Execute

ExecuteMethod

Rapidly executes code that was parsed with Parse or passed By Expression for which a result is not required

Syntax

Execute()

Remarks

This can be used in cases where the reutrn value is not needed, such as statements that represent code to be executed rather than a math expression.

Example 1: Performing a summation; a return value is needed only at the very end

VB
C#
Delphi
C++
VC++.NET


          
Dim VariableX = uc.DefineVariable("x")
Dim Total = uc.DefineVariable("Total")
Dim Expression As string
Console.Write("Enter an expression (Ex: Total = Total + x^2 + 5): ")
Expression = Console.ReadLine()
Dim ParsedExpr = uc.Parse(Expression)

Dim x As double
for x = 1 To 10
   VariableX.SetVariableValue(x)
   ParsedExpr.Execute()
   Console.WriteLine(uc.Eval("x") + "   Sub total = " + uc.Eval("Total"))
Next
' Output
' 1   Sub total = 6
' 2   Sub total = 15
' 3   Sub total = 29
' 4   Sub total = 50
' 5   Sub total = 80
' 6   Sub total = 121
' 7   Sub total = 175
' 8   Sub total = 244
' 9   Sub total = 330
' 10   Sub total = 435


          
var VariableX = uc.DefineVariable("x");
var Total = uc.DefineVariable("Total");
string Expression;
Console.Write("Enter an expression (Ex: Total = Total + x^2 + 5): ");
Expression = Console.ReadLine();
var ParsedExpr = uc.Parse(Expression);

for (double x = 1; x <= 10; x = x + 1) {
   VariableX.SetVariableValue(x);
   ParsedExpr.Execute();
   Console.WriteLine(uc.Eval("x") + "   Sub total = " + uc.Eval("Total"));
}
// Output
// 1   Sub total = 6
// 2   Sub total = 15
// 3   Sub total = 29
// 4   Sub total = 50
// 5   Sub total = 80
// 6   Sub total = 121
// 7   Sub total = 175
// 8   Sub total = 244
// 9   Sub total = 330
// 10   Sub total = 435

Console.WriteLine("Total = " + uc.Eval("Total")); // Returns "Total = 435";

ParsedExpr.Release();
VariableX.Release();


          
//var VariableX = uc.DefineVariable('x');
//var Total = uc.DefineVariable('Total');
      Write('Enter an expression (Ex: Total = Total + x^2 + 5): ')
Expression = ReadLn();
//var ParsedExpr = uc.Parse(Expression);

      for x := 1 to 10 do
begin
   VariableX.SetVariableValue(x);
         ParsedExpr.Execute();
         WriteLn(uc.Eval('x') + '   Sub total = ' + uc.Eval('Total'));
End;
      // Output
// 1   Sub total = 6
// 2   Sub total = 15
// 3   Sub total = 29
// 4   Sub total = 50
// 5   Sub total = 80
// 6   Sub total = 121
// 7   Sub total = 175
// 8   Sub total = 244
// 9   Sub total = 330
// 10   Sub total = 435


          
auto VariableX = uc.DefineVariable("x");
auto Total = uc.DefineVariable("Total");
string Expression;      
cout << "Enter an expression (Ex: Total = Total + x^2 + 5): " << endl;
cin >> Expression; // Ex: Total = Total + x^2 + 5
auto ParsedExpr = uc.Parse(Expression);

for (double x = 1; x <= 10; x = x + 1) {
   VariableX.SetVariableValue(x);
   ParsedExpr.Execute();
   cout << uc.Eval("x") << "   Sub total = " << uc.Eval("Total") << endl;
}
// Output
// 1   Sub total = 6
// 2   Sub total = 15
// 3   Sub total = 29
// 4   Sub total = 50
// 5   Sub total = 80
// 6   Sub total = 121
// 7   Sub total = 175
// 8   Sub total = 244
// 9   Sub total = 330
// 10   Sub total = 435

cout << "Total = " << uc.Eval("Total") << endl; // Returns "Total = 435";

ParsedExpr.Release();
VariableX.Release();


          
auto VariableX = uc.DefineVariable("x");
auto Total = uc.DefineVariable("Total");
string ^ Expression;
Console::Write("Enter an expression (Ex: Total = Total + x^2 + 5): ");
Expression = Console::ReadLine();
auto ParsedExpr = uc.Parse(Expression);

for (double x = 1; x <= 10; x = x + 1) {
   VariableX.SetVariableValue(x);
   ParsedExpr.Execute();
   Console::WriteLine(uc.Eval("x") + "   Sub total = " + uc.Eval("Total"));
}
// Output
// 1   Sub total = 6
// 2   Sub total = 15
// 3   Sub total = 29
// 4   Sub total = 50
// 5   Sub total = 80
// 6   Sub total = 121
// 7   Sub total = 175
// 8   Sub total = 244
// 9   Sub total = 330
// 10   Sub total = 435

Console::WriteLine("Total = " + uc.Eval("Total")); // Returns "Total = 435";

ParsedExpr.Release();
VariableX.Release();

DLL import code

VB
C#
Delphi
C++
VC++.NET


            <DllImport(uCalcDLL, CharSet:=CharSet.Ansi, CallingConvention:=CallingConvention.Cdecl, EntryPoint:="Execute")> _

Private Sub Execute__(ByVal ExprHandle As IntPtr)
End Sub


            [DllImport(uCalcDLL, CharSet=CharSet.Ansi, CallingConvention=CallingConvention.Cdecl, EntryPoint="Execute")]

protected static extern  void Execute_(IntPtr ExprHandle);


            {DLLImport}procedure Execute__(ExprHandle: System.Pointer); cdecl; external uCalcDLL name 'Execute';


            typedef  void (* __Execute)(void *ExprHandle);


            [DllImport(uCalcLib, CharSet=CharSet::Ansi, CallingConvention=CallingConvention::Cdecl, EntryPoint = "Execute")]

static void Execute_(void *  ExprHandle);