Alias using symbol object

ID: 56

See: CreateAlias 
				
					using uCalcSoftware;

var uc = new uCalc();
var MyVar = uc.DefineVariable("MyVar = 123");
var MyAlias = uc.CreateAlias("MyAlias", MyVar);

Console.WriteLine(uc.Eval("MyAlias")); // Contains same value as MyVar
uc.Eval("MyAlias = 456"); // Same as changing MyVar
Console.WriteLine(uc.EvalStr("MyVar")); // MyVar reflects change made in MyAlias
Console.WriteLine("");


// This section below shows how you can have Alias distinguish
// between different variables with the same name

uc.DefineFunction("MyFunc() = MyVar + 1");

// MyVar defined below is a new variable sharing the same name
// MyFunc() will still use the value of the original MyVar
var MyVarAlt = uc.DefineVariable("MyVar = 100");

// The function below uses the new MyVar variable
uc.DefineFunction("MyFunc2() = MyVar + 1");

Console.WriteLine(uc.Eval("MyFunc()"));
Console.WriteLine(uc.Eval("MyFunc2()"));
Console.WriteLine("");

uc.CreateAlias("MyAliasAlt", MyVarAlt);
uc.Eval("MyAlias = 200"); // Changes MyVar used in MyFunc()
uc.Eval("MyAliasAlt = 300"); // Changes MyVar used in MyFunc2()

Console.WriteLine(uc.Eval("MyFunc()"));
Console.WriteLine(uc.Eval("MyFunc2()"));
				
			
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					#include <iostream>
#include "uCalc.h"

using namespace std;
using namespace uCalcSoftware;

int main() {
   uCalc uc;
   auto MyVar = uc.DefineVariable("MyVar = 123");
   auto MyAlias = uc.CreateAlias("MyAlias", MyVar);

   cout << uc.Eval("MyAlias") << endl; // Contains same value as MyVar
   uc.Eval("MyAlias = 456"); // Same as changing MyVar
   cout << uc.EvalStr("MyVar") << endl; // MyVar reflects change made in MyAlias
   cout << "" << endl;


   // This section below shows how you can have Alias distinguish
   // between different variables with the same name

   uc.DefineFunction("MyFunc() = MyVar + 1");

   // MyVar defined below is a new variable sharing the same name
   // MyFunc() will still use the value of the original MyVar
   auto MyVarAlt = uc.DefineVariable("MyVar = 100");

   // The function below uses the new MyVar variable
   uc.DefineFunction("MyFunc2() = MyVar + 1");

   cout << uc.Eval("MyFunc()") << endl;
   cout << uc.Eval("MyFunc2()") << endl;
   cout << "" << endl;

   uc.CreateAlias("MyAliasAlt", MyVarAlt);
   uc.Eval("MyAlias = 200"); // Changes MyVar used in MyFunc()
   uc.Eval("MyAliasAlt = 300"); // Changes MyVar used in MyFunc2()

   cout << uc.Eval("MyFunc()") << endl;
   cout << uc.Eval("MyFunc2()") << endl;
}
				
			
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					Imports System
Imports uCalcSoftware
Public Module Program
   Public Sub Main()
      Dim uc As New uCalc()
      Dim MyVar = uc.DefineVariable("MyVar = 123")
      Dim MyAlias = uc.CreateAlias("MyAlias", MyVar)
      
      Console.WriteLine(uc.Eval("MyAlias")) '// Contains same value as MyVar
      uc.Eval("MyAlias = 456") '// Same as changing MyVar
      Console.WriteLine(uc.EvalStr("MyVar")) '// MyVar reflects change made in MyAlias
      Console.WriteLine("")
      
      
      '// This section below shows how you can have Alias distinguish
      '// between different variables with the same name
      
      uc.DefineFunction("MyFunc() = MyVar + 1")
      
      '// MyVar defined below is a new variable sharing the same name
      '// MyFunc() will still use the value of the original MyVar
      Dim MyVarAlt = uc.DefineVariable("MyVar = 100")
      
      '// The function below uses the new MyVar variable
      uc.DefineFunction("MyFunc2() = MyVar + 1")
      
      Console.WriteLine(uc.Eval("MyFunc()"))
      Console.WriteLine(uc.Eval("MyFunc2()"))
      Console.WriteLine("")
      
      uc.CreateAlias("MyAliasAlt", MyVarAlt)
      uc.Eval("MyAlias = 200") '// Changes MyVar used in MyFunc()
      uc.Eval("MyAliasAlt = 300") '// Changes MyVar used in MyFunc2()
      
      Console.WriteLine(uc.Eval("MyFunc()"))
      Console.WriteLine(uc.Eval("MyFunc2()"))
   End Sub
End Module
				
			
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