AK: Add hash traits for floating-point primitives

This allows us to use float and double as hash keys.

1 files changed, 14 insertions, 0 deletions

diff --git a/AK/Traits.h b/AK/Traits.h
index fc67ce4b9d..539174b7d0 100644
--- a/AK/Traits.h
+++ b/AK/Traits.h
@@ -40,6 +40,20 @@ requires(IsIntegral<T>) struct Traits<T> : public GenericTraits<T> {
     }
 };
 
+#ifndef KERNEL
+template<typename T>
+requires(IsFloatingPoint<T>) struct Traits<T> : public GenericTraits<T> {
+    static constexpr bool is_trivial() { return true; }
+    static constexpr unsigned hash(T value)
+    {
+        if constexpr (sizeof(T) < 8)
+            return int_hash(bit_cast<u32>(value));
+        else
+            return u64_hash(bit_cast<u64>(value));
+    }
+};
+#endif
+
 template<typename T>
 requires(IsPointer<T> && !Detail::IsPointerOfType<char, T>) struct Traits<T> : public GenericTraits<T> {
     static unsigned hash(T p) { return ptr_hash((FlatPtr)p); }