[libc-commits] [PATCH] D85103: [libc] Adds strspn implementation.

[Chris Gyurgyik via Phabricator via libc-commits]

cgyurgyik created this revision.
cgyurgyik added reviewers: sivachandra, abrachet.
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[libc] Adds strspn implementation. To get O(max(M,N)) complexity (where M, N are the string lengths), one can use a table to first store the characters of the string to be matched against, and then iterate over the source string to determine if it contains any.

This approach takes it a step further, and reduces the table's size by using bit manipulation techniques.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D85103

Files:
  libc/config/linux/aarch64/entrypoints.txt
  libc/config/linux/x86_64/entrypoints.txt
  libc/src/string/CMakeLists.txt
  libc/src/string/strspn.cpp
  libc/src/string/strspn.h
  libc/test/src/string/CMakeLists.txt
  libc/test/src/string/strspn_test.cpp

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