Returning a string (from a callback)

ID: 15

See: ArgStr, DefineFunction, ReturnStr 
				
					using uCalcSoftware;

var uc = new uCalc();

static void TwiceStr(uCalc.Callback cb) {
   cb.ReturnStr(cb.ArgStr(1) + cb.ArgStr(1));
}

uc.DefineFunction("Twice(Txt As String) As String", TwiceStr);
Console.WriteLine(uc.EvalStr("Twice('Bye')"));
				
			
ByeBye
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					#include <iostream>
#include "uCalc.h"

using namespace std;
using namespace uCalcSoftware;

void ucalc_call TwiceStr(uCalcBase::Callback cb) {
   cb.ReturnStr(cb.ArgStr(1) + cb.ArgStr(1));
}
int main() {
   uCalc uc;
   uc.DefineFunction("Twice(Txt As String) As String", TwiceStr);
   cout << uc.EvalStr("Twice('Bye')") << endl;
}
				
			
ByeBye
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					Imports System
Imports uCalcSoftware
Public Module Program
   
   Public Sub TwiceStr(ByVal cb As uCalc.Callback)
      cb.ReturnStr(cb.ArgStr(1) + cb.ArgStr(1))
   End Sub
   Public Sub Main()
      Dim uc As New uCalc()
      uc.DefineFunction("Twice(Txt As String) As String", AddressOf TwiceStr)
      Console.WriteLine(uc.EvalStr("Twice('Bye')"))
   End Sub
End Module
				
			
ByeBye
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