Internal test to confirm instance isolation by proving a DataType is strictly bound to its parent uCalc instance.

ID: 562

See: uCalc = [uCalc] 
				
					using uCalcSoftware;

var uc = new uCalc();
// Create two completely separate uCalc instances.
var uc1 = new uCalc();
uc1.DefineVariable("x = 100");

var uc2 = new uCalc();
uc2.DefineVariable("x = 200");

// Get the DataType for 'Int' from the *first* instance.
var intType_from_uc1 = uc1.DataTypeOf("Int");

// Use the .uCalc() method to get the parent instance.
// This should be uc1, so evaluating 'x' should yield 100.
var parent = intType_from_uc1.uCalc;
Console.WriteLine($"Parent of intType_from_uc1 evaluates 'x' to: {parent.Eval("x")}");

// Get the DataType for 'Int' from the *second* instance.
var intType_from_uc2 = uc2.DataTypeOf("Int");

// This should be uc2, so evaluating 'x' should yield 200.
parent = intType_from_uc2.uCalc;
Console.WriteLine($"Parent of intType_from_uc2 evaluates 'x' to: {parent.Eval("x")}");
				
			
Parent of intType_from_uc1 evaluates 'x' to: 100
Parent of intType_from_uc2 evaluates 'x' to: 200
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					#include <iostream>
#include "uCalc.h"

using namespace std;
using namespace uCalcSoftware;

int main() {
   uCalc uc;
   // Create two completely separate uCalc instances.
   uCalc uc1;
   uc1.DefineVariable("x = 100");

   uCalc uc2;
   uc2.DefineVariable("x = 200");

   // Get the DataType for 'Int' from the *first* instance.
   auto intType_from_uc1 = uc1.DataTypeOf("Int");

   // Use the .uCalc() method to get the parent instance.
   // This should be uc1, so evaluating 'x' should yield 100.
   auto parent = intType_from_uc1.uCalc();
   cout << "Parent of intType_from_uc1 evaluates 'x' to: " << parent.Eval("x") << endl;

   // Get the DataType for 'Int' from the *second* instance.
   auto intType_from_uc2 = uc2.DataTypeOf("Int");

   // This should be uc2, so evaluating 'x' should yield 200.
   parent = intType_from_uc2.uCalc();
   cout << "Parent of intType_from_uc2 evaluates 'x' to: " << parent.Eval("x") << endl;
}
				
			
Parent of intType_from_uc1 evaluates 'x' to: 100
Parent of intType_from_uc2 evaluates 'x' to: 200
Explore 600+ other examples
				
					Imports System
Imports uCalcSoftware
Public Module Program
   Public Sub Main()
      Dim uc As New uCalc()
      '// Create two completely separate uCalc instances.
      Dim uc1 As New uCalc()
      uc1.DefineVariable("x = 100")
      
      Dim uc2 As New uCalc()
      uc2.DefineVariable("x = 200")
      
      '// Get the DataType for 'Int' from the *first* instance.
      Dim intType_from_uc1 = uc1.DataTypeOf("Int")
      
      '// Use the .uCalc() method to get the parent instance.
      '// This should be uc1, so evaluating 'x' should yield 100.
      Dim parent = intType_from_uc1.uCalc
      Console.WriteLine($"Parent of intType_from_uc1 evaluates 'x' to: {parent.Eval("x")}")
      
      '// Get the DataType for 'Int' from the *second* instance.
      Dim intType_from_uc2 = uc2.DataTypeOf("Int")
      
      '// This should be uc2, so evaluating 'x' should yield 200.
      parent = intType_from_uc2.uCalc
      Console.WriteLine($"Parent of intType_from_uc2 evaluates 'x' to: {parent.Eval("x")}")
   End Sub
End Module
				
			
Parent of intType_from_uc1 evaluates 'x' to: 100
Parent of intType_from_uc2 evaluates 'x' to: 200
Explore 600+ other examples