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using System;
struct XUnit
{
public XUnit(double point)
{
this.Point = point;
}
double Point;
public static implicit operator XUnit(double value)
{
XUnit unit;
unit.Point = value;
return unit;
}
public static implicit operator double(XUnit value)
{
return value.Point;
}
}
struct Unit
{
public Unit(double point)
{
this.Point = point;
}
double Point;
public static implicit operator Unit(double value)
{
Unit unit;
unit.Point = value;
return unit;
}
public static implicit operator double(Unit value)
{
return value.Point;
}
}
class Test
{
public static int Main()
{
XUnit xunit = new XUnit();
Unit unit = new Unit();
Unit uu = unit + xunit;
unit += xunit;
return 0;
}
}
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