Fixed typo | added test

Author: Killili

hdr/sqlite_modern_cpp.h

@@ -471,7 +471,7 @@ template <typename BoostOptionalT> database_binder::chain_type& operator <<(data
 		exceptions::throw_sqlite_error(hresult);
 	}
 
-	++db._inx;
+	++db->_inx;
 	return db;
 }
 

tests/shared_connection.cc

@@ -0,0 +1,59 @@
+#include <iostream>
+#include <cstdlib>
+#include <unistd.h>
+#include <sqlite_modern_cpp.h>
+
+using namespace  sqlite;
+using namespace std;
+
+struct TmpFile {
+	string fname;
+
+	TmpFile() {
+		char f[] = "/tmp/sqlite_modern_cpp_test_XXXXXX";
+		int fid = mkstemp(f);
+		close(fid);
+
+		fname = f;
+	}
+
+	~TmpFile() {
+		unlink(fname.c_str());
+	}
+};
+
+int main() {
+	try {
+
+		TmpFile file;
+		database db(file.fname);
+
+		{
+
+			auto con = db.get_sqlite3_connection();
+
+			{
+				database db2(con);
+				int test = 0;
+				db2 << "select 1" >> test;
+				if(test != 1) exit(EXIT_FAILURE);
+			}
+
+			int test = 0;
+			db << "select 1" >> test;
+			if(test != 1) exit(EXIT_FAILURE);
+
+		}
+
+
+	} catch(sqlite_exception e) {
+		cout << "Unexpected error " << e.what() << endl;
+		exit(EXIT_FAILURE);
+	} catch(...) {
+		cout << "Unknown error\n";
+		exit(EXIT_FAILURE);
+	}
+
+	cout << "OK\n";
+	exit(EXIT_SUCCESS);
+}