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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 12:24:36 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 12:24:36 +0000
commit06eaf7232e9a920468c0f8d74dcf2fe8b555501c (patch)
treee2c7b5777f728320e5b5542b6213fd3591ba51e2 /include/little_endian.h
parentInitial commit. (diff)
downloadmariadb-06eaf7232e9a920468c0f8d74dcf2fe8b555501c.tar.xz
mariadb-06eaf7232e9a920468c0f8d74dcf2fe8b555501c.zip
Adding upstream version 1:10.11.6.upstream/1%10.11.6
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/little_endian.h')
-rw-r--r--include/little_endian.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/include/little_endian.h b/include/little_endian.h
new file mode 100644
index 00000000..dcddbdd9
--- /dev/null
+++ b/include/little_endian.h
@@ -0,0 +1,75 @@
+/* Copyright (c) 2012, 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 02110-1335 USA */
+
+/*
+ Data in little-endian format.
+*/
+
+#ifndef MY_BYTE_ORDER_ARCH_OPTIMIZED
+#define float4get(V,M) memcpy(&V, (M), sizeof(float))
+#define float4store(V,M) memcpy(V, (&M), sizeof(float))
+#define float8get(V,M) doubleget((V),(M))
+#define float8store(V,M) doublestore((V),(M))
+
+/* Bi-endian hardware.... */
+#if defined(__FLOAT_WORD_ORDER) && (__FLOAT_WORD_ORDER == __BIG_ENDIAN)
+#define doublestore(T,V) do { *(((char*)T)+0)=(char) ((uchar *) &V)[4];\
+ *(((char*)T)+1)=(char) ((uchar *) &V)[5];\
+ *(((char*)T)+2)=(char) ((uchar *) &V)[6];\
+ *(((char*)T)+3)=(char) ((uchar *) &V)[7];\
+ *(((char*)T)+4)=(char) ((uchar *) &V)[0];\
+ *(((char*)T)+5)=(char) ((uchar *) &V)[1];\
+ *(((char*)T)+6)=(char) ((uchar *) &V)[2];\
+ *(((char*)T)+7)=(char) ((uchar *) &V)[3]; }\
+ while(0)
+#define doubleget(V,M) do { double def_temp;\
+ ((uchar*) &def_temp)[0]=(M)[4];\
+ ((uchar*) &def_temp)[1]=(M)[5];\
+ ((uchar*) &def_temp)[2]=(M)[6];\
+ ((uchar*) &def_temp)[3]=(M)[7];\
+ ((uchar*) &def_temp)[4]=(M)[0];\
+ ((uchar*) &def_temp)[5]=(M)[1];\
+ ((uchar*) &def_temp)[6]=(M)[2];\
+ ((uchar*) &def_temp)[7]=(M)[3];\
+ (V) = def_temp; } while(0)
+#else /* Bi-endian hardware.... */
+
+/* Cast away type qualifiers (necessary as macro takes argument by value). */
+#define doublestore(T,V) memcpy((T), (void*) &V, sizeof(double))
+#define doubleget(V,M) memcpy(&V, (M), sizeof(double))
+
+#endif /* Bi-endian hardware.... */
+
+#endif /* !MY_BYTE_ORDER_ARCH_OPTIMIZED */
+
+#define ushortget(V,M) do { uchar *pM= (uchar*)(M);V = uint2korr(pM);} while(0)
+#define shortget(V,M) do { uchar *pM= (uchar*)(M);V = sint2korr(pM);} while(0)
+#define longget(V,M) do { uchar *pM= (uchar*)(M);V = sint4korr(pM);} while(0)
+#define ulongget(V,M) do { uchar *pM= (uchar*)(M);V = uint4korr(pM);} while(0)
+#define shortstore(T,V) int2store(T,V)
+#define longstore(T,V) int4store(T,V)
+
+#ifndef floatstore
+/* Cast away type qualifiers (necessary as macro takes argument by value). */
+#define floatstore(T,V) memcpy((T), (void*) (&V), sizeof(float))
+#define floatget(V,M) memcpy(&V, (M), sizeof(float))
+#endif
+#ifndef doubleget
+#define doubleget(V,M) memcpy(&V, (M), sizeof(double))
+#define doublestore(T,V) memcpy((T), (void *) &V, sizeof(double))
+#endif /* doubleget */
+
+#define longlongget(V,M) memcpy(&V, (M), sizeof(ulonglong))
+#define longlongstore(T,V) memcpy((T), &V, sizeof(ulonglong))