Adds more database methods.

Author: iwongu

headeronly_src/sqlite3pp.h

@@ -98,7 +98,10 @@ namespace sqlite3pp
     int enable_triggers(bool enable = true);
     int enable_extended_result_codes(bool enable = true);
 
+    int changes() const;
+
     int error_code() const;
+    int extended_error_code() const;
     char const* error_msg() const;
 
     int execute(char const* sql);

headeronly_src/sqlite3pp.ipp

@@ -182,11 +182,21 @@ namespace sqlite3pp
     return sqlite3_extended_result_codes(db_, enable ? 1 : 0);
   }
 
+  inline int database::changes() const
+  {
+    return sqlite3_changes(db_);
+  }
+
   inline int database::error_code() const
   {
     return sqlite3_errcode(db_);
   }
 
+  inline int database::extended_error_code() const
+  {
+    return sqlite3_extended_errcode(db_);
+  }
+
   inline char const* database::error_msg() const
   {
     return sqlite3_errmsg(db_);

src/sqlite3pp.cpp

@@ -184,11 +184,21 @@ namespace sqlite3pp
     return sqlite3_extended_result_codes(db_, enable ? 1 : 0);
   }
 
+  int database::changes() const
+  {
+    return sqlite3_changes(db_);
+  }
+
   int database::error_code() const
   {
     return sqlite3_errcode(db_);
   }
 
+  int database::extended_error_code() const
+  {
+    return sqlite3_extended_errcode(db_);
+  }
+
   char const* database::error_msg() const
   {
     return sqlite3_errmsg(db_);

src/sqlite3pp.h

@@ -99,7 +99,10 @@ namespace sqlite3pp
     int enable_triggers(bool enable = true);
     int enable_extended_result_codes(bool enable = true);
 
+    int changes() const;
+
     int error_code() const;
+    int extended_error_code() const;
     char const* error_msg() const;
 
     int execute(char const* sql);