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function int a_func (input int id);
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a_func = id;
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endfunction
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// This should print the following:
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// This is func 2.
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// This is func 1.
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module top;
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initial begin
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$display("this is func %0d.", a_func(2));
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$display("this is func %0d.", a_func(1));
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end
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endmodule
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