Fix some places where a malloc() failure would lead to a segfault. (CVS 580)

FossilOrigin-Name: 01ad352c3c82a86d9c94010cbc85d098b8fbc08a

1 files changed, 3 insertions, 1 deletions

diff --git a/src/expr.c b/src/expr.c
index eafd09592..54b733424 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -12,7 +12,7 @@
 ** This file contains routines used for analyzing expressions and
 ** for generating VDBE code that evaluates expressions in SQLite.
 **
-** $Id: expr.c,v 1.61 2002/05/21 13:43:04 drh Exp $
+** $Id: expr.c,v 1.62 2002/05/23 02:09:04 drh Exp $
 */
 #include "sqliteInt.h"
 
@@ -186,6 +186,7 @@ ExprList *sqliteExprListDup(ExprList *p){
   if( pNew==0 ) return 0;
   pNew->nExpr = p->nExpr;
   pNew->a = sqliteMalloc( p->nExpr*sizeof(p->a[0]) );
+  if( pNew->a==0 ) return 0;
   for(i=0; i<p->nExpr; i++){
     pNew->a[i].pExpr = sqliteExprDup(p->a[i].pExpr);
     pNew->a[i].zName = sqliteStrDup(p->a[i].zName);
@@ -203,6 +204,7 @@ IdList *sqliteIdListDup(IdList *p){
   if( pNew==0 ) return 0;
   pNew->nId = p->nId;
   pNew->a = sqliteMalloc( p->nId*sizeof(p->a[0]) );
+  if( pNew->a==0 ) return 0;
   for(i=0; i<p->nId; i++){
     pNew->a[i].zName = sqliteStrDup(p->a[i].zName);
     pNew->a[i].zAlias = sqliteStrDup(p->a[i].zAlias);