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Use a new algorithm for sqlite3Strlen that is slightly slower but is more

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like to work on a mixture of 32- and 64-bit systems.  Ticket #3237, #3248. (CVS 5471)

FossilOrigin-Name: cb1876d8dc102be74be98dd57ac14ee67be8e8e2
This commit is contained in:
drh
2008-07-24 17:06:48 +00:00
parent 7ce72f6950
commit 513c331df9
3 changed files with 14 additions and 10 deletions
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10
src/util.c
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@@ -14,7 +14,7 @@
** This file contains functions for allocating memory, comparing
** strings, and stuff like that.
**
** $Id: util.c,v 1.239 2008/07/22 05:15:53 shane Exp $
** $Id: util.c,v 1.240 2008/07/24 17:06:48 drh Exp $
*/
#include "sqliteInt.h"
#include <stdarg.h>
@@ -56,11 +56,15 @@ int sqlite3IsNaN(double x){
*/
int sqlite3Strlen(sqlite3 *db, const char *z){
const char *z2 = z;
int len;
size_t x;
while( *z2 ){ z2++; }
if( z2 > &z[db->aLimit[SQLITE_LIMIT_LENGTH]] ){
x = z2 - z;
len = 0x7fffffff & x;
if( len!=x || len > db->aLimit[SQLITE_LIMIT_LENGTH] ){
return db->aLimit[SQLITE_LIMIT_LENGTH];
}else{
return (int)(z2 - z);
return len;
}
}