array: Only expose operator<=> if <compare> is available

managarm · Feb 9, 2024 · 09cfc9d · 09cfc9d
1 parent 1e053d7
commit 09cfc9d
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/include/frg/array.hpp b/include/frg/array.hpp
@@ -6,6 +6,10 @@
 #include <type_traits>
 #include <tuple>
 
+#if __has_include(<compare>)
+#	include <compare>
+#endif
+
 namespace frg {
 
 template<class T, size_t N>
@@ -88,7 +92,10 @@ struct array {
 	}
 
 	bool operator==(const array &other) const = default;
+
+#if __has_include(<compare>)
 	auto operator<=>(const array &other) const = default;
+#endif
 };
 
 namespace details {