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1// -*- C++ -*-2//===----------------------------------------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10export namespace std {11 using std::isalnum _LIBCPP_USING_IF_EXISTS;12 using std::isalpha _LIBCPP_USING_IF_EXISTS;13 using std::isblank _LIBCPP_USING_IF_EXISTS;14 using std::iscntrl _LIBCPP_USING_IF_EXISTS;15 using std::isdigit _LIBCPP_USING_IF_EXISTS;16 using std::isgraph _LIBCPP_USING_IF_EXISTS;17 using std::islower _LIBCPP_USING_IF_EXISTS;18 using std::isprint _LIBCPP_USING_IF_EXISTS;19 using std::ispunct _LIBCPP_USING_IF_EXISTS;20 using std::isspace _LIBCPP_USING_IF_EXISTS;21 using std::isupper _LIBCPP_USING_IF_EXISTS;22 using std::isxdigit _LIBCPP_USING_IF_EXISTS;23 using std::tolower _LIBCPP_USING_IF_EXISTS;24 using std::toupper _LIBCPP_USING_IF_EXISTS;25} // namespace std26