mirror of
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Initial work for G-code sender and more intensive usage of Boost
This commit is contained in:
parent
43cbad8867
commit
11dd67ab34
1649 changed files with 1860 additions and 1642 deletions
18
xs/include/boost/random/detail/config.hpp
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18
xs/include/boost/random/detail/config.hpp
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/* boost random/detail/config.hpp header file
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*
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* Copyright Steven Watanabe 2009
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* Distributed under the Boost Software License, Version 1.0. (See
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* accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* See http://www.boost.org for most recent version including documentation.
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*
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* $Id: config.hpp 52492 2009-04-19 14:55:57Z steven_watanabe $
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*/
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#include <boost/config.hpp>
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#if (defined(BOOST_NO_OPERATORS_IN_NAMESPACE) || defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS)) \
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&& !defined(BOOST_MSVC)
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#define BOOST_RANDOM_NO_STREAM_OPERATORS
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#endif
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216
xs/include/boost/random/detail/const_mod.hpp
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216
xs/include/boost/random/detail/const_mod.hpp
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/* boost random/detail/const_mod.hpp header file
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*
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* Copyright Jens Maurer 2000-2001
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* Distributed under the Boost Software License, Version 1.0. (See
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* accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* See http://www.boost.org for most recent version including documentation.
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*
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* $Id: const_mod.hpp 71018 2011-04-05 21:27:52Z steven_watanabe $
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*
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* Revision history
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* 2001-02-18 moved to individual header files
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*/
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#ifndef BOOST_RANDOM_CONST_MOD_HPP
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#define BOOST_RANDOM_CONST_MOD_HPP
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#include <boost/assert.hpp>
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#include <boost/static_assert.hpp>
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#include <boost/integer_traits.hpp>
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#include <boost/type_traits/make_unsigned.hpp>
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#include <boost/random/detail/large_arithmetic.hpp>
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#include <boost/random/detail/disable_warnings.hpp>
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namespace boost {
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namespace random {
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template<class IntType, IntType m>
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class const_mod
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{
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public:
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static IntType apply(IntType x)
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{
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if(((unsigned_m() - 1) & unsigned_m()) == 0)
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return (unsigned_type(x)) & (unsigned_m() - 1);
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else {
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IntType supress_warnings = (m == 0);
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BOOST_ASSERT(supress_warnings == 0);
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return x % (m + supress_warnings);
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}
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}
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static IntType add(IntType x, IntType c)
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{
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if(((unsigned_m() - 1) & unsigned_m()) == 0)
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return (unsigned_type(x) + unsigned_type(c)) & (unsigned_m() - 1);
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else if(c == 0)
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return x;
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else if(x < m - c)
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return x + c;
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else
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return x - (m - c);
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}
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static IntType mult(IntType a, IntType x)
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{
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if(((unsigned_m() - 1) & unsigned_m()) == 0)
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return unsigned_type(a) * unsigned_type(x) & (unsigned_m() - 1);
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else if(a == 0)
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return 0;
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else if(a == 1)
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return x;
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else if(m <= traits::const_max/a) // i.e. a*m <= max
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return mult_small(a, x);
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else if(traits::is_signed && (m%a < m/a))
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return mult_schrage(a, x);
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else
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return mult_general(a, x);
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}
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static IntType mult_add(IntType a, IntType x, IntType c)
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{
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if(((unsigned_m() - 1) & unsigned_m()) == 0)
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return (unsigned_type(a) * unsigned_type(x) + unsigned_type(c)) & (unsigned_m() - 1);
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else if(a == 0)
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return c;
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else if(m <= (traits::const_max-c)/a) { // i.e. a*m+c <= max
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IntType supress_warnings = (m == 0);
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BOOST_ASSERT(supress_warnings == 0);
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return (a*x+c) % (m + supress_warnings);
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} else
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return add(mult(a, x), c);
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}
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static IntType pow(IntType a, boost::uintmax_t exponent)
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{
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IntType result = 1;
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while(exponent != 0) {
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if(exponent % 2 == 1) {
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result = mult(result, a);
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}
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a = mult(a, a);
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exponent /= 2;
