From 10aa14592a179931ad605bce44a64b31a79ce007 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Fri, 28 Mar 2014 10:18:04 +0100
Subject: Add a mechanism to recursively access to half-size packet types

---
 Eigen/src/Core/arch/AVX/Complex.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'Eigen/src/Core/arch/AVX/Complex.h')

diff --git a/Eigen/src/Core/arch/AVX/Complex.h b/Eigen/src/Core/arch/AVX/Complex.h
index ec9c861f9..7c1947a4f 100644
--- a/Eigen/src/Core/arch/AVX/Complex.h
+++ b/Eigen/src/Core/arch/AVX/Complex.h
@@ -25,10 +25,12 @@ struct Packet4cf
 template<> struct packet_traits<std::complex<float> >  : default_packet_traits
 {
   typedef Packet4cf type;
+  typedef Packet2cf half;
   enum {
     Vectorizable = 1,
     AlignedOnScalar = 1,
     size = 4,
+    HasHalfPacket = 1,
 
     HasAdd    = 1,
     HasSub    = 1,
@@ -257,10 +259,12 @@ struct Packet2cd
 template<> struct packet_traits<std::complex<double> >  : default_packet_traits
 {
   typedef Packet2cd type;
+  typedef Packet1cd half;
   enum {
     Vectorizable = 1,
     AlignedOnScalar = 0,
     size = 2,
+    HasHalfPacket = 1,
 
     HasAdd    = 1,
     HasSub    = 1,
-- 
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