[libc-commits] [libc] [libc] add shrink in-place support for reallocations (PR #200272)

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github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,h -- libc/src/__support/block.h libc/src/__support/freelist_heap.h libc/src/__support/freestore.h libc/test/src/__support/freelist_heap_test.cpp --diff_from_common_commit
``````````

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changing `origin/main` to the base branch/commit you want to compare against.
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View the diff from clang-format here.
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``````````diff
diff --git a/libc/src/__support/block.h b/libc/src/__support/block.h
index 399a4db21..1da4fd804 100644
--- a/libc/src/__support/block.h
+++ b/libc/src/__support/block.h
@@ -424,7 +424,8 @@ Block::BlockInfo Block::allocate(Block *block, size_t alignment, size_t size,
   }
 
   // Now get a block for the requested size.
-  if (optional<Block *> next = info.block->split(size, MIN_ALIGN, min_split_size))
+  if (optional<Block *> next =
+          info.block->split(size, MIN_ALIGN, min_split_size))
     info.next = *next;
 
   return info;

``````````

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https://github.com/llvm/llvm-project/pull/200272