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
30 lines
744 B
C++
30 lines
744 B
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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// <ios>
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// template <class charT, class traits> class basic_ios
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// char narrow(char_type c, char dfault) const;
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// XFAIL: libcpp-has-no-wide-characters
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#include <ios>
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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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{
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const std::wios ios(0);
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assert(ios.narrow(L'c', '*') == 'c');
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assert(ios.narrow(L'\u203C', '*') == '*');
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return 0;
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}
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