1 /* -*- c++ -*- */ 2 /* 3 * Copyright (C) 2009 The Android Open Source Project 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in 13 * the documentation and/or other materials provided with the 14 * distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 19 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 20 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 23 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef ANDROID_ASTL_FUNCTIONAL__ 31 #define ANDROID_ASTL_FUNCTIONAL__ 32 33 #if defined(_T) || defined(_Arg) || defined(_Arg1) || defined(_Arg2) || \ 34 defined(_Result) || defined(_Name) || defined(_Op) 35 #error "Macro(s) already defined." 36 #endif 37 38 namespace std { 39 40 template <class _Arg, class _Result> 41 struct unary_function { 42 typedef _Arg argument_type; 43 typedef _Result result_type; 44 }; 45 46 template <class _Arg1, class _Arg2, class _Result> 47 struct binary_function { 48 typedef _Arg1 first_argument_type; 49 typedef _Arg2 second_argument_type; 50 typedef _Result result_type; 51 }; 52 53 // Comparaison 54 55 #define FUNCTIONAL_BINARY_COMPARAISON(_Name, _Op) \ 56 template <typename _T> \ 57 struct _Name : public binary_function<_T, _T, bool> \ 58 { \ 59 bool operator()(const _T& left, const _T& right) const \ 60 { return left _Op right; } \ 61 }; 62 63 FUNCTIONAL_BINARY_COMPARAISON(equal_to, ==) 64 FUNCTIONAL_BINARY_COMPARAISON(not_equal_to, !=) 65 FUNCTIONAL_BINARY_COMPARAISON(greater, >) 66 FUNCTIONAL_BINARY_COMPARAISON(less, <) 67 FUNCTIONAL_BINARY_COMPARAISON(greater_equal, >=) 68 FUNCTIONAL_BINARY_COMPARAISON(less_equal, <=) 69 70 } // namespace std 71 72 #endif // ANDROID_ASTL_FUNCTIONAL__ 73
