re PR libstdc++/42408 (Missing templatized seed())
2010-02-01 Paolo Carlini <paolo.carlini@oracle.com> PR libstdc++/42408 * include/bits/random.h (linear_congruential_engine<>:: linear_congruential_engine(seed_seq&), linear_congruential_engine<>::seed(seed_seq&), mersenne_twister<>::mersenne_twister(seed_seq&), mersenne_twister<>::seed(seed_seq&), subtract_with_carry_engine<>::subtract_with_carry_engine(seed_seq&), subtract_with_carry_engine<>::seed(seed_seq&), discard_block_engine<>::discard_block_engine(seed_seq&), discard_block_engine<>::seed(seed_seq&), independent_bits_engine<>::independent_bits_engine(seed_seq&), independent_bits_engine<>::seed(seed_seq&), shuffle_order_engine<>::shuffle_order_engine(seed_seq&), shuffle_order_engine<>::seed(seed_seq&)): Templatize. * include/bits/random.tcc: Adjust. * testsuite/26_numerics/random/subtract_with_carry_engine/cons/ seed_seq.cc: New. * testsuite/26_numerics/random/mersenne_twister_engine/cons/ seed_seq.cc: Likewise. * testsuite/26_numerics/random/linear_congruential_engine/ cons/seed_seq.cc: Likewise. From-SVN: r156430
This commit is contained in:
Paolo Carlini
Paolo Carlini
parent
87d05b4491
commit
15ecdcc6fc
6 changed files with 299 additions and 121 deletions
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@ -1,3 +1,27 @@
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2010-02-01 Paolo Carlini <paolo.carlini@oracle.com>
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PR libstdc++/42408
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* include/bits/random.h (linear_congruential_engine<>::
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linear_congruential_engine(seed_seq&),
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linear_congruential_engine<>::seed(seed_seq&),
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mersenne_twister<>::mersenne_twister(seed_seq&),
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mersenne_twister<>::seed(seed_seq&),
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subtract_with_carry_engine<>::subtract_with_carry_engine(seed_seq&),
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subtract_with_carry_engine<>::seed(seed_seq&),
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discard_block_engine<>::discard_block_engine(seed_seq&),
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discard_block_engine<>::seed(seed_seq&),
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independent_bits_engine<>::independent_bits_engine(seed_seq&),
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independent_bits_engine<>::seed(seed_seq&),
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shuffle_order_engine<>::shuffle_order_engine(seed_seq&),
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shuffle_order_engine<>::seed(seed_seq&)): Templatize.
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* include/bits/random.tcc: Adjust.
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* testsuite/26_numerics/random/subtract_with_carry_engine/cons/
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seed_seq.cc: New.
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* testsuite/26_numerics/random/mersenne_twister_engine/cons/
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seed_seq.cc: Likewise.
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* testsuite/26_numerics/random/linear_congruential_engine/
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cons/seed_seq.cc: Likewise.
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2010-02-01 Paolo Carlini <paolo.carlini@oracle.com>
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* include/bits/forward_list.h (forward_list<>::resize(size_type),
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@ -1,6 +1,6 @@
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// random number generation -*- C++ -*-
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// Copyright (C) 2009 Free Software Foundation, Inc.
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// Copyright (C) 2009, 2010 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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@ -50,8 +50,6 @@ namespace std
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_RealType
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generate_canonical(_UniformRandomNumberGenerator& __g);
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class seed_seq;
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/*
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* Implementation-space details.
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*/
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@ -179,7 +177,7 @@ namespace std
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*/
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explicit
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linear_congruential_engine(result_type __s = default_seed)
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{ this->seed(__s); }
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{ seed(__s); }
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/**
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* @brief Constructs a %linear_congruential_engine random number
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@ -187,9 +185,11 @@ namespace std
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*
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* @param __q the seed sequence.
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*/
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explicit
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linear_congruential_engine(seed_seq& __q)
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{ this->seed(__q); }
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template<typename _Sseq, typename
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= typename std::enable_if<std::is_class<_Sseq>::value>::type>
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explicit
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linear_congruential_engine(_Sseq& __q)
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{ seed<_Sseq>(__q); }
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/**
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* @brief Reseeds the %linear_congruential_engine random number generator
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@ -207,8 +207,10 @@ namespace std
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*
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* @param __q the seed sequence.
