From 1e32e4bdae2e3fb3d1bf68314e146052a3c65561 Mon Sep 17 00:00:00 2001
From: Clifford Wolf <clifford@clifford.at>
Date: Wed, 28 Oct 2015 11:21:55 +0100
Subject: Improved SigMap performance

---
 CodingReadme | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'CodingReadme')

diff --git a/CodingReadme b/CodingReadme
index a385a99dc..5d5d9b32c 100644
--- a/CodingReadme
+++ b/CodingReadme
@@ -93,6 +93,9 @@ creates a bijective map from K to the integers. For example:
 
 It is not possible to remove elements from an idict.
 
+Finally mfp<K> implements a merge-find set data structure (aka. disjoint-set or
+union–find) over the type K ("mfp" = merge-find-promote).
+
   2. Standard STL data types
 
 In Yosys we use std::vector<T> and std::string whenever applicable. When
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