Partial refactoring of the utils directory (#3404)

* initial work to clean WarpX Utils

* remove AMRCore from Ionization tables

* progress

* refactoring of a part of the utils directory

* fix bug

* fixed bug

* fixed bug

* remove debug line accidentally slipped into the code

* remove debug line accidentally slipped into the code

* remove debug line accidentally slipped into the code

* cleaning

* fixed bug

1 files changed, 58 insertions, 0 deletions

diff --git a/Source/Utils/Algorithms/IsIn.H b/Source/Utils/Algorithms/IsIn.H
new file mode 100644
index 000000000..c9d2f477e
--- /dev/null
+++ b/Source/Utils/Algorithms/IsIn.H
@@ -0,0 +1,58 @@
+/* Copyright 2022 Andrew Myers, Luca Fedeli, Maxence Thevenet
+ * Revathi Jambunathan
+ *
+ * This file is part of WarpX.
+ *
+ * License: BSD-3-Clause-LBNL
+ */
+
+#ifndef WARPX_UTILS_ALGORITHMS_ISIN_H_
+#define WARPX_UTILS_ALGORITHMS_ISIN_H_
+
+#include <algorithm>
+#include <vector>
+
+namespace utils::algorithms
+{
+    /** \brief Returns true if an item of type TE is in a vector
+     * of TV objects (provided that TE can be converted into TV), false otherwise
+     *
+     * @tparam TV the typename of the vector elements
+     * @tparam TE the typename of the item
+     *
+     * @param vect a vector of TV objects
+     * @param elem an object of type TE
+     *
+     * @return true if elem is in vect, false otherwise
+     */
+    template <typename TV, typename TE,
+        class = typename std::enable_if<std::is_convertible<TE,TV>::value>::type>
+    bool is_in(const std::vector<TV>& vect,
+               const TE& elem)
+    {
+        return (std::find(vect.begin(), vect.end(), elem) != vect.end());
+    }
+
+
+    /** \brief Returns true if any of the items of a vector<TE> is contained
+     * in another vector<TV> (provided that TE can be converted into TV)
+     *
+     * @tparam TV the typename of the first vector elements
+     * @tparam TV the typename of the second vector elements
+     *
+     * @param vect a vector of TV objects
+     * @param elems a vector of TE objects
+     *
+     * @return true if any element of elems is in vect, false otherwise
+     */
+    template <typename TV, typename TE,
+        class = typename std::enable_if<std::is_convertible<TE,TV>::value>::type>
+    bool any_of_is_in(const std::vector<TV>& vect,
+               const std::vector<TE>& elems)
+    {
+        return std::any_of(elems.begin(), elems.end(),
+            [&](const auto elem){return is_in(vect, elem);});
+    }
+}
+
+#endif //WARPX_UTILS_ALGORITHMS_ISIN_H_