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[Caml-list] Stupid question
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Date: 2004-01-14 (23:01)
From: Brian Hurt <bhurt@s...>
Subject: [Caml-list] Stupid question

I was poking around in the produced assembly code of some ocaml code of 
mine, and I noticed something.  The construct:
	if (x < m) <> (y < m) then

when the compiler knows that x, y, and m are all ints, it calls an 
external C routine to compare the two booleans.  But the construct:

	if (x < m) != (y < m) then

does not.  Now, this isn't a big deal- I just replaced <> with != and no 
problem.  But I was kind of interested in why the compiler didn't catch 
and optimize this.  Is there some sort of subtle semantic difference I'm 
too dense to see?

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