libstdc++: Add feature test macro for <experimental/scope>

libstdc++-v3/ChangeLog: * include/experimental/scope (__cpp_lib_experimental_scope): Define. * testsuite/experimental/scopeguard/uniqueres.cc: Check macro.
2022-08-05 15:17:20 +01:00
parent 29fc5075d7
commit 58a644cfde
2 changed files with 8 additions and 0 deletions
@@ -43,6 +43,8 @@ namespace std _GLIBCXX_VISIBILITY(default)
 _GLIBCXX_BEGIN_NAMESPACE_VERSION
 namespace experimental::inline fundamentals_v3
 {
+#define __cpp_lib_experimental_scope 201902
+
  template<typename _Tp, typename _Up>
    concept __not_same_as = !same_as<_Tp, _Up>;

@@ -4,6 +4,12 @@
 #include <experimental/scope>
 #include <testsuite_hooks.h>

+#ifndef __cpp_lib_experimental_scope
+# error Feature-test macro is not defined.
+#elif __cpp_lib_experimental_scope < 201902
+# error Feature-test macro has bad value.
+#endif
+
 using std::experimental::unique_resource;

 void