database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-03 16:53:36 +03:00
Code Activity

Optimizations to the processing of integer comparisons. (CVS 420)

Browse Source 
FossilOrigin-Name: b7a7dae919be0e4c35b1fe8cb24fa7359a4b1200
This commit is contained in:
drh
2002-03-06 03:08:25 +00:00
parent 4b845d7ef4
commit e684090012
6 changed files with 52 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/util.c
View File

@@ -14,7 +14,7 @@
** This file contains functions for allocating memory, comparing
** strings, and stuff like that.
**
** $Id: util.c,v 1.40 2002/02/28 04:10:30 drh Exp $
** $Id: util.c,v 1.41 2002/03/06 03:08:26 drh Exp $
*/
#include "sqliteInt.h"
#include <stdarg.h>
@@ -629,7 +629,7 @@ static int sortStrCmp(const char *atext, const char *btext, int useCase){
**
** Am empty string is considered numeric.
*/
static int isNum(const char *z){
static int sqliteIsNumber(const char *z){
if( *z=='-' || *z=='+' ) z++;
if( !isdigit(*z) ){
return *z==0;
@@ -669,8 +669,8 @@ int sqliteCompare(const char *atext, const char *btext){
}else if( btext==0 ){
return 1;
}
isNumA = isNum(atext);
isNumB = isNum(btext);
isNumA = sqliteIsNumber(atext);
isNumB = sqliteIsNumber(btext);
if( isNumA ){
if( !isNumB ){
result = -1;
@@ -728,8 +728,8 @@ int sqliteSortCompare(const char *a, const char *b){
int isNumA, isNumB;
while( res==0 && *a && *b ){
isNumA = isNum(&a[1]);
isNumB = isNum(&b[1]);
isNumA = sqliteIsNumber(&a[1]);
isNumB = sqliteIsNumber(&b[1]);
if( isNumA ){
double rA, rB;
if( !isNumB ){