| //===-- Implementation of isalpha------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "src/ctype/isalpha.h" |
| |
| #include "src/__support/common.h" |
| |
| namespace __llvm_libc { |
| |
| // TODO: Currently restricted to default locale. |
| // These should be extended using locale information. |
| int LLVM_LIBC_ENTRYPOINT(isalpha)(int c) { |
| const unsigned ch = c; |
| return (ch | 32) - 'a' < 26; |
| } |
| |
| } // namespace __llvm_libc |
