libstdc++: Define std::__is_constant_evaluated() for internal use

[thirdparty/gcc.git] / libstdc++-v3 / include / std / array

diff --git a/libstdc++-v3/include/std/array b/libstdc++-v3/include/std/array
index 413f8e2be01f1653de04e59fe9f5d8738d05038c..e632de15aff528d700c307822fc5c0085390035d 100644 (file)
--- a/libstdc++-v3/include/std/array
+++ b/libstdc++-v3/include/std/array
@@ -310,14 +310,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     constexpr __detail::__synth3way_t<_Tp>
     operator<=>(const array<_Tp, _Nm>& __a, const array<_Tp, _Nm>& __b)
     {
-#ifdef __cpp_lib_is_constant_evaluated
       if constexpr (_Nm && __is_memcmp_ordered<_Tp>::__value)
-       if (!std::is_constant_evaluated())
+       if (!std::__is_constant_evaluated())
          {
            constexpr size_t __n = _Nm * sizeof(_Tp);
            return __builtin_memcmp(__a.data(), __b.data(), __n) <=> 0;
          }
-#endif
 
       for (size_t __i = 0; __i < _Nm; ++__i)
        {