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-rw-r--r--src/util.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/src/util.c b/src/util.c
index 59f1b805a..20be6d728 100644
--- a/src/util.c
+++ b/src/util.c
@@ -14,7 +14,7 @@
** This file contains functions for allocating memory, comparing
** strings, and stuff like that.
**
-** $Id: util.c,v 1.244 2008/12/10 21:19:57 drh Exp $
+** $Id: util.c,v 1.245 2008/12/10 22:15:00 drh Exp $
*/
#include "sqliteInt.h"
#include <stdarg.h>
@@ -51,6 +51,16 @@ int sqlite3IsNaN(double x){
}
/*
+** Compute a string length that is limited to what can be stored in
+** lower 30 bits of a 32-bit signed integer.
+*/
+int sqlite3Strlen30(const char *z){
+ const char *z2 = z;
+ while( *z2 ){ z2++; }
+ return 0x3fffffff & (int)(z2 - z);
+}
+
+/*
** Return the length of a string, except do not allow the string length
** to exceed the SQLITE_LIMIT_LENGTH setting.
*/