1 files changed, 23 insertions, 0 deletions
diff --git a/Source/Utils/WarpXUtil.cpp b/Source/Utils/WarpXUtil.cpp
index ddd3cf4b6..7340056fc 100644
--- a/Source/Utils/WarpXUtil.cpp
+++ b/Source/Utils/WarpXUtil.cpp
@@ -224,3 +224,26 @@ void AlwaysAssert(bool is_expression_true, const std::string& msg = "ERROR!")
 }
 
 }
+
+namespace WarpXUtilStr
+{
+    bool is_in(const std::vector<std::string>& vect,
+               const std::string& elem)
+    {
+        bool value = false;
+        if (std::find(vect.begin(), vect.end(), elem) != vect.end()){
+            value = true;
+        }
+        return value;
+    }
+
+    bool is_in(const std::vector<std::string>& vect,
+               const std::vector<std::string>& elems)
+    {
+        bool value = false;
+        for (auto elem : elems){
+            if (is_in(vect, elem)) value = true;
+        }
+        return value;
+    }
+}