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According to [forum:/forumpost/9f6db917e1|forum post 9f6db917e1], older

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MSVC compilers are unable to convert a double directly into an unsigned
long long int, but must first go through a signed long long int.  Work
around this by restricting the range of doubles that are converted into
long long integers so that only the lower 63 bits are used.

FossilOrigin-Name: 0ab05871ba36e2a0eddfbc700c1d39891c54c453727a4effcdac3327efec163b
This commit is contained in:
drh
2023-09-14 16:45:46 +00:00
parent e68decd54c
commit e744f66008
3 changed files with 17 additions and 14 deletions
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14
src/util.c
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@@ -1029,29 +1029,29 @@ void sqlite3FpDecode(FpDecode *p, double r, int iRound, int mxRound){
double rr[2];
rr[0] = r;
rr[1] = 0.0;
if( rr[0]>1.84e+19 ){
while( rr[0]>1.84e+119 ){
if( rr[0]>9.223372036854774784e+18 ){
while( rr[0]>9.223372036854774784e+118 ){
exp += 100;
dekkerMul2(rr, 1.0e-100, -1.99918998026028836196e-117);
}
while( rr[0]>1.84e+29 ){
while( rr[0]>9.223372036854774784e+28 ){
exp += 10;
dekkerMul2(rr, 1.0e-10, -3.6432197315497741579e-27);
}
while( rr[0]>1.84e+19 ){
while( rr[0]>9.223372036854774784e+18 ){
exp += 1;
dekkerMul2(rr, 1.0e-01, -5.5511151231257827021e-18);
}
}else{
while( rr[0]<1.84e-82 ){
while( rr[0]<9.223372036854774784e-83 ){
exp -= 100;
dekkerMul2(rr, 1.0e+100, -1.5902891109759918046e+83);
}
while( rr[0]<1.84e+08 ){
while( rr[0]<9.223372036854774784e+07 ){
exp -= 10;
dekkerMul2(rr, 1.0e+10, 0.0);
}
while( rr[0]<1.84e+18 ){
while( rr[0]<9.22337203685477478e+17 ){
exp -= 1;
dekkerMul2(rr, 1.0e+01, 0.0);
}