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Following up the discussion at https://github.com/llvm/llvm-project/pull/73469#discussion_r1409593911 by @nickdesaulniers. According to FreeBSD implementation (https://android.googlesource.com/platform/bionic/+/refs/heads/main/libc/upstream-freebsd/lib/libc/stdlib/hcreate.c), `hsearch` is able to handle the cases where the global table is not properly initialized. To do this, FreeBSD actually allows hash table to be dynamically resized. If the global table is uninitialized at the first call, the table will be initialized with a minimal size; hence subsequent insertion will be reasonable as the table grows automatically. This patch mimic such behaviors. More precisely, this patch introduces: 1. a full table iterator that scans each element in the table, 2. a resize routine that is automatically triggered whenever the load factor is reached where it iterates the old table and insert the entries into a new one, 3. more tests that cover the growth of the table.
libc Documentation ================== The libc documentation is written using the Sphinx documentation generator. It is currently tested with Sphinx 1.1.3. To build the documents into html configure libc with the following cmake options: * -DLLVM_ENABLE_SPHINX=ON * -DLIBC_INCLUDE_DOCS=ON After configuring libc with these options the make rule `docs-libc-html` should be available.