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Overview
| Comment: | Add SQLITE_DISABLE_INTRINSIC define to disable use of intrinsic functions (e.g. for certain older compilers and/or platforms). |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
f0075d735a76ce326619b6ba7f0d556e |
| User & Date: | mistachkin 2015-07-29 21:47:39 |
Context
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2015-07-29
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| 22:38 | Support building VSIX packages for UAP using Visual Studio 2015 and the Windows 10 SDK. check-in: 96559adb user: mistachkin tags: trunk | |
| 21:47 | Add SQLITE_DISABLE_INTRINSIC define to disable use of intrinsic functions (e.g. for certain older compilers and/or platforms). check-in: f0075d73 user: mistachkin tags: trunk | |
| 20:24 | Fix the releasetest.tcl script so that it ignore cast overflow errors that recent versions of clang generate but which are unavoidable given the test input. check-in: a0020c57 user: drh tags: trunk | |
Changes
Changes to src/btreeInt.h.
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/* ** get2byteAligned(), unlike get2byte(), requires that its argument point to a ** two-byte aligned address. get2bytea() is only used for accessing the ** cell addresses in a btree header. */ #if SQLITE_BYTEORDER==4321 # define get2byteAligned(x) (*(u16*)(x)) #elif SQLITE_BYTEORDER==1234 && GCC_VERSION>=4008000 # define get2byteAligned(x) __builtin_bswap16(*(u16*)(x)) #elif SQLITE_BYTEORDER==1234 && defined(_MSC_VER) && _MSC_VER>=1300 # define get2byteAligned(x) _byteswap_ushort(*(u16*)(x)) #else # define get2byteAligned(x) ((x)[0]<<8 | (x)[1]) #endif |
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/* ** get2byteAligned(), unlike get2byte(), requires that its argument point to a ** two-byte aligned address. get2bytea() is only used for accessing the ** cell addresses in a btree header. */ #if SQLITE_BYTEORDER==4321 # define get2byteAligned(x) (*(u16*)(x)) #elif SQLITE_BYTEORDER==1234 && !defined(SQLITE_DISABLE_INTRINSIC) \ && GCC_VERSION>=4008000 # define get2byteAligned(x) __builtin_bswap16(*(u16*)(x)) #elif SQLITE_BYTEORDER==1234 && !defined(SQLITE_DISABLE_INTRINSIC) \ && defined(_MSC_VER) && _MSC_VER>=1300 # define get2byteAligned(x) _byteswap_ushort(*(u16*)(x)) #else # define get2byteAligned(x) ((x)[0]<<8 | (x)[1]) #endif |
Changes to src/sqliteInt.h.
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# define SQLITE_NOINLINE __declspec(noinline)
#else
# define SQLITE_NOINLINE
#endif
/*
** Make sure that the compiler intrinsics we desire are enabled when
** compiling with an appropriate version of MSVC.
*/
#if defined(_MSC_VER) && _MSC_VER>=1300
# if !defined(_WIN32_WCE)
# include <intrin.h>
# pragma intrinsic(_byteswap_ushort)
# pragma intrinsic(_byteswap_ulong)
# else
# include <cmnintrin.h>
# endif
#endif
/*
** The SQLITE_THREADSAFE macro must be defined as 0, 1, or 2.
** 0 means mutexes are permanently disable and the library is never
** threadsafe. 1 means the library is serialized which is the highest
|
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# define SQLITE_NOINLINE __declspec(noinline) #else # define SQLITE_NOINLINE #endif /* ** Make sure that the compiler intrinsics we desire are enabled when ** compiling with an appropriate version of MSVC unless prevented by ** the SQLITE_DISABLE_INTRINSIC define. */ #if !defined(SQLITE_DISABLE_INTRINSIC) # if defined(_MSC_VER) && _MSC_VER>=1300 # if !defined(_WIN32_WCE) # include <intrin.h> # pragma intrinsic(_byteswap_ushort) # pragma intrinsic(_byteswap_ulong) # else # include <cmnintrin.h> # endif # endif #endif /* ** The SQLITE_THREADSAFE macro must be defined as 0, 1, or 2. ** 0 means mutexes are permanently disable and the library is never ** threadsafe. 1 means the library is serialized which is the highest |
Changes to src/util.c.
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** Read or write a four-byte big-endian integer value.
*/
u32 sqlite3Get4byte(const u8 *p){
#if SQLITE_BYTEORDER==4321
u32 x;
memcpy(&x,p,4);
return x;
#elif SQLITE_BYTEORDER==1234 && defined(__GNUC__) && GCC_VERSION>=4003000
u32 x;
memcpy(&x,p,4);
return __builtin_bswap32(x);
#elif SQLITE_BYTEORDER==1234 && defined(_MSC_VER) && _MSC_VER>=1300
u32 x;
memcpy(&x,p,4);
return _byteswap_ulong(x);
#else
testcase( p[0]&0x80 );
return ((unsigned)p[0]<<24) | (p[1]<<16) | (p[2]<<8) | p[3];
#endif
|
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** Read or write a four-byte big-endian integer value.
*/
u32 sqlite3Get4byte(const u8 *p){
#if SQLITE_BYTEORDER==4321
u32 x;
memcpy(&x,p,4);
return x;
#elif SQLITE_BYTEORDER==1234 && !defined(SQLITE_DISABLE_INTRINSIC) \
&& defined(__GNUC__) && GCC_VERSION>=4003000
u32 x;
memcpy(&x,p,4);
return __builtin_bswap32(x);
#elif SQLITE_BYTEORDER==1234 && !defined(SQLITE_DISABLE_INTRINSIC) \
&& defined(_MSC_VER) && _MSC_VER>=1300
u32 x;
memcpy(&x,p,4);
return _byteswap_ulong(x);
#else
testcase( p[0]&0x80 );
return ((unsigned)p[0]<<24) | (p[1]<<16) | (p[2]<<8) | p[3];
#endif
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