#include <iostream>
#include "uCalc.h"

using namespace std;
using namespace uCalcSoftware;

void ucalc_call MyIIf(uCalcBase::Callback cb) {
   auto condition = cb.ArgBool(1);
   auto thenPart = cb.ArgExpr(2);
   auto elsePart = cb.ArgExpr(3);

   if (condition) {
      cb.Return(thenPart.Evaluate());
   } else {
      cb.Return(elsePart.Evaluate());
   }
}
int main() {
   uCalc uc;
   uc.DefineFunction("MyIIf(cond As Bool, ByExpr thenExpr, ByExpr elseExpr)", MyIIf);

   // The 'else' branch contains 1/0, but since the condition is true,
   // it is never evaluated.
   cout << uc.Eval("MyIIf(10 > 5, 100, 1/0)") << endl;

   // The 'then' branch contains 1/0, but it is never evaluated.
   cout << uc.Eval("MyIIf(10 < 5, 1/0, 200)") << endl;
}