| /* -*- c++ -*- */ |
| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #ifndef ANDROID_ASTL_IOS_POS_TYPES__ |
| #define ANDROID_ASTL_IOS_POS_TYPES__ |
| |
| #include <cstddef> // ptrdiff_t |
| namespace std { |
| |
| // Type use by fpos. |
| typedef long long streamoff; |
| |
| // Signed type for I/O operation counts and buffer sizes. |
| typedef ptrdiff_t streamsize; |
| |
| // In the regular STL fpos is a template which gets specialized for |
| // char and wchar and defines 2 types streampos and wstreampos. Since |
| // we don't support wchar, we just provide the final char compliant |
| // version. The methods to get/set the mbstate in fpos are not |
| // provided. |
| |
| class fpos { |
| public: |
| fpos() : mOffs(0) { } |
| fpos(streamoff offs) : mOffs(offs) { } |
| |
| // Convert to streamoff. |
| operator streamoff() const { return mOffs; } |
| |
| // Not supported: |
| // void state(mbstate_t); |
| // mbstate_t state() const; |
| |
| fpos& operator+=(streamoff offs); |
| fpos& operator-=(streamoff offs) { |
| return operator+=(-offs); |
| } |
| |
| fpos operator+(streamoff offs) const; |
| fpos operator-(streamoff offs) const; |
| |
| private: |
| streamoff mOffs; |
| }; |
| |
| inline bool |
| operator==(const fpos& lhs, const fpos& rhs) |
| { return streamoff(lhs) == streamoff(rhs); } |
| |
| inline bool |
| operator!=(const fpos& lhs, const fpos& rhs) |
| { return streamoff(lhs) != streamoff(rhs); } |
| |
| typedef fpos streampos; |
| |
| } // namespace std |
| |
| #endif |