Demonstrates the recommended practice of using a scoped block for automatic resource management, preventing memory leaks.

ID: 602

See: Release 
				
					using uCalcSoftware;

var uc = new uCalc();
// A 'NewUsing' block ensures the expression is automatically released at the end of the scope.
// This is the safest pattern to prevent memory leaks.
using (var expr = new uCalc.Expression("5 * 10")) {
   Console.WriteLine($"Result within scope: {expr.Evaluate()}");
}

// The 'expr' object is now released and its handle is invalid.
Console.WriteLine("Expression has been automatically released.");
				
			
Result within scope: 50
Expression has been automatically released.
Explore 600+ other examples
				
					#include <iostream>
#include "uCalc.h"

using namespace std;
using namespace uCalcSoftware;

int main() {
   uCalc uc;
   // A 'NewUsing' block ensures the expression is automatically released at the end of the scope.
   // This is the safest pattern to prevent memory leaks.
   {
      uCalc::Expression expr("5 * 10");
      expr.Owned(); // Causes expr to be released when it goes out of scope
      cout << "Result within scope: " << expr.Evaluate() << endl;
   }

   // The 'expr' object is now released and its handle is invalid.
   cout << "Expression has been automatically released." << endl;
}
				
			
Result within scope: 50
Expression has been automatically released.
Explore 600+ other examples
				
					Imports System
Imports uCalcSoftware
Public Module Program
   Public Sub Main()
      Dim uc As New uCalc()
      '// A 'NewUsing' block ensures the expression is automatically released at the end of the scope.
      '// This is the safest pattern to prevent memory leaks.
      Using expr As New uCalc.Expression("5 * 10")
         Console.WriteLine($"Result within scope: {expr.Evaluate()}")
      End Using
      
      '// The 'expr' object is now released and its handle is invalid.
      Console.WriteLine("Expression has been automatically released.")
   End Sub
End Module
				
			
Result within scope: 50
Expression has been automatically released.
Explore 600+ other examples