llvm-project.git/libc/src/string/strcasestr.cpp, branch main Unnamed repository; edit this file 'description' to name the repository. [libc] Migrate ctype_utils to use char instead of int where applicable. (#166225) 2025-11-05T19:02:28+00:00 Alexey Samsonov vonosmas@gmail.com 2025-11-05T19:02:28+00:00 120689e46679c6db37cd9e839ec0721e80a22d4f Functions like isalpha / tolower can operate on chars internally. This allows us to get rid of unnecessary casts and open a way to creating wchar_t overloads with the same names (e.g. for isalpha), that would simplify templated code for conversion functions (see 315dfe5865962d8a3d60e21d1fffce5214fe54ef). Add the int->char converstion to public entrypoints implementation instead. We also need to introduce bounds check on the input argument values - these functions' behavior is unspecified if the argument is neither EOF nor fits in "unsigned char" range, but the tests we've had verified that they always return false for small negative values. To preserve this behavior, cover it explicitly. 
Functions like isalpha / tolower can operate on chars internally. This
allows us to get rid of unnecessary casts and open a way to creating
wchar_t overloads with the same names (e.g. for isalpha), that would
simplify templated code for conversion functions (see
315dfe5865962d8a3d60e21d1fffce5214fe54ef).

Add the int->char converstion to public entrypoints implementation
instead. We also need to introduce bounds check on the input argument
values - these functions' behavior is unspecified if the argument is
neither EOF nor fits in "unsigned char" range, but the tests we've had
verified that they always return false for small negative values. To
preserve this behavior, cover it explicitly.
 [libc] Expand usage of libc null checks. (#116262) 2025-06-04T17:08:27+00:00 Aly ElAshram 71949028+AlyElashram@users.noreply.github.com 2025-06-04T17:08:27+00:00 ff844df719d7226a46b8cb0d99aef9480cced247 Fixes #111546 --------- Co-authored-by: alyyelashram <150528548+alyyelashram@users.noreply.github.com> 
Fixes #111546

---------

Co-authored-by: alyyelashram <150528548+alyyelashram@users.noreply.github.com>
 [libc] Migrate to using LIBC_NAMESPACE_DECL for namespace declaration (#98597) 2024-07-12T16:28:41+00:00 Petr Hosek phosek@google.com 2024-07-12T16:28:41+00:00 5ff3ff33ff930e4ec49da7910612d8a41eb068cb This is a part of #97655. 
This is a part of #97655.
 Revert "[libc] Migrate to using LIBC_NAMESPACE_DECL for namespace declaration" (#98593) 2024-07-12T07:12:13+00:00 Mehdi Amini joker.eph@gmail.com 2024-07-12T07:12:13+00:00 ce9035f5bd3aa09cbd899489cdbc7f6c18acf1e3 Reverts llvm/llvm-project#98075 bots are broken 
Reverts llvm/llvm-project#98075

bots are broken
 [libc] Migrate to using LIBC_NAMESPACE_DECL for namespace declaration (#98075) 2024-07-11T19:35:22+00:00 Petr Hosek phosek@google.com 2024-07-11T19:35:22+00:00 3f30effe1bd81fa1b039218a9bfe79c3b03fafad This is a part of #97655. 
This is a part of #97655.
 [libc] Mass replace enclosing namespace (#67032) 2023-09-26T09:45:04+00:00 Guillaume Chatelet gchatelet@google.com 2023-09-26T09:45:04+00:00 b6bc9d72f65a5086f310f321e969d96e9a559e75 This is step 4 of https://discourse.llvm.org/t/rfc-customizable-namespace-to-allow-testing-the-libc-when-the-system-libc-is-also-llvms-libc/73079 
This is step 4 of
https://discourse.llvm.org/t/rfc-customizable-namespace-to-allow-testing-the-libc-when-the-system-libc-is-also-llvms-libc/73079
 [libc][NFC] Rename files 2023-07-19T09:06:29+00:00 Guillaume Chatelet gchatelet@google.com 2023-07-18T15:29:42+00:00 1f5783474f90eabb182acb7936ff11427b458f11 This patch mostly renames files so it better reflects the function they declare. Reviewed By: michaelrj Differential Revision: https://reviews.llvm.org/D155607 
This patch mostly renames files so it better reflects the function they declare.

Reviewed By: michaelrj

Differential Revision: https://reviews.llvm.org/D155607
[libc] Implement strcasestr 2023-01-25T17:58:13+00:00 Alex Brachet abrachet@google.com 2023-01-25T17:58:13+00:00 741021de32360cade7aca1e9f7368966a8a3d26a Differential Revision: https://reviews.llvm.org/D142518 
Differential Revision: https://reviews.llvm.org/D142518