From b8763639bbef1f0f01cb83c4ac98eb9ff1827b96 Mon Sep 17 00:00:00 2001
From: drh <drh@noemail.net>
Date: Tue, 19 Jan 2016 17:54:21 +0000
Subject: [PATCH] Fix two harmless compiler warnings about comparisons of
 dangling pointers.

FossilOrigin-Name: 86944f193f1f06b64471953bb5713ecea7f3d803
---
 manifest        | 16 ++++++++--------
 manifest.uuid   |  2 +-
 src/vdbeaux.c   |  2 +-
 src/whereexpr.c |  4 +++-
 4 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/manifest b/manifest
index a92d3b5535..4f8ac4d9b8 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Add\sfurther\sfts5\stests.\s100%\scode\scoverage\sis\sfinally\srestored.
-D 2016-01-19T16:06:23.776
+C Fix\stwo\sharmless\scompiler\swarnings\sabout\scomparisons\sof\sdangling\spointers.
+D 2016-01-19T17:54:21.554
 F Makefile.in a476545d0c8626224d0bacac85c6e2967474af81
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc 01e855f958932d0d3ed62ec675fc63e2cef61fcb
@@ -414,7 +414,7 @@ F src/vdbe.c b90d9d38e5e0260c2eafa3cb4c2274d8ea94da27
 F src/vdbe.h 7a733ea8aac1b77305a67698e784fa3484ee3337
 F src/vdbeInt.h 42eefa4f9e7432b9968d321b44e48821ec13b189
 F src/vdbeapi.c ffae8f5af4570fbd548504e815e9fb7227f0822e
-F src/vdbeaux.c 95e067a5e2a75e128d45ca597388dc83c58142f0
+F src/vdbeaux.c fcbca1519bdfe619edf2e95b64aad8e7b718494c
 F src/vdbeblob.c 37c3d11a753e403698c69e17383d282e1ae73e75
 F src/vdbemem.c b9181e77eca2a095929d46250daf85c8d2621fc0
 F src/vdbesort.c 0971557e5d3c289e46f56a52aed2197c13251de7
@@ -427,7 +427,7 @@ F src/walker.c 0f142b5bd3ed2041fc52d773880748b212e63354
 F src/where.c bb69654f841ae7af0a20cc6fb8f0ac57901c31be
 F src/whereInt.h 78b6b4de94db84aecbdc07fe3e38f648eb391e9a
 F src/wherecode.c 8dee26eb181ea9daa8b1a4d96f34c0860aaf99bd
-F src/whereexpr.c eebba8340c90de73b3d3bbe8c43b84559b8e6e2c
+F src/whereexpr.c 197a448b52073aee43eca3a2233fc113369eb2d4
 F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2
 F test/affinity2.test a6d901b436328bd67a79b41bb0ac2663918fe3bd
 F test/aggerror.test a867e273ef9e3d7919f03ef4f0e8c0d2767944f2
@@ -1419,7 +1419,7 @@ F tool/vdbe_profile.tcl 246d0da094856d72d2c12efec03250d71639d19f
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh 48bd54594752d5be3337f12c72f28d2080cb630b
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
-P acaf426449bf6fd3140fd63141750ff69d1119a5
-R d08b3552b8f27561f27085942ba60d34
-U dan
-Z 7a4ceb8872d3ff383d019f72843d63a3
+P b914ece0d146cfc8adba4dc4e8633e14f174d6ea
+R 3e5d796fe259d88063a5203a70f6d659
+U drh
+Z 42379f3c18aeff0e63b7fa93d55446fd
diff --git a/manifest.uuid b/manifest.uuid
index 0f9bae7512..5fc95f9db8 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-b914ece0d146cfc8adba4dc4e8633e14f174d6ea
\ No newline at end of file
+86944f193f1f06b64471953bb5713ecea7f3d803
\ No newline at end of file
diff --git a/src/vdbeaux.c b/src/vdbeaux.c
index 492a41599b..7cce57a738 100644
--- a/src/vdbeaux.c
+++ b/src/vdbeaux.c
@@ -3655,9 +3655,9 @@ static int vdbeCompareMemString(
     v2 = sqlite3ValueText((sqlite3_value*)&c2, pColl->enc);
     n2 = v2==0 ? 0 : c2.n;
     rc = pColl->xCmp(pColl->pUser, n1, v1, n2, v2);
+    if( (v1==0 || v2==0) && prcErr ) *prcErr = SQLITE_NOMEM;
     sqlite3VdbeMemRelease(&c1);
     sqlite3VdbeMemRelease(&c2);
-    if( (v1==0 || v2==0) && prcErr ) *prcErr = SQLITE_NOMEM;
     return rc;
   }
 }
diff --git a/src/whereexpr.c b/src/whereexpr.c
index 99a97079be..e0b8bac1b7 100644
--- a/src/whereexpr.c
+++ b/src/whereexpr.c
@@ -202,6 +202,7 @@ static int isLikeOrGlob(
   sqlite3 *db = pParse->db;  /* Database connection */
   sqlite3_value *pVal = 0;
   int op;                    /* Opcode of pRight */
+  int rc;                    /* Result code to return */
 
   if( !sqlite3IsLikeFunction(db, pExpr, pnoCase, wc) ){
     return 0;
@@ -267,8 +268,9 @@ static int isLikeOrGlob(
     }
   }
 
+  rc = (z!=0);
   sqlite3ValueFree(pVal);
-  return (z!=0);
+  return rc;
 }
 #endif /* SQLITE_OMIT_LIKE_OPTIMIZATION */