From ac5b74c57addfd2b82c9a30d017c263b6d1cc911 Mon Sep 17 00:00:00 2001
From: Christian Zimmermann <christian.zimmermann@ur.de>
Date: Mon, 7 Dec 2020 13:46:01 +0100
Subject: [PATCH] arith + hl_ops: negate

---
 src/include/arith.h | 13 +++++++++++++
 src/lib/mk_hl_op.sh | 13 +++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/src/include/arith.h b/src/include/arith.h
index fc8a712..db34d75 100644
--- a/src/include/arith.h
+++ b/src/include/arith.h
@@ -142,6 +142,19 @@ namespace MultiArrayTools
 
     };
 
+    template <typename T>
+    struct negate : public StaticFunctionBase<T, negate<T>, T>
+    {
+	static constexpr bool FISSTATIC = true;
+	using StaticFunctionBase<T, negate<T>, T>::apply;
+	
+	static inline T apply(T a)
+	{
+	    return -a;
+	}
+
+    };
+
     template <typename T>
     using plus = plusx<T,T>;
 
diff --git a/src/lib/mk_hl_op.sh b/src/lib/mk_hl_op.sh
index 27f6af5..f904f85 100755
--- a/src/lib/mk_hl_op.sh
+++ b/src/lib/mk_hl_op.sh
@@ -33,3 +33,16 @@ for fff in plus minus multiplies divides ; do
     echo "    template class HighLevelOp<OpD,${fff}x<double,double>,2>;" >> ${file}
     echo "}" >> ${file}
 done
+
+for fff in negate ; do
+    file=hl_ops/${fff}.cc
+    test -f ${file} && rm -f ${file}
+    echo "#include \"multi_array_header.h\"" >> ${file}
+    echo "#include \"high_level_operation.h\"" >> ${file}
+    echo "" >> ${file}
+    echo "namespace MultiArrayTools" >> ${file}
+    echo "{" >> ${file}
+    echo "    template class HighLevelOp<OpCD,${fff}<double>,1>;" >> ${file}
+    echo "    template class HighLevelOp<OpD,${fff}<double>,1>;" >> ${file}
+    echo "}" >> ${file}
+done