[libc-commits] [PATCH] D147822: [libc] Add memmem implementation

[Caslyn Tonelli via Phabricator via libc-commits]

Caslyn created this revision.
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Introduce the `memmem` libc string function.

`memmem_implementation` performs shared logic for `strstr`,
`strcasestr`, and `memmem`; essentially reconfiguring what was the
`strstr_implementation` to support length parameters.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D147822

Files:
  libc/config/baremetal/arm/entrypoints.txt
  libc/config/darwin/arm/entrypoints.txt
  libc/config/darwin/x86_64/entrypoints.txt
  libc/config/gpu/entrypoints.txt
  libc/config/linux/aarch64/entrypoints.txt
  libc/config/linux/arm/entrypoints.txt
  libc/config/linux/riscv64/entrypoints.txt
  libc/config/linux/x86_64/entrypoints.txt
  libc/config/windows/entrypoints.txt
  libc/spec/gnu_ext.td
  libc/src/string/CMakeLists.txt
  libc/src/string/memmem.cpp
  libc/src/string/memmem.h
  libc/src/string/memory_utils/CMakeLists.txt
  libc/src/string/memory_utils/memmem_implementations.h
  libc/src/string/memory_utils/strstr_implementations.h
  libc/src/string/strcasestr.cpp
  libc/src/string/strstr.cpp
  libc/test/src/string/CMakeLists.txt
  libc/test/src/string/memmem_test.cpp
  utils/bazel/llvm-project-overlay/libc/BUILD.bazel

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