[all-commits] [llvm/llvm-project] 735b15: [libc] Fix strcasecmp/strncasecmp signedness and a...

[Jeff Bailey via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 735b15239c493fce6a5033776470892f30d7e00e
      https://github.com/llvm/llvm-project/commit/735b15239c493fce6a5033776470892f30d7e00e
  Author: Jeff Bailey <jbailey at raspberryginger.com>
  Date:   2026-04-17 (Fri, 17 Apr 2026)

  Changed paths:
    M libc/src/strings/strcasecmp.cpp
    M libc/src/strings/strncasecmp.cpp
    M libc/test/src/string/strcmp_test.cpp
    M libc/test/src/strings/strcasecmp_test.cpp
    M libc/test/src/strings/strncasecmp_test.cpp

  Log Message:
  -----------
  [libc] Fix strcasecmp/strncasecmp signedness and add tests (#192632)

Fixed character signedness bug in strcasecmp and strncasecmp
implementations in src/strings/ where characters > 127 were not
correctly handled.

Added LIBC_CRASH_ON_NULLPTR checks to both functions.

Enhanced unit tests in test/src/strings/ to be comprehensive without
duplicating basic case insensitivity tests.

Updated assertions in strcasecmp_test, strncasecmp_test, and strcmp_test
to check for sign instead of exact value.



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