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Floating point values are serialized in big-endian byte order. (CVS 1431)

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FossilOrigin-Name: acb65297b69c531813287166175fa7864c900fe6
This commit is contained in:
drh 2004-05-21 21:12:42 +00:00
parent 7f0f12e3ab
commit 1483e14cf7
3 changed files with 34 additions and 46 deletions
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12
manifest
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@ -1,5 +1,5 @@
C Remove\sthe\sOP_SetFound\sopcode\sand\sits\scousins.\s(CVS\s1430)
D 2004-05-21T13:39:50
C Floating\spoint\svalues\sare\sserialized\sin\sbig-endian\sbyte\sorder.\s(CVS\s1431)
D 2004-05-21T21:12:42
F Makefile.in ab7b0d5118e2da97bac66be8684a1034e3500f5a
F Makefile.linux-gcc b86a99c493a5bfb402d1d9178dcdc4bd4b32f906
F README f1de682fbbd94899d50aca13d387d1b3fd3be2dd
@ -67,7 +67,7 @@ F src/vacuum.c c134702e023db8778e6be59ac0ea7b02315b5476
F src/vdbe.c 2944326a99869c71698f634d6ace9e9be56d9180
F src/vdbe.h 391d5642a83af686f35c228fcd36cb4456d68f44
F src/vdbeInt.h 8ed2272e97bef20c5302c3b2cb4f900e8b5e2642
F src/vdbeaux.c 0a0de6f6097125960b02a3c8625fa896cbc61271
F src/vdbeaux.c 2dd437063e9a0769ce453f7ce94407934f56e2f8
F src/where.c efe5d25fe18cd7381722457898cd863e84097a0c
F test/all.test 569a92a8ee88f5300c057cc4a8f50fbbc69a3242
F test/attach.test cb9b884344e6cfa5e165965d5b1adea679a24c83
@ -195,7 +195,7 @@ F www/sqlite.tcl 3c83b08cf9f18aa2d69453ff441a36c40e431604
F www/tclsqlite.tcl b9271d44dcf147a93c98f8ecf28c927307abd6da
F www/vdbe.tcl 9b9095d4495f37697fd1935d10e14c6015e80aa1
F www/whentouse.tcl a8335bce47cc2fddb07f19052cb0cb4d9129a8e4
P 550a53b3f28ddb288bcb6c21849ca83b0a20bde4
R a27328b840ad5ac31f67deb6b635b74b
P 5524075ec02102446f8d153e068546f763d4bf7a
R 3fab4945c0e9af6644985641add2812d
U drh
Z 678137ddf4cdf9bac7e4b018c69ba9fb
Z 8a832721c126d5ef16d065c0fc0b260b

2
manifest.uuid
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@ -1 +1 @@
5524075ec02102446f8d153e068546f763d4bf7a
acb65297b69c531813287166175fa7864c900fe6

66
src/vdbeaux.c
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@ -1426,23 +1426,21 @@ int sqlite3VdbeSerialPut(unsigned char *buf, const Mem *pMem){
return 0;
}
/* Integer */
if( serial_type<5 ){
i64 i = pMem->i;
len = sqlite3VdbeSerialTypeLen(serial_type);
while( len-- ){
buf[len] = (i&0xFF);
i = i >> 8;
/* Integer and Real */
if( serial_type<=5 ){
u64 v;
int i;
if( serial_type==5 ){
v = *(u64*)&pMem->r;
}else{
v = *(u64*)&pMem->i;
}
return sqlite3VdbeSerialTypeLen(serial_type);
}
/* Float */
if( serial_type==5 ){
/* TODO: byte ordering? */
assert( sizeof(double)==8 );
memcpy(buf, &pMem->r, 8);
return 8;
len = i = sqlite3VdbeSerialTypeLen(serial_type);
while( i-- ){
buf[i] = (v&0xFF);
v >>= 8;
}
return len;
}
/* String or blob */
@ -1471,35 +1469,28 @@ int sqlite3VdbeSerialGet(const unsigned char *buf, u64 serial_type, Mem *pMem){
return 0;
}
/* Integer */
if( serial_type<5 ){
i64 i = 0;
/* Integer and Real */
if( serial_type<=5 ){
u64 v = 0;
int n;
len = sqlite3VdbeSerialTypeLen(serial_type);
if( buf[0]&0x80 ){
for(n=0; n<(8-len); n++){
i = (i<<8)+0xFF;
}
v = -1;
}
for(n=0; n<len; n++){
i = i << 8;
i = i + buf[n];
v = (v<<8) | buf[n];
}
pMem->flags = MEM_Int;
pMem->i = i;
return sqlite3VdbeSerialTypeLen(serial_type);
if( serial_type==5 ){
pMem->flags = MEM_Real;
pMem->r = *(double*)&v;
}else{
pMem->flags = MEM_Int;
pMem->i = *(int*)&v;
}
return len;
}
/* Float */
if( serial_type==5 ){
/* TODO: byte ordering? */
assert( sizeof(double)==8 );
memcpy(&pMem->r, buf, 8);
pMem->flags = MEM_Real;
return 8;
}
/* String or blob */
assert( serial_type>=12 );
len = sqlite3VdbeSerialTypeLen(serial_type);
@ -1883,6 +1874,3 @@ int sqlite3VdbeIdxKeyCompare(
}
return SQLITE_OK;
}