Upgraded SQLite3 to 3.7.8 and added patch re large exponents

Author: nickgammon

sqlite3/readme.txt

@@ -1,6 +1,6 @@
 Sqlite3 built as follows:
 
-1. Download recent version from http://www.sqlite.org/sqlite-amalgamation-3070701.zip
+1. Download recent version from http://www.sqlite.org/sqlite-amalgamation-3070800.zip
 
 2. Unzip the file
 
@@ -14,11 +14,12 @@ sqlite3ext.h
 3. Edit: sqlite3.c and add the following lines to the start of it:
 
 // These first few lines added by NJG
-// version 3.7.7.1
+// version 3.7.8
 # pragma warning (disable : 4018)  // signed/unsigned mismatch
 # pragma warning (disable : 4022)  // pointer mismatch for actual parameter x
 # pragma warning (disable : 4047)  // 'void ** ' differs in levels of indirection from 'long *'
 # pragma warning (disable : 4049)  // terminating line number emission
+# pragma warning (disable : 4056)  // overflow in floating-point constant arithmetic
 # pragma warning (disable : 4100)  // unreferenced formal parameter
 # pragma warning (disable : 4115)  // named type definition in parentheses
 # pragma warning (disable : 4127)  // conditional expression is constant
@@ -28,6 +29,7 @@ sqlite3ext.h
 # pragma warning (disable : 4701)  // 'xxx' may be used without having been initialized
 # pragma warning (disable : 4702)  // unreachable code
 # pragma warning (disable : 4706)  // assignment within conditional expression
+# pragma warning (disable : 4756)  // overflow in constant arithmetic
 # pragma warning (disable : 4761)  // integral size mismatch in argument; conversion supplied
 
 #define SQLITE_SOUNDEX 1
@@ -36,3 +38,27 @@ sqlite3ext.h
 #define SQLITE_ENABLE_RTREE 1
 #define SQLITE_USE_URI 1
 
+
+
+Note: added patch:
+
+http://www.sqlite.org/src/ci/59bb999c8b?sbs=0
+
+
+@@ -379,10 +379,16 @@
+           result = s / scale;
+           result /= 1.0e+308;
+         }else{
+           result = s * scale;
+           result *= 1.0e+308;
++        }
++      }else if( e>=342 ){
++        if( esign<0 ){
++          result = 0.0*s;
++        }else{
++          result = 1e308*1e308*s;  /* Infinity */
+         }
+       }else{
+         /* 1.0e+22 is the largest power of 10 than can be
+         ** represented exactly. */
+         while( e%22 ) { scale *= 1.0e+1; e -= 1; }