projects / thirdparty / gcc.git / blame
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1 | // -*- C++ -*- |
| 2 | ||
| 3 | // Copyright (C) 2005, 2006 Free Software Foundation, Inc. | |
| 4 | // | |
| 5 | // This file is part of the GNU ISO C++ Library. This library is free | |
| 6 | // software; you can redistribute it and/or modify it under the terms | |
| 7 | // of the GNU General Public License as published by the Free Software | |
| 8 | // Foundation; either version 2, or (at your option) any later | |
| 9 | // version. | |
| 10 | ||
| 11 | // This library is distributed in the hope that it will be useful, but | |
| 12 | // WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | // General Public License for more details. | |
| 15 | ||
| 16 | // You should have received a copy of the GNU General Public License | |
| 17 | // along with this library; see the file COPYING. If not, write to | |
| 18 | // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, | |
| 19 | // MA 02111-1307, USA. | |
| 20 | ||
| 21 | // As a special exception, you may use this file as part of a free | |
| 22 | // software library without restriction. Specifically, if other files | |
| 23 | // instantiate templates or use macros or inline functions from this | |
| 24 | // file, or you compile this file and link it with other files to | |
| 25 | // produce an executable, this file does not by itself cause the | |
| 26 | // resulting executable to be covered by the GNU General Public | |
| 27 | // License. This exception does not however invalidate any other | |
| 28 | // reasons why the executable file might be covered by the GNU General | |
| 29 | // Public License. | |
| 30 | ||
| 31 | // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. | |
| 32 | ||
| 33 | // Permission to use, copy, modify, sell, and distribute this software | |
| 34 | // is hereby granted without fee, provided that the above copyright | |
| 35 | // notice appears in all copies, and that both that copyright notice | |
| 36 | // and this permission notice appear in supporting documentation. None | |
| 37 | // of the above authors, nor IBM Haifa Research Laboratories, make any | |
| 38 | // representation about the suitability of this software for any | |
| 39 | // purpose. It is provided "as is" without express or implied | |
| 40 | // warranty. | |
| 41 | ||
| 42 | /** | |
| 43 | * @file sample_mean.hpp | |
| 44 | * Contains a function for calculating a sample mean | |
| 45 | */ | |
| 46 | ||
| 47 | #ifndef PB_DS_SAMPLE_MEAN_HPP | |
| 48 | #define PB_DS_SAMPLE_MEAN_HPP | |
| 49 | ||
| 50 | #include <list> | |
| 51 | #include <numeric> | |
| 52 | #include <math.h> | |
| 53 | #include <iterator> | |
| 54 | ||
| 55 | namespace pb_ds | |
| 56 | { | |
| 57 | ||
| 58 | namespace test | |
| 59 | { | |
| 60 | ||
| 61 | namespace detail | |
| 62 | { | |
| 63 | ||
| 64 | #define PB_DS_VTYPE \ | |
| 65 | typename std::iterator_traits< \ | |
| 66 | It>::value_type | |
| 67 | ||
| 68 | template<typename It> | |
| 69 | PB_DS_VTYPE | |
| 70 | sample_mean(It b, It e) | |
| 71 | { | |
| 72 | const PB_DS_VTYPE total = std::accumulate(b, e, PB_DS_VTYPE(0)); | |
| 73 | const size_t num = std::distance(b, e); | |
| 74 | ||
| 75 | return (total / num); | |
| 76 | } | |
| 77 | ||
| 78 | #undef PB_DS_VTYPE | |
| 79 | ||
| 80 | } // namespace detail | |
| 81 | ||
| 82 | } // namespace test | |
| 83 | ||
| 84 | } // namespace pb_ds | |
| 85 | ||
| 86 | #endif // #ifndef PB_DS_SAMPLE_MEAN_HPP | |
| 87 |