From 53579deb2d551752b503b7b76ac04885ec354470 Mon Sep 17 00:00:00 2001
From: Marc Glisse <marc.glisse@inria.fr>
Date: Wed, 26 Feb 2020 23:19:34 +0100
Subject: Bug in gcc-8

---
 src/python/gudhi/clustering/_tomato.cc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'src/python/gudhi/clustering')

diff --git a/src/python/gudhi/clustering/_tomato.cc b/src/python/gudhi/clustering/_tomato.cc
index 1c896174..746c4254 100644
--- a/src/python/gudhi/clustering/_tomato.cc
+++ b/src/python/gudhi/clustering/_tomato.cc
@@ -18,8 +18,11 @@ namespace py=pybind11;
 
 template<class T, class=std::enable_if_t<std::is_integral<T>::value>>
 int getint(int i){return i;}
-template<class T, class=decltype(std::declval<T>().template cast<int>())>
-int getint(T i){return i.template cast<int>();}
+// Gcc-8 has a bug that breaks this version, fixed in gcc-9
+// template<class T, class=decltype(std::declval<T>().template cast<int>())>
+// int getint(T i){return i.template cast<int>();}
+template<class T>
+auto getint(T i)->decltype(i.template cast<int>()){return i.template cast<int>();}
 
 // Raw clusters are clusters obtained through single-linkage, no merging.
 
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