The C and C++ Include Header Files
/usr/include/c++/11/ext/pb_ds/detail/resize_policy/hash_exponential_size_policy_imp.hpp
$ cat -n /usr/include/c++/11/ext/pb_ds/detail/resize_policy/hash_exponential_size_policy_imp.hpp 1 // -*- C++ -*- 2 3 // Copyright (C) 2005-2021 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 3, 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 // Under Section 7 of GPL version 3, you are granted additional 17 // permissions described in the GCC Runtime Library Exception, version 18 // 3.1, as published by the Free Software Foundation. 19 20 // You should have received a copy of the GNU General Public License and 21 // a copy of the GCC Runtime Library Exception along with this program; 22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 //
. 24 25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 26 27 // Permission to use, copy, modify, sell, and distribute this software 28 // is hereby granted without fee, provided that the above copyright 29 // notice appears in all copies, and that both that copyright notice 30 // and this permission notice appear in supporting documentation. None 31 // of the above authors, nor IBM Haifa Research Laboratories, make any 32 // representation about the suitability of this software for any 33 // purpose. It is provided "as is" without express or implied 34 // warranty. 35 36 /** 37 * @file hash_exponential_size_policy_imp.hpp 38 * Contains a resize size policy implementation. 39 */ 40 41 #ifdef PB_DS_CLASS_C_DEC 42 43 PB_DS_CLASS_T_DEC 44 PB_DS_CLASS_C_DEC:: 45 hash_exponential_size_policy(size_type start_size, size_type grow_factor) : 46 m_start_size(start_size), 47 m_grow_factor(grow_factor) 48 { } 49 50 PB_DS_CLASS_T_DEC 51 void 52 PB_DS_CLASS_C_DEC:: 53 swap(PB_DS_CLASS_C_DEC& other) 54 { 55 std::swap(m_start_size, other.m_start_size); 56 std::swap(m_grow_factor, other.m_grow_factor); 57 } 58 59 PB_DS_CLASS_T_DEC 60 typename PB_DS_CLASS_C_DEC::size_type 61 PB_DS_CLASS_C_DEC:: 62 get_nearest_larger_size(size_type size) const 63 { 64 size_type ret = m_start_size; 65 while (ret <= size) 66 { 67 const size_type next_ret = ret* m_grow_factor; 68 if (next_ret < ret) 69 __throw_insert_error(); 70 ret = next_ret; 71 } 72 return ret; 73 } 74 75 PB_DS_CLASS_T_DEC 76 typename PB_DS_CLASS_C_DEC::size_type 77 PB_DS_CLASS_C_DEC:: 78 get_nearest_smaller_size(size_type size) const 79 { 80 size_type ret = m_start_size; 81 while (true) 82 { 83 const size_type next_ret = ret* m_grow_factor; 84 if (next_ret < ret) 85 __throw_resize_error(); 86 if (next_ret >= size) 87 return (ret); 88 ret = next_ret; 89 } 90 return ret; 91 } 92 93 #endif
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