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diff src/option_key_fn.sml @ 2240:88cc0f44c940

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Rename C functions and remove functors nested inside modules.
author Ziv Scully <ziv@mit.edu>
date Sun, 19 Jul 2015 19:03:11 -0700
parents
children e4a7e3cd6f11
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/option_key_fn.sml	Sun Jul 19 19:03:11 2015 -0700
@@ -0,0 +1,11 @@
+functor OptionKeyFn(K : ORD_KEY) : ORD_KEY = struct
+
+type ord_key = K.ord_key option
+
+val compare =
+ fn (NONE, NONE) => EQUAL
+  | (NONE, _) => LESS
+  | (_, NONE) => GREATER
+  | (SOME x, SOME y) => K.compare (x, y)
+
+end