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*/
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void
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seed(seed_seq& __q);
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template<typename _Sseq, typename
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= typename std::enable_if<std::is_class<_Sseq>::value>::type>
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void
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seed(_Sseq& __q);
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/**
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* @brief Gets the smallest possible value in the output range.
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@ -398,15 +400,19 @@ namespace std
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*
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* @param __q the seed sequence.
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*/
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explicit
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mersenne_twister_engine(seed_seq& __q)
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{ seed(__q); }
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template<typename _Sseq, typename
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= typename std::enable_if<std::is_class<_Sseq>::value>::type>
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explicit
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mersenne_twister_engine(_Sseq& __q)
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{ seed<_Sseq>(__q); }
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void
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seed(result_type __sd = default_seed);
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void
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seed(seed_seq& __q);
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template<typename _Sseq, typename
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= typename std::enable_if<std::is_class<_Sseq>::value>::type>
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void
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seed(_Sseq& __q);
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/**
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* @brief Gets the smallest possible value in the output range.
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@ -557,7 +563,7 @@ namespace std
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*/
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explicit
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subtract_with_carry_engine(result_type __sd = default_seed)
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{ this->seed(__sd); }
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{ seed(__sd); }
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/**
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* @brief Constructs a %subtract_with_carry_engine random number engine
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@ -565,9 +571,11 @@ namespace std
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*
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* @param __q the seed sequence.
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*/
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explicit
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subtract_with_carry_engine(seed_seq& __q)
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{ this->seed(__q); }
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template<typename _Sseq, typename
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= typename std::enable_if<std::is_class<_Sseq>::value>::type>
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explicit
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subtract_with_carry_engine(_Sseq& __q)
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{ seed<_Sseq>(__q); }
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/**
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* @brief Seeds the initial state @f$ x_0 @f$ of the random number
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@ -588,8 +596,10 @@ namespace std
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* @brief Seeds the initial state @f$ x_0 @f$ of the
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* % subtract_with_carry_engine random number generator.
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*/
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void
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seed(seed_seq& __q);
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template<typename _Sseq, typename
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= typename std::enable_if<std::is_class<_Sseq>::value>::type>
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void
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seed(_Sseq& __q);
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/**
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* @brief Gets the inclusive minimum value of the range of random
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@ -670,7 +680,8 @@ namespace std
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* @p __is.
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*
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* @param __is An input stream.
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* @param __x A % subtract_with_carry_engine random number generator engine.
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* @param __x A % subtract_with_carry_engine random number generator
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* engine.
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*
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* @returns The input stream with the state of @p __x extracted or in
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* an error state.
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@ -751,10 +762,14 @@ namespace std
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*
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* @param __q A seed sequence.
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*/
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explicit
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discard_block_engine(seed_seq& __q)
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: _M_b(__q), _M_n(0)
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{ }
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template<typename _Sseq, typename
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= typename std::enable_if<std::is_class<_Sseq>::value
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&& !std::is_same<_Sseq, _RandomNumberEngine>
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::value>::type>
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explicit
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discard_block_engine(_Sseq& __q)
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: _M_b(__q), _M_n(0)
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{ }
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/**
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* @brief Reseeds the %discard_block_engine object with the default
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@ -783,12 +798,14 @@ namespace std
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* sequence.
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* @param __q A seed generator function.
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*/
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void
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seed(seed_seq& __q)
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{
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_M_b.seed(__q);
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_M_n = 0;
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}
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template<typename _Sseq, typename
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= typename std::enable_if<std::is_class<_Sseq>::value>::type>
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void
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seed(_Sseq& __q)
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{
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_M_b.seed<_Sseq>(__q);
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_M_n = 0;
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}
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/**
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* @brief Gets a const reference to the underlying generator engine
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@ -949,10 +966,14 @@ namespace std
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*
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* @param __q A seed sequence.
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*/
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explicit
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independent_bits_engine(seed_seq& __q)
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: _M_b(__q)
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{ }
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template<typename _Sseq, typename
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= typename std::enable_if<std::is_class<_Sseq>::value
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&& !std::is_same<_Sseq, _RandomNumberEngine>
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::value>::type>
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explicit
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independent_bits_engine(_Sseq& __q)
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: _M_b(__q)
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{ }
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/**
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* @brief Reseeds the %independent_bits_engine object with the default
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@ -975,9 +996,11 @@ namespace std
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* seed sequence.
