@ -726,7 +726,7 @@ class btree_node {
#ifndef _MSC_VER
#pragma GCC diagnostic push
#if (__GNUC__ >= 9)
#if (__GNUC__ >= 9) || (defined __clang_major__ && __clang_major__ >= 10)
#pragma GCC diagnostic ignored "-Wdeprecated-copy"
#endif
#endif /* _MSC_VER */