[libc-commits] [libc] [libc] Add aligned_alloc (PR #96586)

[Paul Kirth via libc-commits]

================
@@ -261,6 +262,40 @@ class Block {
 
   constexpr Block(size_t prev_outer_size, size_t outer_size);
 
+  bool usable_space_is_aligned(size_t alignment) const {
+    return reinterpret_cast<uintptr_t>(usable_space()) % alignment == 0;
+  }
+
+  size_t extra_space_for_adjustment(size_t alignment) const {
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ilovepi wrote:

Maybe something like this communicates the intent better? There's lots of ways to phrase this, but `extra_space_for_adjustment` doesn't communicate much IMO.
```suggestion
  size_t padding_for_alignment(size_t alignment) const {
```

https://github.com/llvm/llvm-project/pull/96586