[libc++] Avoid including shared_ptr.h in basic_ostream.h

[philnik777]

No description provided.

[llvmbot]

@llvm/pr-subscribers-libcxx

Author: Nikolas Klauser (philnik777)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/121049.diff

2 Files Affected:

• (modified) libcxx/include/__fwd/memory.h (+3)
• (modified) libcxx/include/__ostream/basic_ostream.h (+1-1)

diff --git a/libcxx/include/__fwd/memory.h b/libcxx/include/__fwd/memory.h
index b9e151855ad7d8..564000997dec6c 100644
--- a/libcxx/include/__fwd/memory.h
+++ b/libcxx/include/__fwd/memory.h
@@ -20,6 +20,9 @@ _LIBCPP_BEGIN_NAMESPACE_STD
 template <class _Tp>
 class _LIBCPP_TEMPLATE_VIS allocator;
 
+template <class _Tp>
+class _LIBCPP_TEMPLATE_VIS shared_ptr;
+
 _LIBCPP_END_NAMESPACE_STD
 
 #endif // _LIBCPP___FWD_MEMORY_H
diff --git a/libcxx/include/__ostream/basic_ostream.h b/libcxx/include/__ostream/basic_ostream.h
index 6d24171bc0d6cf..cf4d26167aebde 100644
--- a/libcxx/include/__ostream/basic_ostream.h
+++ b/libcxx/include/__ostream/basic_ostream.h
@@ -14,7 +14,7 @@
 #if _LIBCPP_HAS_LOCALIZATION
 
 #  include <__exception/operations.h>
-#  include <__memory/shared_ptr.h>
+#  include <__fwd/memory.h>
 #  include <__memory/unique_ptr.h>
 #  include <__new/exceptions.h>
 #  include <__ostream/put_character_sequence.h>