initial commit

.gitlab-ci.yml

+build:
+  tags:
+    - docker-image-build
+  script: "echo 'building image'" # unused but this line is required by GitLab CI

.vimrc

+syntax on
+filetype plugin on
+function FormatFile()
+        let l:lines="all"
+        py3f /usr/share/clang/clang-format-9/clang-format.py
+endfunction
+autocmd FileType c,cpp,proto,javascript,objc,java,typescript,arduino nmap <C-I> :call FormatFile()<cr>

Chi2PerDoF.h

+/*
+ * Copyright (C) 2019  CERN for the benefit of the LHCb collaboration
+ * Author: Paul Seyfert <pseyfert@cern.ch>
+ *
+ * This software is distributed under the terms of the GNU General Public
+ * Licence version 3 (GPL Version 3), copied verbatim in the file "LICENSE".
+ *
+ * In applying this licence, CERN does not waive the privileges and immunities
+ * granted to it by virtue of its status as an Intergovernmental Organization
+ * or submit itself to any jurisdiction.
+ */
+
+#pragma once
+#include "LHCbMath/SIMDWrapper.h"
+
+namespace LHCb::Rec {
+template <typename dType = SIMDWrapper::scalar::types> struct Chi2PerDoF {
+  typename dType::float_v chi2PerDoF;     
+  typename dType::int_v nDoF;             
+  [[nodiscard]] typename dType::float_v chi2() const { 
+    using float_v = typename dType::float_v;
+    return chi2PerDoF * (float_v)nDoF;
+  } 
+};
+} // namespace LHCb::Rec
+

Dockerfile

+FROM debian:testing
+
+RUN apt update && apt -y upgrade && apt install -y vim-nox clang-format-9
+
+ADD Chi2PerDoF.h /
+ADD .vimrc /root/.vimrc