Fix compiler warnings.

FossilOrigin-Name: 5227add3c8d509de2e081249163fafdf30ac3173a6d710957f3c3b6f03e7017e

manifest

@@ -1,5 +1,5 @@
-C Improvements\sto\serror\shandling.
-D 2023-10-06T14:52:49.860
+C Fix\scompiler\swarnings.
+D 2023-10-06T14:59:40.414
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -670,7 +670,7 @@ F src/hash.h 3340ab6e1d13e725571d7cee6d3e3135f0779a7d8e76a9ce0a85971fa3953c51
 F src/hwtime.h f9c2dfb84dce7acf95ce6d289e46f5f9d3d1afd328e53da8f8e9008e3b3caae6
 F src/in-operator.md 10cd8f4bcd225a32518407c2fb2484089112fd71
 F src/insert.c 3f0a94082d978bbdd33c38fefea15346c6c6bffb70bc645a71dc0f1f87dd3276
-F src/json.c fe8cd7b38e947a89fbe8b8099a88ee363d02a6747009ba5246a517de1e15159f
+F src/json.c e1a4c5ffadbeaab6dfd9dfb687f8c7a0b9e012ad2ec8b74223e75f86295a5a5e
 F src/legacy.c d7874bc885906868cd51e6c2156698f2754f02d9eee1bae2d687323c3ca8e5aa
 F src/loadext.c 98cfba10989b3da6f1807ad42444017742db7f100a54f1032af7a8b1295912c0
 F src/main.c 618aeb399e993cf561864f4b0cf6a331ee4f355cf663635f8d9da3193a46aa40
@@ -2124,8 +2124,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 6409d307915f8969f12df2d5ffa961645bd4db7ccfbd6f52237a217b6a867252
-R bb54780cc2adfb5e91d01e5a38070ac9
+P b41dd237fb6c0dd7daedeaaf81dbc4fdb31cf511fd32cd3d4ee69db34e389915
+R d43877b0997e4344224eb4366c47821e
 U drh
-Z 4eb2d45211dd6d4bee3b0c79a0072e1a
+Z 0dbbe0cfb7ed03f93b950daed7da83cd
 # Remove this line to create a well-formed Fossil manifest.

manifest.uuid

@@ -1 +1 @@
-b41dd237fb6c0dd7daedeaaf81dbc4fdb31cf511fd32cd3d4ee69db34e389915
+5227add3c8d509de2e081249163fafdf30ac3173a6d710957f3c3b6f03e7017e

src/json.c

@@ -3267,7 +3267,7 @@ static u32 jsonRenderBlob(
       break;
     }
     case JSONB_INT5: {  /* Integer literal in hexadecimal notation */
-      int k = 2;
+      u32 k = 2;
       sqlite3_uint64 u = 0;
       const char *zIn = (const char*)&pParse->aBlob[i+n];
       if( zIn[0]=='+' || zIn[0]=='-' ){
@@ -3281,7 +3281,7 @@ static u32 jsonRenderBlob(
       break;
     }
     case JSONB_FLOAT5: { /* Float literal missing digits beside "." */
-      int k = 0;
+      u32 k = 0;
       const char *zIn = (const char*)&pParse->aBlob[i+n];
       if( zIn[0]=='+' || zIn[0]=='-' ){
         if( zIn[0]=='-' ) jsonAppendChar(pOut, '-');
@@ -3753,14 +3753,14 @@ static u32 jsonLookupBlobStep(
         k = jsonbArrayCount(pParse, iRoot);
         i = 2;
         if( zPath[2]=='-' && sqlite3Isdigit(zPath[3]) ){
-          unsigned int x = 0;
+          unsigned int nn = 0;
           i = 3;
           do{
-            x = x*10 + zPath[i] - '0';
+            nn = nn*10 + zPath[i] - '0';
             i++;
           }while( sqlite3Isdigit(zPath[i]) );
-          if( x>k ) return 0;
-          k -= x;
+          if( nn>k ) return 0;
+          k -= nn;
         }
         if( zPath[i]!=']' ){
           *pzErr = zPath;
@@ -3997,7 +3997,7 @@ static void jsonExtractFromBlob(
 ){
   const char *zPath = (const char*)sqlite3_value_text(pPath);
   const char *zErr = 0;
-  u32 i;
+  u32 i = 0;
   JsonParse px;
   if( zPath==0 ) return;
   memset(&px, 0, sizeof(px));
@@ -4031,6 +4031,9 @@ static void jsonExtractFromBlob(
     }
     i = jsonLookupBlobStep(&px, 0, zPath, &zErr);
     jsonStringReset(&jx);
+  }else{
+    sqlite3_result_error(ctx, "bad path", -1);
+    return;
   }
   if( i<px.nBlob ){
     jsonReturnFromBlob(&px, i, ctx);