30 lines
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C#
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using System;
class A
{
public void Foo (out int a)
{
a = 100;
}
}
class B : A
{
public void Foo (ref int a)
{
throw new ApplicationException ("should not be called");
}
}
class C
{
public static int Main ()
{
int x;
new B().Foo (out x);
if (x != 100)
return 1;
return 0;
}
}