From a84f6005a9ce46f1f7540f9176f4d6944cb63e1b Mon Sep 17 00:00:00 2001
From: drh <drh@noemail.net>
Date: Tue, 13 Nov 2001 19:35:14 +0000
Subject: [PATCH] Bug fix: Sometimes NULL results were not being passed as
 nulls to the callback function. (CVS 312)

FossilOrigin-Name: 94ce8282360d4a0dd2032564aae06f0f1902cb5b
---
 manifest      | 12 ++++++------
 manifest.uuid |  2 +-
 src/vdbe.c    |  6 ++++--
 3 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/manifest b/manifest
index c812e366f8..6972a39c7c 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Version\s2.1.0\s(CVS\s461)
-D 2001-11-12T14:00:00
+C Bug\sfix:\sSometimes\sNULL\sresults\swere\snot\sbeing\spassed\sas\snulls\sto\sthe\ncallback\sfunction.\s(CVS\s312)
+D 2001-11-13T19:35:15
 F Makefile.in 6801df952cb1df64aa32e4de85fed24511d28efd
 F Makefile.template 1fdb891f14083ee0b63cf7282f91529634438e7a
 F README a4c0ba11354ef6ba0776b400d057c59da47a4cc0
@@ -49,7 +49,7 @@ F src/test3.c d6775f95fd91f5b3cf0e2382a28e5aaeb68f745b
 F src/tokenize.c 830e9ef684334070a26583d94770bb869e2727bf
 F src/update.c b1e315e20b98a013d30fd9ff3b7d9dc4f29b39b3
 F src/util.c ac83973ecc647d3d3c58708f148442365abf9b94
-F src/vdbe.c 1942750d2406527213382a1dac740a90d0797012
+F src/vdbe.c f1afb7a82016be2cb4cea24cf98dbb5af0ea7214
 F src/vdbe.h cd4c8647051a0c22c0e133c375f1cd17bb8b1e06
 F src/where.c 05d27a01e53c20b8cd10589b7e789b2a64367988
 F test/all.test 2a51e5395ac7c2c539689b123b9782a05e3837fe
@@ -115,7 +115,7 @@ F www/speed.tcl 212a91d555384e01873160d6a189f1490c791bc2
 F www/sqlite.tcl 6a21242a272e9c0939a04419a51c3d50cae33e3e
 F www/tclsqlite.tcl 13d50723f583888fc80ae1a38247c0ab415066fa
 F www/vdbe.tcl bb7d620995f0a987293e9d4fb6185a3b077e9b44
-P 6b3ccb37bf4c10b2d8f96ef8efc22ed8253f1886
-R 256cf76dc431744295dc1e0eacb978d2
+P 56d8390e47bbf8f97fa602863af4c65ac755964e
+R 1fa6790d1eea5ec12130e8c4925105cd
 U drh
-Z 4e0cab8010e7cd6d2f48861b8fd4b471
+Z 8299d71f99165e45e838cc9c083f27eb
diff --git a/manifest.uuid b/manifest.uuid
index a0db9f530a..c981386a54 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-56d8390e47bbf8f97fa602863af4c65ac755964e
\ No newline at end of file
+94ce8282360d4a0dd2032564aae06f0f1902cb5b
\ No newline at end of file
diff --git a/src/vdbe.c b/src/vdbe.c
index cbc66e4938..85cca27d1b 100644
--- a/src/vdbe.c
+++ b/src/vdbe.c
@@ -30,7 +30,7 @@
 ** But other routines are also provided to help in building up
 ** a program instruction by instruction.
 **
-** $Id: vdbe.c,v 1.99 2001/11/12 13:51:43 drh Exp $
+** $Id: vdbe.c,v 1.100 2001/11/13 19:35:15 drh Exp $
 */
 #include "sqliteInt.h"
 #include <ctype.h>
@@ -1284,7 +1284,9 @@ case OP_Callback: {
   VERIFY( if( i<0 ) goto not_enough_stack; )
   VERIFY( if( NeedStack(p, p->tos+2) ) goto no_mem; )
   for(j=i; j<=p->tos; j++){
-    if( (aStack[j].flags & STK_Null)==0 ){
+    if( aStack[j].flags & STK_Null ){
+      zStack[j] = 0;
+    }else{
       if( Stringify(p, j) ) goto no_mem;
     }
   }