9fc353ee36
* Add FILE type declaration, as it should be presented in `<wchar.h>`, as well as in `<stdio.h>` * Fix argument type in `wcsrtombs` / `wcsnrtombs` function - it should be restrict pointer to `mbstate_t`. Add restrict qualifier to internal implementation as well. This brings us closer to being able to build libcxx with wide-character support against llvm-libc headers.
41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
//===-- Implementation of wcsrtombs ---------------------------------------===//
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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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#include "src/wchar/wcsrtombs.h"
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#include "hdr/types/char32_t.h"
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#include "hdr/types/mbstate_t.h"
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#include "hdr/types/size_t.h"
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#include "hdr/types/wchar_t.h"
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#include "src/__support/common.h"
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#include "src/__support/libc_errno.h"
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#include "src/__support/macros/config.h"
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#include "src/__support/wchar/mbstate.h"
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#include "src/__support/wchar/wcsnrtombs.h"
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namespace LIBC_NAMESPACE_DECL {
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LLVM_LIBC_FUNCTION(size_t, wcsrtombs,
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(char *__restrict s, const wchar_t **__restrict pwcs,
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size_t n, mbstate_t *__restrict ps)) {
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LIBC_CRASH_ON_NULLPTR(pwcs);
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static internal::mbstate internal_mbstate;
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auto result = internal::wcsnrtombs(
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s, pwcs, SIZE_MAX, n,
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ps == nullptr ? &internal_mbstate
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: reinterpret_cast<internal::mbstate *>(ps));
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if (!result.has_value()) {
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libc_errno = result.error();
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return -1;
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}
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return result.value();
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}
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} // namespace LIBC_NAMESPACE_DECL
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