From 7fc9c84573642e7993457ed73b37747a3eaba8bc Mon Sep 17 00:00:00 2001
From: graehl <graehl@ec762483-ff6d-05da-a07a-a48fb63a330f>
Date: Fri, 16 Jul 2010 01:56:34 +0000
Subject: oracle directions

git-svn-id: https://ws10smt.googlecode.com/svn/trunk@276 ec762483-ff6d-05da-a07a-a48fb63a330f
---
 decoder/logval.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'decoder/logval.h')

diff --git a/decoder/logval.h b/decoder/logval.h
index 9aaba557..c8c342a3 100644
--- a/decoder/logval.h
+++ b/decoder/logval.h
@@ -58,6 +58,12 @@ class LogVal {
     return *this += b;
   }
 
+  // LogVal(fabs(log(x)),x.s_)
+  friend LogVal abslog(LogVal x) {
+    if (x.v_<0) x.v_=-x.v_;
+    return x;
+  }
+
   LogVal& poweq(const T& power) {
 #if LOGVAL_CHECK_NEG
     if (s_) {
-- 
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