| /* -*- c++ -*- */ |
| /* |
| * Copyright (C) 2009 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_FUNCTIONAL__ |
| #define ANDROID_ASTL_FUNCTIONAL__ |
| |
| #if defined(_T) || defined(_Arg) || defined(_Arg1) || defined(_Arg2) || \ |
| defined(_Result) || defined(_Name) || defined(_Op) |
| #error "Macro(s) already defined." |
| #endif |
| |
| namespace std { |
| |
| template <class _Arg, class _Result> |
| struct unary_function { |
| typedef _Arg argument_type; |
| typedef _Result result_type; |
| }; |
| |
| template <class _Arg1, class _Arg2, class _Result> |
| struct binary_function { |
| typedef _Arg1 first_argument_type; |
| typedef _Arg2 second_argument_type; |
| typedef _Result result_type; |
| }; |
| |
| // Comparaison |
| |
| #define FUNCTIONAL_BINARY_COMPARAISON(_Name, _Op) \ |
| template <typename _T> \ |
| struct _Name : public binary_function<_T, _T, bool> \ |
| { \ |
| bool operator()(const _T& left, const _T& right) const \ |
| { return left _Op right; } \ |
| }; |
| |
| FUNCTIONAL_BINARY_COMPARAISON(equal_to, ==) |
| FUNCTIONAL_BINARY_COMPARAISON(not_equal_to, !=) |
| FUNCTIONAL_BINARY_COMPARAISON(greater, >) |
| FUNCTIONAL_BINARY_COMPARAISON(less, <) |
| FUNCTIONAL_BINARY_COMPARAISON(greater_equal, >=) |
| FUNCTIONAL_BINARY_COMPARAISON(less_equal, <=) |
| |
| } // namespace std |
| |
| #endif // ANDROID_ASTL_FUNCTIONAL__ |