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Make the cellMargin() routine of R-Tree slightly smaller and faster while also

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fixing a harmless compiler warning.

FossilOrigin-Name: 07fe6228208684d579c4f6c334c90eb6262a9233
This commit is contained in:
drh 2017-02-07 12:58:38 +00:00
parent 76f63789f2
commit edd9bcb372
3 changed files with 12 additions and 13 deletions
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10
ext/rtree/rtree.c
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@ -1955,12 +1955,12 @@ static RtreeDValue cellArea(Rtree *pRtree, RtreeCell *p){
** of the objects size in each dimension.
*/
static RtreeDValue cellMargin(Rtree *pRtree, RtreeCell *p){
RtreeDValue margin;
int ii;
margin = DCOORD(p->aCoord[1]) - DCOORD(p->aCoord[0]);
for(ii=2; ii<pRtree->nDim2; ii+=2){
RtreeDValue margin = 0;
int ii = pRtree->nDim2 - 2;
do{
margin += (DCOORD(p->aCoord[ii+1]) - DCOORD(p->aCoord[ii]));
}
ii -= 2;
}while( ii>=0 );
return margin;
}

13
manifest
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@ -1,5 +1,5 @@
C Back\sout\s[ec8ff892ac]\swhich\sis\scausing\smissed\sOOM\serrors\son\ssome\stests.
D 2017-02-07T03:44:42.867
C Make\sthe\scellMargin()\sroutine\sof\sR-Tree\sslightly\ssmaller\sand\sfaster\swhile\salso\nfixing\sa\sharmless\scompiler\swarning.
D 2017-02-07T12:58:38.284
F Makefile.in 5f415e7867296d678fed2e6779aea10c1318b4bc
F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
F Makefile.msc ba953c8921fc7e18333f61898007206de7e23964
@ -264,7 +264,7 @@ F ext/rbu/sqlite3rbu.c bb0de6cdbdb14a7d55a097238a434b7e99caf318
F ext/rbu/sqlite3rbu.h 6fb6294c34a9ca93b5894a33bca530c6f08decba
F ext/rbu/test_rbu.c 5aa22616afac6f71ebd3d9bc9bf1006cfabcca88
F ext/rtree/README 6315c0d73ebf0ec40dedb5aa0e942bc8b54e3761
F ext/rtree/rtree.c 76311736628e87fd780dfbbbf5813bf1f9bf2329
F ext/rtree/rtree.c 773fbf1217a12607a5898eeb5193974b6d2bdad4
F ext/rtree/rtree.h 834dbcb82dc85b2481cde6a07cdadfddc99e9b9e
F ext/rtree/rtree1.test 42dadfc7b44a436cd74a1bebc0b9b689e4eaf7ec
F ext/rtree/rtree2.test acbb3a4ce0f4fbc2c304d2b4b784cfa161856bba
@ -1554,8 +1554,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P f77ee9e941f22b0b2e88871df4466fdde9cde131
Q -ec8ff892ac9c6a8f81bcf69f1933f4bb69faa743
R ebea043e9962974403d836188c02b08f
P 0611770d6a2fcb9fa0bedee19df9916820ae8f3b
R b3ac1d676d5ca604a8be68bb866fbceb
U drh
Z a87f51011f00704857e3612bb8043da6
Z 3ad4f65e4d593a16597f73c400a250b4

2
manifest.uuid
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@ -1 +1 @@
0611770d6a2fcb9fa0bedee19df9916820ae8f3b
07fe6228208684d579c4f6c334c90eb6262a9233