In the VDBE, when an integer value will not fit into a 32-bit int, store it

in a double instead.  Ticket #408. (CVS 1064)

FossilOrigin-Name: 7514c3db165e8cc5c696b2b345844949a0e45a61

manifest

@@ -1,5 +1,5 @@
-C Version\s2.8.5\s(CVS\s1063)
-D 2003-07-22T13:20:28
+C In\sthe\sVDBE,\swhen\san\sinteger\svalue\swill\snot\sfit\sinto\sa\s32-bit\sint,\sstore\sit\nin\sa\sdouble\sinstead.\s\sTicket\s#408.\s(CVS\s1064)
+D 2003-07-27T17:16:07
 F Makefile.in 9ad23ed4ca97f9670c4496432e3fbd4b3760ebde
 F Makefile.linux-gcc b86a99c493a5bfb402d1d9178dcdc4bd4b32f906
 F README f1de682fbbd94899d50aca13d387d1b3fd3be2dd
@@ -59,7 +59,7 @@ F src/trigger.c 6ff205aaac4869e402d9902e528e1d22a85de14c
 F src/update.c 24260b4fda00c9726d27699a0561d53c0dccc397
 F src/util.c 566c7780170dd11fb1ad5de3ba81f0dfea7cccf0
 F src/vacuum.c 0820984615786c9ccdaad8032a792309b354a8eb
-F src/vdbe.c b5feda6d6fd818dc4541323b0f61bf03e1c89b91
+F src/vdbe.c 779fa3b15148161282a71241ff9733a54a8b0648
 F src/vdbe.h d853ed6cc4727fa9e8ace6187c55afcf817041dd
 F src/where.c 83b2a2d26d5c3bea33457a83e541bb1dcf7b1248
 F test/all.test 569a92a8ee88f5300c057cc4a8f50fbbc69a3242
@@ -97,7 +97,7 @@ F test/memdb.test cd4580f466f34c42354612a375c5adb90447e4c4
 F test/memleak.test a18e6810cae96d2f6f5136920267adbefc8e1e90
 F test/minmax.test 6d9b6d6ee34f42e2a58dffece1f76d35f446b3af
 F test/misc1.test c7dc2f2bd702d8283e885a64ec0714be26cfb051
-F test/misc2.test 36410e371d3924f7373988935219bda5a52cea4e
+F test/misc2.test d8a0b59399a53fd27e74a8fac2a22d5271b9bded
 F test/misuse.test a3aa2b18a97e4c409a1fcaff5151a4dd804a0162
 F test/notnull.test 7a08117a71e74b0321aaa937dbeb41a09d6eb1d0
 F test/null.test 5c2b57307e4b6178aae825eb65ddbee01e76b0fd
@@ -168,7 +168,7 @@ F www/speed.tcl 2f6b1155b99d39adb185f900456d1d592c4832b3
 F www/sqlite.tcl 3c83b08cf9f18aa2d69453ff441a36c40e431604
 F www/tclsqlite.tcl 1db15abeb446aad0caf0b95b8b9579720e4ea331
 F www/vdbe.tcl 9b9095d4495f37697fd1935d10e14c6015e80aa1
-P 510761cf505222c68ce3404aad94e1cc28b703ed
-R 3cdebdbdf77168c78500a77d55386f84
+P 95fba440e79c066c0d6f6205a3d7dcb6c870b1c9
+R e9b4de6f6867968162bbbf4cd0e0f4a9
 U drh
-Z 5c66706afb60592fa14ef3a74a39762b
+Z 3a09a33ae6ae46b79a22e81ad9d2a3ad

manifest.uuid

@@ -1 +1 @@
-95fba440e79c066c0d6f6205a3d7dcb6c870b1c9
+7514c3db165e8cc5c696b2b345844949a0e45a61

src/vdbe.c

@@ -36,7 +36,7 @@
 ** in this file for details.  If in doubt, do not deviate from existing
 ** commenting and indentation practices when changing or adding code.
 **
-** $Id: vdbe.c,v 1.234 2003/07/22 09:24:45 danielk1977 Exp $
+** $Id: vdbe.c,v 1.235 2003/07/27 17:16:07 drh Exp $
 */
 #include "sqliteInt.h"
 #include "os.h"
@@ -997,8 +997,10 @@ static void hardRelease(Vdbe *p, int i){
 }
 
 /*
-** Return TRUE if zNum is an integer and write
-** the value of the integer into *pNum.
+** Return TRUE if zNum is a 32-bit signed integer and write
+** the value of the integer into *pNum.  If zNum is not an integer
+** or is an integer that is too large to be expressed with just 32
+** bits, then return false.
 **
 ** Under Linux (RedHat 7.2) this routine is much faster than atoi()
 ** for converting strings into integers.
@@ -1006,6 +1008,7 @@ static void hardRelease(Vdbe *p, int i){
 static int toInt(const char *zNum, int *pNum){
   int v = 0;
   int neg;
+  int i, c;
   if( *zNum=='-' ){
     neg = 1;
     zNum++;
@@ -1015,13 +1018,11 @@ static int toInt(const char *zNum, int *pNum){
   }else{
     neg = 0;
   }
-  if( *zNum==0 ) return 0;
-  while( isdigit(*zNum) ){
-    v = v*10 + *zNum - '0';
-    zNum++;
+  for(i=0; (c=zNum[i])>='0' && c<='9'; i++){
+    v = v*10 + c - '0';
   }
   *pNum = neg ? -v : v;
-  return *zNum==0;
+  return c==0 && i>0 && (i<10 || (i==10 && memcmp(zNum,"2147483647",10)<=0));
 }
 
 /*

test/misc2.test

@@ -13,7 +13,7 @@
 # This file implements tests for miscellanous features that were
 # left out of other test files.
 #
-# $Id: misc2.test,v 1.4 2003/07/09 16:34:56 drh Exp $
+# $Id: misc2.test,v 1.5 2003/07/27 17:16:08 drh Exp $
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
@@ -61,3 +61,40 @@ do_test misc2-3.1 {
     SELECT t1.b+t2.b AS a, t1.a, t2.a FROM t1, t2 WHERE a==10
   }
 } {1 {ambiguous column name: a}}
+
+# Make sure 32-bit integer overflow is handled properly in queries.
+# ticket #408
+#
+do_test misc2-4.1 {
+  execsql {
+    INSERT INTO t1 VALUES(4000000000,'a','b');
+    SELECT a FROM t1 WHERE a>1;
+  }
+} {4000000000}
+do_test misc2-4.2 {
+  execsql {
+    INSERT INTO t1 VALUES(2147483648,'b2','c2');
+    INSERT INTO t1 VALUES(2147483647,'b3','c3');
+    SELECT a FROM t1 WHERE a>2147483647;
+  }
+} {4000000000 2147483648}
+do_test misc2-4.3 {
+  execsql {
+    SELECT a FROM t1 WHERE a<2147483648;
+  }
+} {1 2147483647}
+do_test misc2-4.4 {
+  execsql {
+    SELECT a FROM t1 WHERE a<=2147483648;
+  }
+} {1 2147483648 2147483647}
+do_test misc2-4.5 {
+  execsql {
+    SELECT a FROM t1 WHERE a<10000000000;
+  }
+} {1 4000000000 2147483648 2147483647}
+do_test misc2-4.6 {
+  execsql {
+    SELECT a FROM t1 WHERE a<1000000000000 ORDER BY 1;
+  }
+} {1 2147483647 2147483648 4000000000}