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74 lines
2.6 KiB
74 lines
2.6 KiB
/* |
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* Copyright (C) 2014 The Android Open Source Project |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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#ifndef _BIONIC_MBSTATE_H |
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#define _BIONIC_MBSTATE_H |
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#include <wchar.h> |
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__BEGIN_DECLS |
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/* |
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* These return values are specified by POSIX for multibyte conversion |
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* functions. |
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*/ |
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#define __MB_ERR_ILLEGAL_SEQUENCE static_cast<size_t>(-1) |
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#define __MB_ERR_INCOMPLETE_SEQUENCE static_cast<size_t>(-2) |
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#define __MB_IS_ERR(rv) (rv == __MB_ERR_ILLEGAL_SEQUENCE || \ |
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rv == __MB_ERR_INCOMPLETE_SEQUENCE) |
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static inline __wur size_t mbstate_bytes_so_far(const mbstate_t* ps) { |
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return |
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(ps->__seq[2] != 0) ? 3 : |
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(ps->__seq[1] != 0) ? 2 : |
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(ps->__seq[0] != 0) ? 1 : 0; |
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} |
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static inline void mbstate_set_byte(mbstate_t* ps, int i, char byte) { |
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ps->__seq[i] = static_cast<uint8_t>(byte); |
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} |
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static inline __wur uint8_t mbstate_get_byte(const mbstate_t* ps, int n) { |
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return ps->__seq[n]; |
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} |
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static inline __wur size_t mbstate_reset_and_return_illegal(int _errno, mbstate_t* ps) { |
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errno = _errno; |
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*(reinterpret_cast<uint32_t*>(ps->__seq)) = 0; |
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return __MB_ERR_ILLEGAL_SEQUENCE; |
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} |
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static inline __wur size_t mbstate_reset_and_return(int _return, mbstate_t* ps) { |
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*(reinterpret_cast<uint32_t*>(ps->__seq)) = 0; |
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return _return; |
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} |
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__END_DECLS |
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#endif // _BIONIC_MBSTATE_H
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