conditional include <compare>

660aadcd · Maarten L. Hekkelman · 91d6adb9 · 660aadcd
Commit 660aadcd authored Jun 20, 2023 by Maarten L. Hekkelman
Hide whitespace changes
Inline Side-by-side

Showing with 4 additions and 1 deletions

include/cif++/symmetry.hpp
+4 -1

No files found.
--- a/include/cif++/symmetry.hpp
+++ b/include/cif++/symmetry.hpp
@@ -31,10 +31,13 @@
 #include "cif++/point.hpp"

 #include <array>
-#include <compare>
 #include <cstdint>
 #include <string>

+#if defined(__cpp_impl_three_way_comparison)
+#include <compare>
+#endif
+
 /// \file cif++/symmetry.hpp
 /// This file contains code to do symmetry operations based on the
 /// operations as specified in the International Tables.