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Fix additional cases of possible signed integer overflow, especially with

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regard to negation.

FossilOrigin-Name: 2d5800bd8cfc7d7f5578a71b1aeaa74b2ec4b372
This commit is contained in:
drh
2011-03-08 02:38:28 +00:00
parent 2327275b8c
commit d50ffc416f
9 changed files with 45 additions and 37 deletions
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3
src/prepare.c
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@@ -278,9 +278,8 @@ static int sqlite3InitOne(sqlite3 *db, int iDb, char **pzErrMsg){
pDb->pSchema->enc = ENC(db);
if( pDb->pSchema->cache_size==0 ){
size = meta[BTREE_DEFAULT_CACHE_SIZE-1];
size = sqlite3AbsInt32(meta[BTREE_DEFAULT_CACHE_SIZE-1]);
if( size==0 ){ size = SQLITE_DEFAULT_CACHE_SIZE; }
if( size<0 ) size = -size;
pDb->pSchema->cache_size = size;
sqlite3BtreeSetCacheSize(pDb->pBt, pDb->pSchema->cache_size);
}