ba87515fea
Currently, the library-internal feature test macros are only defined if the feature is not available, and always have the prefix `_LIBCPP_HAS_NO_`. This patch changes that, so that they are always defined and have the prefix `_LIBCPP_HAS_` instead. This changes the canonical use of these macros to `#if _LIBCPP_HAS_FEATURE`, which means that using an undefined macro (e.g. due to a missing include) is diagnosed now. While this is rather unlikely currently, a similar change in `<__configuration/availability.h>` caught a few bugs. This also improves readability, since it removes the double-negation of `#ifndef _LIBCPP_HAS_NO_FEATURE`. The current patch only touches the macros defined in `<__config>`. If people are happy with this approach, I'll make a follow-up PR to also change the macros defined in `<__config_site>`.
56 lines
2.0 KiB
C++
56 lines
2.0 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03
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// UNSUPPORTED: no-localization
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// "support/make_string.h"
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#include "make_string.h"
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#include <cassert>
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#include "test_macros.h"
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int main(int, char**) {
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// clang-format off
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assert(MAKE_STRING(char,
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" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMN"
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"OPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~")
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== " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMN"
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"OPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~");
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#ifndef TEST_HAS_NO_WIDE_CHARACTERS
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assert(MAKE_STRING(wchar_t,
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" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMN"
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"OPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~")
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== L" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMN"
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"OPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~");
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#endif
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#if _LIBCPP_HAS_CHAR8_T
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assert(MAKE_STRING(char8_t,
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" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMN"
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"OPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~")
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== u8" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMN"
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"OPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~");
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#endif
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assert(MAKE_STRING(char16_t,
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" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMN"
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"OPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~")
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== u" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMN"
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"OPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~");
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assert(MAKE_STRING(char32_t,
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" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMN"
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"OPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~")
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== U" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMN"
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"OPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~");
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// clang-format on
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return 0;
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}
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