...

include/snipplib/concepts/snplib_concepts.h

@@ -3,12 +3,13 @@
 #include <concepts>
 #include <ranges>
 
-namespace snplib {
+namespace snplib
+{
 
 // type T is hashable
 template <typename T>
 concept snplib_hashable_c = requires(T t) {
-    { std::hash<T>(t) } -> std::convertible_to<size_t>;
+    { std::hash<T>{}(t) } -> std::convertible_to<size_t>;
 };
 
 template <typename T, typename CharT = char>
@@ -25,4 +26,4 @@ concept snplib_char_view_c = std::ranges::view<T> && std::same_as<std::ranges::r
 
 
 
-} // end of snplib namespace
+}  // namespace snplib