| //===-- Implementation of tolower------------------------------------------===// |
| // |
| // 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/tolower.h" |
| #include "src/__support/ctype_utils.h" |
| |
| #include "src/__support/common.h" |
| |
| namespace __llvm_libc { |
| |
| // TODO: Currently restricted to default locale. |
| // These should be extended using locale information. |
| LLVM_LIBC_FUNCTION(int, tolower, (int c)) { |
| if (internal::isupper(c)) |
| return c + ('a' - 'A'); |
| return c; |
| } |
| |
| } // namespace __llvm_libc |
