22 lines · cpp
1//===-- Implementation of iscntrl------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/ctype/iscntrl.h"10 11#include "src/__support/common.h"12#include "src/__support/macros/config.h"13 14namespace LIBC_NAMESPACE_DECL {15 16LLVM_LIBC_FUNCTION(int, iscntrl, (int c)) {17 const unsigned ch = static_cast<unsigned>(c);18 return static_cast<int>(ch < 0x20 || ch == 0x7f);19}20 21} // namespace LIBC_NAMESPACE_DECL22