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-rw-r--r--libstdc++-v3/include/std/utility4
1 files changed, 4 insertions, 0 deletions
diff --git a/libstdc++-v3/include/std/utility b/libstdc++-v3/include/std/utility
index fb61835..acc47d6 100644
--- a/libstdc++-v3/include/std/utility
+++ b/libstdc++-v3/include/std/utility
@@ -86,6 +86,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
#if __cplusplus >= 201402L
#define __cpp_lib_exchange_function 201304L
+#if __cplusplus > 201703L
+# define __cpp_lib_constexpr_algorithms 201806L
+#endif
+
/// Assign @p __new_val to @p __obj and return its previous value.
template <typename _Tp, typename _Up = _Tp>
_GLIBCXX20_CONSTEXPR