1 // Copyright 2020 The Pigweed Authors
3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not
4 // use this file except in compliance with the License. You may obtain a copy of
7 // https://www.apache.org/licenses/LICENSE-2.0
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12 // License for the specific language governing permissions and limitations under
15 // This is a fake version of Clang / libc++'s <__config> header. The <__config>
16 // header provides various _LIBCPP defines used internally by libc++.
18 // In particular, pw_polyfill and pw_minimal_cpp_stdlib need the macros that
19 // provide the namespace to use for standard library definitions. This header
20 // provides _LIBCPP_BEGIN_NAMESPACE_STD and _LIBCPP_END_NAMESPACE_STD.
23 #define _LIBCPP_BEGIN_NAMESPACE_STD \
25 inline namespace __pw_minimal_cpp_stdlib {
27 #define _LIBCPP_END_NAMESPACE_STD \