| //===-- Implementation of iscntrl------------------------------------------===// |
| // |
| // 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/iscntrl.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, iscntrl, (int c)) { |
| const unsigned char ch = static_cast<unsigned char>(c); |
| return static_cast<int>(ch < 0x20 || ch == 0x7f); |
| } |
| |
| } // namespace __llvm_libc |
