Avoid passing a negative value to isspace() in a couple places. (CVS 4016)

FossilOrigin-Name: d5db8be3680e16a74edb385dfa3730c66d5f4fd6

src/util.c

@@ -14,7 +14,7 @@
 ** This file contains functions for allocating memory, comparing
 ** strings, and stuff like that.
 **
-** $Id: util.c,v 1.204 2007/05/16 17:28:43 danielk1977 Exp $
+** $Id: util.c,v 1.205 2007/05/16 17:50:46 danielk1977 Exp $
 */
 #include "sqliteInt.h"
 #include "os.h"
@@ -246,7 +246,7 @@ int sqlite3AtoF(const char *z, double *pResult){
   int sign = 1;
   const char *zBegin = z;
   LONGDOUBLE_TYPE v1 = 0.0;
-  while( isspace(*z) ) z++;
+  while( isspace(*(u8*)z) ) z++;
   if( *z=='-' ){
     sign = -1;
     z++;
@@ -314,7 +314,7 @@ int sqlite3Atoi64(const char *zNum, i64 *pNum){
   i64 v = 0;
   int neg;
   int i, c;
-  while( isspace(*zNum) ) zNum++;
+  while( isspace(*(u8*)zNum) ) zNum++;
   if( *zNum=='-' ){
     neg = 1;
     zNum++;

src/vdbeaux.c

@@ -790,9 +790,9 @@ void sqlite3VdbeIOTraceSql(Vdbe *p){
   if( pOp->opcode==OP_Noop && pOp->p3!=0 ){
     char *z = sqlite3StrDup(pOp->p3);
     int i, j;
-    for(i=0; isspace(z[i]); i++){}
+    for(i=0; isspace((unsigned char)z[i]); i++){}
     for(j=0; z[i]; i++){
-      if( isspace(z[i]) ){
+      if( isspace((unsigned char)z[i]) ){
         if( z[i-1]!=' ' ){
           z[j++] = ' ';
         }