From 33b120948dc63f66ee257ef7a0fb49cc4f9342ba Mon Sep 17 00:00:00 2001
From: Olivier Parcollet <olivier.parcollet@cea.fr>
Date: Fri, 13 Jun 2014 17:58:05 +0200
Subject: [PATCH] gf: inverse for gf_view and gf

- correction
---
 triqs/gfs/gf.hpp | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/triqs/gfs/gf.hpp b/triqs/gfs/gf.hpp
index 9f0a738b..722b859e 100644
--- a/triqs/gfs/gf.hpp
+++ b/triqs/gfs/gf.hpp
@@ -676,12 +676,17 @@ namespace gfs {
   g.singularity() = inverse(g.singularity()); 
  }
 
- template <typename Variable, typename Opt> gf<Variable, matrix_valued, Opt> inverse(gf_view<Variable, matrix_valued, Opt> g) {
-  auto res = gf<Variable, matrix_valued, Opt>(g);
-  invert_in_place(res);
+ template <typename Variable, typename Opt> gf<Variable, matrix_valued, Opt> inverse(gf<Variable, matrix_valued, Opt> const & g) {
+  auto res = g;
+  gf_view<Variable, matrix_valued, Opt> v = res;
+  invert_in_place(v);
   return res;
  }
 
+ template <typename Variable, typename Opt, bool B> gf<Variable, matrix_valued, Opt> inverse(gf_view<Variable, matrix_valued, Opt, B> g) {
+  return inverse(gf<Variable, matrix_valued, Opt>(g));
+ }
+
  //  ---- transpose : a new gf
 
  template <typename Variable, typename Opt>