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-rw-r--r--libstdc++-v3/include/std/set2
1 files changed, 1 insertions, 1 deletions
diff --git a/libstdc++-v3/include/std/set b/libstdc++-v3/include/std/set
index 45fed14c51e..551c77727f1 100644
--- a/libstdc++-v3/include/std/set
+++ b/libstdc++-v3/include/std/set
@@ -68,12 +68,12 @@
#endif
#if __cplusplus >= 201703L
+#include <bits/memory_resource.h>
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
namespace pmr
{
- template<typename _Tp> class polymorphic_allocator;
template<typename _Key, typename _Cmp = std::less<_Key>>
using set = std::set<_Key, _Cmp, polymorphic_allocator<_Key>>;
template<typename _Key, typename _Cmp = std::less<_Key>>