/vqdr/trunk : contents of src/libvqdr/variable.vala at revision 1

: (revision 1)

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namespace VQDR.Expression {
  
  
  /**
   * Represents a variable.
   */
  public struct Variable {
    public int min_val;
    public int max_val;
    public int current_val;
    
    public Variable (int min = 0, int max = 0, int current = 0) {
      this.max_val = max;
      this.min_val = min;
      this.current_val = current;
    }
    
    [CCode (cname = "vqdr_expression_variable_copy")]
    public Variable.copy (Variable other) {
      this.max_val = other.max_val;
      this.min_val = other.min_val;
      this.current_val = other.current_val;
    }
    
    public int compare (Variable other) {
      
      if (this.current_val > other.current_val) {
        return -1;
      } else if (this.current_val < other.current_val) {
        return 1;
      } else {
        if (this.max_val > other.max_val) {
          return -1;
        } else if (this.max_val < other.max_val) {
          return 1;
        } else {
          if (this.min_val > other.min_val) {
            return -1;
          } else if (this.min_val < other.min_val) {
            return 1;
          } // End min_val comp.
        } // End max_val comp
      } // End current_val Comp
      return 0; // They are exacly the same.
    }
    
    /**
     * Compares two Variables.
     * 
     * This is the same as @c compare. It is an alias to the same C function.
     */
    [CCode (cname = "vqdr_expression_variable_equals")]
    public static extern int static_compare (Variable a, Variable b);
    
    /**
     * Is this instance equal to the other?
     */
    public bool equals (Variable other) {
      return equals_values (other.min_val, other.max_val, other.current_val);
    }
    
    public bool equals_values (int min, int max, int current) {
      return (max == this.max_val) &&
             (min == this.min_val) &&
             (current == this.current_val);
    }
    
    
    
    public string to_string () {
      StringBuilder s = new StringBuilder ();
      s.append("(Variable: ");
      s.append_printf ("(max_val: %i, ", max_val);
      s.append_printf ("min_val: %i, ", max_val);
      s.append_printf ("current_val: %i)", current_val);
      s.append(")");
      return s.str;
    }
  }
}

1 by Gustav Hartvigsson * Initial code - far from done	1	namespace VQDR.Expression {
	2
	3
	4	/**
	5	* Represents a variable.
	6	*/
	7	public struct Variable {
	8	public int min_val;
	9	public int max_val;
	10	public int current_val;
	11
	12	public Variable (int min = 0, int max = 0, int current = 0) {
	13	this.max_val = max;
	14	this.min_val = min;
	15	this.current_val = current;
	16	}
	17
	18	[CCode (cname = "vqdr_expression_variable_copy")]
	19	public Variable.copy (Variable other) {
	20	this.max_val = other.max_val;
	21	this.min_val = other.min_val;
	22	this.current_val = other.current_val;
	23	}
	24
	25	public int compare (Variable other) {
	26
	27	if (this.current_val > other.current_val) {
	28	return -1;
	29	} else if (this.current_val < other.current_val) {
	30	return 1;
	31	} else {
	32	if (this.max_val > other.max_val) {
	33	return -1;
	34	} else if (this.max_val < other.max_val) {
	35	return 1;
	36	} else {
	37	if (this.min_val > other.min_val) {
	38	return -1;
	39	} else if (this.min_val < other.min_val) {
	40	return 1;
	41	} // End min_val comp.
	42	} // End max_val comp
	43	} // End current_val Comp
	44	return 0; // They are exacly the same.
	45	}
	46
	47	/**
	48	* Compares two Variables.
	49	*
	50	* This is the same as @c compare. It is an alias to the same C function.
	51	*/
	52	[CCode (cname = "vqdr_expression_variable_equals")]
	53	public static extern int static_compare (Variable a, Variable b);
	54
	55	/**
	56	* Is this instance equal to the other?
	57	*/
	58	public bool equals (Variable other) {
	59	return equals_values (other.min_val, other.max_val, other.current_val);
	60	}
	61
	62	public bool equals_values (int min, int max, int current) {
	63	return (max == this.max_val) &&
	64	(min == this.min_val) &&
65	(current == this.current_val);
66	}
67
68
69
70	public string to_string () {
71	StringBuilder s = new StringBuilder ();
72	s.append("(Variable: ");
73	s.append_printf ("(max_val: %i, ", max_val);
74	s.append_printf ("min_val: %i, ", max_val);
75	s.append_printf ("current_val: %i)", current_val);
76	s.append(")");
77	return s.str;
78	}
79	}
80	}