[libc-commits] [libc] [libc][new] Add placement new functions (PR #94290)

[via libc-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libc

Author: None (PiJoules)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/94290.diff


1 Files Affected:

- (modified) libc/src/__support/CPP/new.h (+4) 


``````````diff
diff --git a/libc/src/__support/CPP/new.h b/libc/src/__support/CPP/new.h
index 6261dc1ffde6f..72187b70d7d24 100644
--- a/libc/src/__support/CPP/new.h
+++ b/libc/src/__support/CPP/new.h
@@ -74,6 +74,10 @@ LIBC_INLINE void *operator new[](size_t size, std::align_val_t align,
   return LIBC_NAMESPACE::AllocChecker::aligned_alloc(size, align, ac);
 }
 
+LIBC_INLINE void *operator new(size_t, void *p) { return p; }
+
+LIBC_INLINE void *operator new[](size_t, void *p) { return p; }
+
 // The ideal situation would be to define the various flavors of operator delete
 // inlinelike we do with operator new above. However, since we need operator
 // delete prototypes to match those specified by the C++ standard, we cannot

``````````

</details>


https://github.com/llvm/llvm-project/pull/94290