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Simplifications and performance improvement in pager_write().

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FossilOrigin-Name: ab7aeeead395a05b91a921ef9ebe9252fffad667
This commit is contained in:
drh
2015-06-29 14:11:50 +00:00
parent c78ae916b9
commit 82ef8775c7
5 changed files with 101 additions and 94 deletions
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7
src/bitvec.c
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@@ -126,8 +126,8 @@ Bitvec *sqlite3BitvecCreate(u32 iSize){
** If p is NULL (if the bitmap has not been created) or if
** i is out of range, then return false.
*/
int sqlite3BitvecTest(Bitvec *p, u32 i){
if( p==0 ) return 0;
int sqlite3BitvecTestNotNull(Bitvec *p, u32 i){
assert( p!=0 );
i--;
if( i>=p->iSize ) return 0;
while( p->iDivisor ){
@@ -149,6 +149,9 @@ int sqlite3BitvecTest(Bitvec *p, u32 i){
return 0;
}
}
int sqlite3BitvecTest(Bitvec *p, u32 i){
return p!=0 && sqlite3BitvecTestNotNull(p,i);
}
/*
** Set the i-th bit. Return 0 on success and an error code if