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* @param __q A seed generator function.
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*/
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void
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seed(seed_seq& __q)
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{ _M_b.seed(__q); }
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template<typename _Sseq, typename
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= typename std::enable_if<std::is_class<_Sseq>::value>::type>
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void
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seed(_Sseq& __q)
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{ _M_b.seed<_Sseq>(__q); }
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/**
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* @brief Gets a const reference to the underlying generator engine
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@ -1150,10 +1173,14 @@ namespace std
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*
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* @param __q A seed sequence.
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*/
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explicit
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shuffle_order_engine(seed_seq& __q)
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: _M_b(__q)
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{ _M_initialize(); }
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template<typename _Sseq, typename
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= typename std::enable_if<std::is_class<_Sseq>::value
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&& !std::is_same<_Sseq, _RandomNumberEngine>
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::value>::type>
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explicit
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shuffle_order_engine(_Sseq& __q)
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: _M_b(__q)
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{ _M_initialize(); }
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/**
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* @brief Reseeds the %shuffle_order_engine object with the default seed
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@ -1182,12 +1209,14 @@ namespace std
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* sequence.
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* @param __q A seed generator function.
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*/
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void
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seed(seed_seq& __q)
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{
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_M_b.seed(__q);
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_M_initialize();
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}
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template<typename _Sseq, typename
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= typename std::enable_if<std::is_class<_Sseq>::value>::type>
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void
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seed(_Sseq& __q)
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{
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_M_b.seed<_Sseq>(__q);
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_M_initialize();
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}
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/**
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* Gets a const reference to the underlying generator engine object.
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@ -1,6 +1,6 @@
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// random number generation (out of line) -*- C++ -*-
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// Copyright (C) 2009 Free Software Foundation, Inc.
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// Copyright (C) 2009, 2010 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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@ -126,24 +126,25 @@ namespace std
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* Seeds the LCR engine with a value generated by @p __q.
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*/
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template<typename _UIntType, _UIntType __a, _UIntType __c, _UIntType __m>
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void
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linear_congruential_engine<_UIntType, __a, __c, __m>::
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seed(seed_seq& __q)
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{
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const _UIntType __k0 = __m == 0 ? std::numeric_limits<_UIntType>::digits
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: std::__lg(__m);
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const _UIntType __k = (__k0 + 31) / 32;
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uint_least32_t __arr[__k + 3];
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__q.generate(__arr + 0, __arr + __k + 3);
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_UIntType __factor = 1u;
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_UIntType __sum = 0u;
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for (size_t __j = 0; __j < __k; ++__j)
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{
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__sum += __arr[__j + 3] * __factor;
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__factor *= __detail::_Shift<_UIntType, 32>::__value;
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}
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seed(__sum);
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}
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template<typename _Sseq, typename>
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void
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linear_congruential_engine<_UIntType, __a, __c, __m>::
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seed(_Sseq& __q)
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{
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const _UIntType __k0 = __m == 0 ? std::numeric_limits<_UIntType>::digits
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: std::__lg(__m);
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const _UIntType __k = (__k0 + 31) / 32;
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uint_least32_t __arr[__k + 3];
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__q.generate(__arr + 0, __arr + __k + 3);
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_UIntType __factor = 1u;
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_UIntType __sum = 0u;
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for (size_t __j = 0; __j < __k; ++__j)
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{
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__sum += __arr[__j + 3] * __factor;
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__factor *= __detail::_Shift<_UIntType, 32>::__value;
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}
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seed(__sum);
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}
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template<typename _UIntType, _UIntType __a, _UIntType __c, _UIntType __m,
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typename _CharT, typename _Traits>
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@ -343,43 +344,44 @@ namespace std
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_UIntType __a, size_t __u, _UIntType __d, size_t __s,
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_UIntType __b, size_t __t, _UIntType __c, size_t __l,
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_UIntType __f>
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void
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d,
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template<typename _Sseq, typename>
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void
