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[libc++] Define
namespace views
in its own detail header.
Discovered in the comments on D118748: we would like this namespace to exist anytime Ranges exists, regardless of whether concepts syntax is supported. Also, we'd like to fully granularize the <ranges> header, which means not putting any loose declarations at the top level. Differential Revision: https://reviews.llvm.org/D118809
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// -*- C++ -*- | ||
//===----------------------------------------------------------------------===// | ||
// | ||
// 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 | ||
// | ||
//===----------------------------------------------------------------------===// | ||
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#ifndef _LIBCPP___RANGES_VIEWS | ||
#define _LIBCPP___RANGES_VIEWS | ||
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#include <__config> | ||
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) | ||
# pragma GCC system_header | ||
#endif | ||
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_LIBCPP_BEGIN_NAMESPACE_STD | ||
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#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) | ||
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namespace ranges { | ||
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namespace views { } | ||
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} // namespace ranges | ||
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namespace views = ranges::views; | ||
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#endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) | ||
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_LIBCPP_END_NAMESPACE_STD | ||
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#endif // _LIBCPP___RANGES_VIEWS |
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15 changes: 15 additions & 0 deletions
15
libcxx/test/libcxx/diagnostics/detail.headers/ranges/views.module.verify.cpp
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//===----------------------------------------------------------------------===// | ||
// | ||
// 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 | ||
// | ||
//===----------------------------------------------------------------------===// | ||
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// REQUIRES: modules-build | ||
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// WARNING: This test was generated by 'generate_private_header_tests.py' | ||
// and should not be edited manually. | ||
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// expected-error@*:* {{use of private header from outside its module: '__ranges/views.h'}} | ||
#include <__ranges/views.h> |