Memory leak fix

README.md

@@ -13,10 +13,11 @@ Easily load variable configuration parameters into your program using this libra
 - Predefined necessary keys and enabled validation
 - Strict configuration file format
 - Comments in configuration file supported
+- Update config file from program
 
 ## Installation
 
-Just download the latest release and unzip it into your project. You can turn it on with:
+Just download the latest release and use cmake build system
 
 ```c++
 #include "config/lib/config.hpp"

example/config.cfg

@@ -10,3 +10,4 @@ DinioServer1Port=5000;
 DinioServer2Port=4048;
 DinioGetIPURL=http://lab-it.ddns.net/getip/index.php; #ovo ide na više A recorda i više servera pod istim domenom
 # DinioGetIPURL2=http://ns-hl.ddns.net/getip/index.php;
+Baba2=Janja;

src/config.cpp

@@ -14,7 +14,10 @@ marcelb::config::config(const string _configFilePath, const vector<string> _nece
 
 
 string marcelb::config::operator[](const string& key) {
-   return element[key];
+   if (element.count(key)) {
+      return element[key];
+   } 
+   return "";
 }
 
 void marcelb::config::update(const string& key, const string& value) {

test/test.cpp

@@ -1,5 +1,6 @@
 #include <iostream>
 #include "../lib/config.hpp"
+#include <unistd.h>
 
 using namespace std;
 using namespace marcelb;
@@ -12,6 +13,6 @@ int main() {
     mycfg.update("Baba2", "Janja");
     cout << mycfg["Baba"];
 
-
+    sleep(10000);
     return 0;
 }