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mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d,
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__s, __b, __t, __c, __l, __f>::
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seed(seed_seq& __q)
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{
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const _UIntType __upper_mask = (~_UIntType()) << __r;
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const size_t __k = (__w + 31) / 32;
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uint_least32_t __arr[__n * __k];
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__q.generate(__arr + 0, __arr + __n * __k);
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seed(_Sseq& __q)
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{
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const _UIntType __upper_mask = (~_UIntType()) << __r;
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const size_t __k = (__w + 31) / 32;
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uint_least32_t __arr[__n * __k];
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__q.generate(__arr + 0, __arr + __n * __k);
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bool __zero = true;
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for (size_t __i = 0; __i < state_size; ++__i)
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{
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_UIntType __factor = 1u;
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_UIntType __sum = 0u;
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for (size_t __j = 0; __j < __k; ++__j)
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{
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__sum += __arr[__k * __i + __j] * __factor;
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__factor *= __detail::_Shift<_UIntType, 32>::__value;
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}
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_M_x[__i] = __detail::__mod<_UIntType,
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__detail::_Shift<_UIntType, __w>::__value>(__sum);
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bool __zero = true;
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for (size_t __i = 0; __i < state_size; ++__i)
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{
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_UIntType __factor = 1u;
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_UIntType __sum = 0u;
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for (size_t __j = 0; __j < __k; ++__j)
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{
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__sum += __arr[__k * __i + __j] * __factor;
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__factor *= __detail::_Shift<_UIntType, 32>::__value;
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}
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_M_x[__i] = __detail::__mod<_UIntType,
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__detail::_Shift<_UIntType, __w>::__value>(__sum);
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if (__zero)
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{
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if (__i == 0)
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{
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if ((_M_x[0] & __upper_mask) != 0u)
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__zero = false;
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}
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else if (_M_x[__i] != 0u)
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__zero = false;
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}
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}
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if (__zero)
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{
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if (__i == 0)
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{
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if ((_M_x[0] & __upper_mask) != 0u)
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__zero = false;
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}
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else if (_M_x[__i] != 0u)
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__zero = false;
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}
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}
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if (__zero)
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_M_x[0] = __detail::_Shift<_UIntType, __w - 1>::__value;
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}
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}
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template<typename _UIntType, size_t __w,
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size_t __n, size_t __m, size_t __r,
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@ -529,29 +531,30 @@ namespace std
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}
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template<typename _UIntType, size_t __w, size_t __s, size_t __r>
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void
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subtract_with_carry_engine<_UIntType, __w, __s, __r>::
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seed(seed_seq& __q)
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{
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const size_t __k = (__w + 31) / 32;
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uint_least32_t __arr[__r * __k];
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__q.generate(__arr + 0, __arr + __r * __k);
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template<typename _Sseq, typename>
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void
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subtract_with_carry_engine<_UIntType, __w, __s, __r>::
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seed(_Sseq& __q)
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{
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const size_t __k = (__w + 31) / 32;
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uint_least32_t __arr[__r * __k];
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__q.generate(__arr + 0, __arr + __r * __k);
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for (size_t __i = 0; __i < long_lag; ++__i)
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{
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_UIntType __sum = 0u;
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_UIntType __factor = 1u;
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for (size_t __j = 0; __j < __k; ++__j)
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{
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__sum += __arr[__k * __i + __j] * __factor;
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__factor *= __detail::_Shift<_UIntType, 32>::__value;
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}
|
||||
_M_x[__i] = __detail::__mod<_UIntType,
|
||||
__detail::_Shift<_UIntType, __w>::__value>(__sum);
|
||||
}
|
||||
_M_carry = (_M_x[long_lag - 1] == 0) ? 1 : 0;
|
||||
_M_p = 0;
|
||||
}
|
||||
for (size_t __i = 0; __i < long_lag; ++__i)
|
||||
{
|
||||
_UIntType __sum = 0u;
|
||||
_UIntType __factor = 1u;
|
||||
for (size_t __j = 0; __j < __k; ++__j)
|
||||
{
|
||||
__sum += __arr[__k * __i + __j] * __factor;
|
||||
__factor *= __detail::_Shift<_UIntType, 32>::__value;
|
||||
}
|
||||
_M_x[__i] = __detail::__mod<_UIntType,
|
||||
__detail::_Shift<_UIntType, __w>::__value>(__sum);
|
||||
}
|
||||
_M_carry = (_M_x[long_lag - 1] == 0) ? 1 : 0;
|
||||
_M_p = 0;
|
||||
}
|
||||
|
||||
template<typename _UIntType, size_t __w, size_t __s, size_t __r>
|
||||
typename subtract_with_carry_engine<_UIntType, __w, __s, __r>::
|
||||
|
|
|
|||
|
|
@ -0,0 +1,39 @@
|
|||
// { dg-options "-std=c++0x" }
|
||||
// { dg-require-cstdint "" }
|
||||
//
|
||||
// 2010-02-01 Paolo Carlini <paolo.carlini@oracle.com>
|
||||
//
|
||||
// Copyright (C) 2010 Free Software Foundation, Inc.
