1 #ifndef MY_BYTEORDER_INCLUDED
2 #define MY_BYTEORDER_INCLUDED
3
4 /* Copyright (c) 2001, 2021, Oracle and/or its affiliates.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License, version 2.0,
8 as published by the Free Software Foundation.
9
10 This program is also distributed with certain software (including
11 but not limited to OpenSSL) that is licensed under separate terms,
12 as designated in a particular file or component or in included license
13 documentation. The authors of MySQL hereby grant you an additional
14 permission to link the program and your derivative works with the
15 separately licensed software that they have included with MySQL.
16
17 Without limiting anything contained in the foregoing, this file,
18 which is part of C Driver for MySQL (Connector/C), is also subject to the
19 Universal FOSS Exception, version 1.0, a copy of which can be found at
20 http://oss.oracle.com/licenses/universal-foss-exception.
21
22 This program is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 GNU General Public License, version 2.0, for more details.
26
27 You should have received a copy of the GNU General Public License
28 along with this program; if not, write to the Free Software
29 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
30
31
32 /*
33 Functions for reading and storing in machine independent
34 format (low byte first). There are 'korr' (assume 'corrector') variants
35 for integer types, but 'get' (assume 'getter') for floating point types.
36 */
37 #if defined(__i386__) || defined(_WIN32) || defined(__x86_64__)
38 #include "byte_order_generic_x86.h"
39 #else
40 #include "byte_order_generic.h"
41 #endif
42
sint3korr(const uchar * A)43 static inline int32 sint3korr(const uchar *A)
44 {
45 return
46 ((int32) (((A[2]) & 128) ?
47 (((uint32) 255L << 24) |
48 (((uint32) A[2]) << 16) |
49 (((uint32) A[1]) << 8) |
50 ((uint32) A[0])) :
51 (((uint32) A[2]) << 16) |
52 (((uint32) A[1]) << 8) |
53 ((uint32) A[0])))
54 ;
55 }
56
uint3korr(const uchar * A)57 static inline uint32 uint3korr(const uchar *A)
58 {
59 return
60 (uint32) (((uint32) (A[0])) +
61 (((uint32) (A[1])) << 8) +
62 (((uint32) (A[2])) << 16))
63 ;
64 }
65
uint5korr(const uchar * A)66 static inline ulonglong uint5korr(const uchar *A)
67 {
68 return
69 ((ulonglong)(((uint32) (A[0])) +
70 (((uint32) (A[1])) << 8) +
71 (((uint32) (A[2])) << 16) +
72 (((uint32) (A[3])) << 24)) +
73 (((ulonglong) (A[4])) << 32))
74 ;
75 }
76
uint6korr(const uchar * A)77 static inline ulonglong uint6korr(const uchar *A)
78 {
79 return
80 ((ulonglong)(((uint32) (A[0])) +
81 (((uint32) (A[1])) << 8) +
82 (((uint32) (A[2])) << 16) +
83 (((uint32) (A[3])) << 24)) +
84 (((ulonglong) (A[4])) << 32) +
85 (((ulonglong) (A[5])) << 40))
86 ;
87 }
88
int3store(uchar * T,uint A)89 static inline void int3store(uchar *T, uint A)
90 {
91 *(T)= (uchar) (A);
92 *(T+1)= (uchar) (A >> 8);
93 *(T+2)= (uchar) (A >> 16);
94 }
95
int5store(uchar * T,ulonglong A)96 static inline void int5store(uchar *T, ulonglong A)
97 {
98 *(T)= (uchar) (A);
99 *(T+1)= (uchar) (A >> 8);
100 *(T+2)= (uchar) (A >> 16);
101 *(T+3)= (uchar) (A >> 24);
102 *(T+4)= (uchar) (A >> 32);
103 }
104
int6store(uchar * T,ulonglong A)105 static inline void int6store(uchar *T, ulonglong A)
106 {
107 *(T)= (uchar) (A);
108 *(T+1)= (uchar) (A >> 8);
109 *(T+2)= (uchar) (A >> 16);
110 *(T+3)= (uchar) (A >> 24);
111 *(T+4)= (uchar) (A >> 32);
112 *(T+5)= (uchar) (A >> 40);
113 }
114
115 #ifdef __cplusplus
