &def_temp)[2]=(M)[6];\
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((uchar*) &def_temp)[3]=(M)[7];\
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((uchar*) &def_temp)[4]=(M)[0];\
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((uchar*) &def_temp)[5]=(M)[1];\
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((uchar*) &def_temp)[6]=(M)[2];\
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((uchar*) &def_temp)[7]=(M)[3];\
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(V) = def_temp; } while(0)
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#else /* Bi-endian hardware.... */
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/* Cast away type qualifiers (necessary as macro takes argument by value). */
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#define doublestore(T,V) memcpy((T), (void*) &V, sizeof(double))
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#define doubleget(V,M) memcpy(&V, (M), sizeof(double))
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#endif /* Bi-endian hardware.... */
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#endif /* !MY_BYTE_ORDER_ARCH_OPTIMIZED */
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#define ushortget(V,M) do { uchar *pM= (uchar*)(M);V = uint2korr(pM);} while(0)
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#define shortget(V,M) do { uchar *pM= (uchar*)(M);V = sint2korr(pM);} while(0)
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#define longget(V,M) do { uchar *pM= (uchar*)(M);V = sint4korr(pM);} while(0)
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#define ulongget(V,M) do { uchar *pM= (uchar*)(M);V = uint4korr(pM);} while(0)
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#define shortstore(T,V) int2store(T,V)
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#define longstore(T,V) int4store(T,V)
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#ifndef floatstore
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/* Cast away type qualifiers (necessary as macro takes argument by value). */
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#define floatstore(T,V) memcpy((T), (void*) (&V), sizeof(float))
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#define floatget(V,M) memcpy(&V, (M), sizeof(float))
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#endif
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#ifndef doubleget
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#define doubleget(V,M) memcpy(&V, (M), sizeof(double))
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#define doublestore(T,V) memcpy((T), (void *) &V, sizeof(double))
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#endif /* doubleget */
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#define longlongget(V,M) memcpy(&V, (M), sizeof(ulonglong))
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#define longlongstore(T,V) memcpy((T), &V, sizeof(ulonglong))
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