|
||||
//
|
||||
// This file is part of the GNU ISO C++ Library. This library is free
|
||||
// software; you can redistribute it and/or modify it under the
|
||||
// terms of the GNU General Public License as published by the
|
||||
// Free Software Foundation; either version 3, or (at your option)
|
||||
// any later version.
|
||||
//
|
||||
// This library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License along
|
||||
// with this library; see the file COPYING3. If not see
|
||||
// <http://www.gnu.org/licenses/>.
|
||||
|
||||
// 26.4.3.1 class template linear_congruential_engine [rand.eng.lcong]
|
||||
// 26.4.2.2 Concept RandomNumberEngine [rand.concept.eng]
|
||||
|
||||
#include <random>
|
||||
|
||||
void
|
||||
test01()
|
||||
{
|
||||
std::seed_seq seed;
|
||||
std::linear_congruential_engine<unsigned long, 48271, 0, 2147483647> x(seed);
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
test01();
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,44 @@
|
|||
// { dg-options "-std=c++0x" }
|
||||
// { dg-require-cstdint "" }
|
||||
//
|
||||
// 2010-02-01 Paolo Carlini <paolo.carlini@oracle.com>
|
||||
//
|
||||
// Copyright (C) 2010 Free Software Foundation, Inc.
|
||||
//
|
||||
// This file is part of the GNU ISO C++ Library. This library is free
|
||||
// software; you can redistribute it and/or modify it under the
|
||||
// terms of the GNU General Public License as published by the
|
||||
// Free Software Foundation; either version 3, or (at your option)
|
||||
// any later version.
|
||||
//
|
||||
// This library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License along
|
||||
// with this library; see the file COPYING3. If not see
|
||||
// <http://www.gnu.org/licenses/>.
|
||||
|
||||
// 26.4.3.2 Class template mersenne_twister_engine [rand.eng.mers]
|
||||
// 26.4.2.2 Concept RandomNumberEngine [rand.concept.eng]
|
||||
|
||||
#include <random>
|
||||
|
||||
void
|
||||
test01()
|
||||
{
|
||||
std::seed_seq seed;
|
||||
std::mersenne_twister_engine<
|
||||
unsigned long, 32, 624, 397, 31,
|
||||
0x9908b0dful, 11,
|
||||
0xfffffffful, 7,
|
||||
0x9d2c5680ul, 15,
|
||||
0xefc60000ul, 18, 1812433253ul> x(seed);
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
test01();
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,39 @@
|
|||
// { dg-options "-std=c++0x" }
|
||||
// { dg-require-cstdint "" }
|
||||
//
|
||||
// 2010-02-01 Paolo Carlini <paolo.carlini@oracle.com>
|
||||
//
|
||||
// Copyright (C) 2010 Free Software Foundation, Inc.
|
||||
//
|
||||
// This file is part of the GNU ISO C++ Library. This library is free
|
||||
// software; you can redistribute it and/or modify it under the
|
||||
// terms of the GNU General Public License as published by the
|
||||
// Free Software Foundation; either version 3, or (at your option)
|
||||
// any later version.
|
||||
//
|
||||
// This library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License along
|
||||
// with this library; see the file COPYING3. If not see
|
||||
// <http://www.gnu.org/licenses/>.
|
||||
|
||||
// 26.4.3.3 Class template subtract_with_carry_engine [rand.eng.sub]
|
||||
// 26.4.2.2 Concept RandomNumberEngine [rand.concept.eng]
|
||||
|
||||
#include <random>
|
||||
|
||||
void
|
||||
test01()
|
||||
{
|
||||
std::seed_seq seed;
|
||||
std::subtract_with_carry_engine<unsigned long, 24, 10, 24> x(seed);
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
test01();
|
||||
return 0;
|
||||
}
|
||||
Loading…
Add table
Reference in a new issue