116
sint2korr(const char * pT)117 static inline int16 sint2korr(const char *pT)
118 {
119 return sint2korr(static_cast<const uchar*>(static_cast<const void*>(pT)));
120 }
121
uint2korr(const char * pT)122 static inline uint16 uint2korr(const char *pT)
123 {
124 return uint2korr(static_cast<const uchar*>(static_cast<const void*>(pT)));
125 }
126
uint3korr(const char * pT)127 static inline uint32 uint3korr(const char *pT)
128 {
129 return uint3korr(static_cast<const uchar*>(static_cast<const void*>(pT)));
130 }
131
sint3korr(const char * pT)132 static inline int32 sint3korr(const char *pT)
133 {
134 return sint3korr(static_cast<const uchar*>(static_cast<const void*>(pT)));
135 }
136
uint4korr(const char * pT)137 static inline uint32 uint4korr(const char *pT)
138 {
139 return uint4korr(static_cast<const uchar*>(static_cast<const void*>(pT)));
140 }
141
sint4korr(const char * pT)142 static inline int32 sint4korr(const char *pT)
143 {
144 return sint4korr(static_cast<const uchar*>(static_cast<const void*>(pT)));
145 }
146
uint6korr(const char * pT)147 static inline ulonglong uint6korr(const char *pT)
148 {
149 return uint6korr(static_cast<const uchar*>(static_cast<const void*>(pT)));
150 }
151
uint8korr(const char * pT)152 static inline ulonglong uint8korr(const char *pT)
153 {
154 return uint8korr(static_cast<const uchar*>(static_cast<const void*>(pT)));
155 }
156
sint8korr(const char * pT)157 static inline longlong sint8korr(const char *pT)
158 {
159 return sint8korr(static_cast<const uchar*>(static_cast<const void*>(pT)));
160 }
161
162
int2store(char * pT,uint16 A)163 static inline void int2store(char *pT, uint16 A)
164 {
165 int2store(static_cast<uchar*>(static_cast<void*>(pT)), A);
166 }
167
int3store(char * pT,uint A)168 static inline void int3store(char *pT, uint A)
169 {
170 int3store(static_cast<uchar*>(static_cast<void*>(pT)), A);
171 }
172
int4store(char * pT,uint32 A)173 static inline void int4store(char *pT, uint32 A)
174 {
175 int4store(static_cast<uchar*>(static_cast<void*>(pT)), A);
176 }
177
int5store(char * pT,ulonglong A)178 static inline void int5store(char *pT, ulonglong A)
179 {
180 int5store(static_cast<uchar*>(static_cast<void*>(pT)), A);
181 }
182
int6store(char * pT,ulonglong A)183 static inline void int6store(char *pT, ulonglong A)
184 {
185 int6store(static_cast<uchar*>(static_cast<void*>(pT)), A);
186 }
187
int8store(char * pT,ulonglong A)188 static inline void int8store(char *pT, ulonglong A)
189 {
190 int8store(static_cast<uchar*>(static_cast<void*>(pT)), A);
191 }
192
193 #endif /* __cplusplus */
194
195 /*
196 Functions for reading and storing in machine format from/to
197 short/long to/from some place in memory V should be a variable
198 and M a pointer to byte.
199 */
200 #ifdef WORDS_BIGENDIAN
201 #include "big_endian.h"
202 #else
203 #include "little_endian.h"
204 #endif
205
206 #ifdef __cplusplus
207
float4store(char * V,float M)208 static inline void float4store(char *V, float M)
209 {
210 float4store(static_cast<uchar*>(static_cast<void*>(V)), M);
211 }
212
float8get(double * V,const char * M)213 static inline void float8get(double *V, const char *M)
214 {
215 float8get(V, static_cast<const uchar*>(static_cast<const void*>(M)));
216 }
217
float8store(char * V,double M)218 static inline void float8store(char *V, double M)
219 {
220 float8store(static_cast<uchar*>(static_cast<void*>(V)), M);
221 }
222
223 #endif /* __cplusplus */
224
225 #endif /* MY_BYTEORDER_INCLUDED */
226