From 6ef5819310f3b0e60a2fe19fe0f849be0b46efce Mon Sep 17 00:00:00 2001
From: Jean-Paul Chaput <Jean-Paul.Chaput@lip6.fr>
Date: Thu, 26 May 2016 18:54:57 +0200
Subject: [PATCH] In getCapacity(), check for empty intervals.

---
 anabatic/src/AnabaticEngine.cpp | 3 +++
 anabatic/src/Edge.cpp           | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/anabatic/src/AnabaticEngine.cpp b/anabatic/src/AnabaticEngine.cpp
index 81321562..fa25e8cf 100644
--- a/anabatic/src/AnabaticEngine.cpp
+++ b/anabatic/src/AnabaticEngine.cpp
@@ -124,6 +124,9 @@ namespace Anabatic {
     Box           ab       = getCell()->getAbutmentBox();
     RoutingGauge* rg       = _configuration->getRoutingGauge();
 
+    span.inflate( 0, -1 );
+    if (span.isEmpty()) return 0;
+
     const vector<RoutingLayerGauge*>& layerGauges = rg->getLayerGauges();
     for ( size_t depth=0 ; depth <= _configuration->getAllowedDepth() ; ++depth ) {
       if (layerGauges[depth]->getType() != Constant::Default) continue;
diff --git a/anabatic/src/Edge.cpp b/anabatic/src/Edge.cpp
index 56590f14..421d25e4 100644
--- a/anabatic/src/Edge.cpp
+++ b/anabatic/src/Edge.cpp
@@ -177,7 +177,7 @@ namespace Anabatic {
   {
     Interval side = getSide();
     _axis     = side.getCenter();
-    _capacity = getAnabatic()->getCapacity( side.inflate(0,-1), _flags );
+    _capacity = getAnabatic()->getCapacity( side, _flags );
 
     _flags.reset( Flags::Invalidated );
     cdebug.log(110) << "Edge::_revalidate() " << this << endl;