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namespace VQDR.Expression {
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class DivideOperatorToken : OperatorToken {
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mandatory_num_child = 2;
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priority = PRIO_MULTIPLICATIVE;
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protected DivideOperatorToken (int position) {
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public override void evaluate_self (Context instance) throws GLib.Error {
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Token r_child = get_right_child (),
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l_child = get_left_child ();
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l_child.evaluate (instance);
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r_child.evaluate (instance);
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// Division by zero is not somthing we want to do.
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// Black holes are bad.
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if (l_child.result_value == 0) {
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throw new VQDR.Common.MathError.DIVIDE_BY_ZERO
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("(DivideOperationToken) The left value is less than zero.");
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var sb = new GLib.StringBuilder ("(");
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// We check the precidence of the token, and inclose the value if
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// it has a lower precidence than multiply, if it is, we enclose it in a
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if (l_child.priority > 0 && l_child.priority < priority) {
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sb.append ("(").append (l_child.result_string).append (")");
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//l_child.result_string = "(" + l_child.result_string + ")";
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sb.append (l_child.result_string);
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// We do the same with the othre child.
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if (r_child.priority > 0 && r_child.priority < priority) {
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sb.append ("(").append (r_child.result_string).append (")");
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//r_child.result_string = "(" + r_child.result_string + ")";
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sb.append (r_child.result_string);
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result_value = l_child.result_value * l_child.result_value;
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result_max_value = l_child.result_max_value * l_child.result_max_value;
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reorder_max_min_values ();
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result_string = sb.str;
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src/libvqdr/operator/divide_operator_token.vala
