f4c1258d56
Some embedded platforms do not wish to support the C library functionality for handling wchar_t because they have no use for it. It makes sense for libc++ to work properly on those platforms, so this commit adds a carve-out of functionality for wchar_t. Unfortunately, unlike some other carve-outs (e.g. random device), this patch touches several parts of the library. However, despite the wide impact of this patch, I still think it is important to support this configuration since it makes it much simpler to port libc++ to some embedded platforms. Differential Revision: https://reviews.llvm.org/D111265
66 lines
1.5 KiB
C++
66 lines
1.5 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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// REQUIRES: locale.en_US.UTF-8
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// <streambuf>
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// template <class charT, class traits = char_traits<charT> >
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// class basic_streambuf;
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// basic_streambuf();
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#include <streambuf>
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#include <cassert>
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#include "test_macros.h"
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#include "platform_support.h" // locale name macros
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template <class CharT>
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struct test
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: public std::basic_streambuf<CharT>
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{
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test()
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{
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assert(this->eback() == 0);
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assert(this->gptr() == 0);
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assert(this->egptr() == 0);
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assert(this->pbase() == 0);
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assert(this->pptr() == 0);
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assert(this->epptr() == 0);
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}
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};
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int main(int, char**)
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{
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{
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test<char> t;
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assert(t.getloc().name() == "C");
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}
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#ifndef TEST_HAS_NO_WIDE_CHARACTERS
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{
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test<wchar_t> t;
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assert(t.getloc().name() == "C");
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}
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#endif
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std::locale::global(std::locale(LOCALE_en_US_UTF_8));
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{
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test<char> t;
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assert(t.getloc().name() == LOCALE_en_US_UTF_8);
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}
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#ifndef TEST_HAS_NO_WIDE_CHARACTERS
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{
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test<wchar_t> t;
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assert(t.getloc().name() == LOCALE_en_US_UTF_8);
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}
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#endif
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return 0;
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}
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