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}
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return result;
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}
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static IntType invert(IntType x)
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{ return x == 0 ? 0 : (m == 0? invert_euclidian0(x) : invert_euclidian(x)); }
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private:
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typedef integer_traits<IntType> traits;
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typedef typename make_unsigned<IntType>::type unsigned_type;
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const_mod(); // don't instantiate
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static IntType mult_small(IntType a, IntType x)
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{
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IntType supress_warnings = (m == 0);
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BOOST_ASSERT(supress_warnings == 0);
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return a*x % (m + supress_warnings);
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}
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static IntType mult_schrage(IntType a, IntType value)
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{
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const IntType q = m / a;
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const IntType r = m % a;
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BOOST_ASSERT(r < q); // check that overflow cannot happen
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return sub(a*(value%q), r*(value/q));
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}
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static IntType mult_general(IntType a, IntType b)
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{
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IntType suppress_warnings = (m == 0);
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BOOST_ASSERT(suppress_warnings == 0);
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IntType modulus = m + suppress_warnings;
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BOOST_ASSERT(modulus == m);
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if(::boost::uintmax_t(modulus) <=
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(::std::numeric_limits< ::boost::uintmax_t>::max)() / modulus)
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{
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return static_cast<IntType>(boost::uintmax_t(a) * b % modulus);
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} else {
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return static_cast<IntType>(detail::mulmod(a, b, modulus));
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}
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}
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static IntType sub(IntType a, IntType b)
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{
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if(a < b)
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return m - (b - a);
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else
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return a - b;
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}
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static unsigned_type unsigned_m()
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{
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if(m == 0) {
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return unsigned_type((std::numeric_limits<IntType>::max)()) + 1;
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} else {
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return unsigned_type(m);
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}
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}
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// invert c in the finite field (mod m) (m must be prime)
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static IntType invert_euclidian(IntType c)
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{
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// we are interested in the gcd factor for c, because this is our inverse
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BOOST_ASSERT(c > 0);
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IntType l1 = 0;
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IntType l2 = 1;
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IntType n = c;
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IntType p = m;
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for(;;) {
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IntType q = p / n;
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l1 += q * l2;
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p -= q * n;
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if(p == 0)
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return l2;
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IntType q2 = n / p;
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l2 += q2 * l1;
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n -= q2 * p;
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if(n == 0)
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return m - l1;
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}
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}
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// invert c in the finite field (mod m) (c must be relatively prime to m)
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static IntType invert_euclidian0(IntType c)
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{
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// we are interested in the gcd factor for c, because this is our inverse
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BOOST_ASSERT(c > 0);
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if(c == 1) return 1;
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IntType l1 = 0;
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IntType l2 = 1;
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IntType n = c;
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IntType p = m;
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IntType max = (std::numeric_limits<IntType>::max)();
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IntType q = max / n;
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BOOST_ASSERT(max % n != n - 1 && "c must be relatively prime to m.");
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l1 += q * l2;
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p = max - q * n + 1;
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for(;;) {
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if(p == 0)
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return l2;
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IntType q2 = n / p;
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l2 += q2 * l1;
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n -= q2 * p;
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if(n == 0)
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return m - l1;
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q = p / n;
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l1 += q * l2;
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p -= q * n;
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}
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}
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};
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} // namespace random
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} // namespace boost
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#include <boost/random/detail/enable_warnings.hpp>
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#endif // BOOST_RANDOM_CONST_MOD_HPP
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23
xs/include/boost/random/detail/disable_warnings.hpp
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23
xs/include/boost/random/detail/disable_warnings.hpp
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/* boost random/detail/disable_warnings.hpp header file
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*
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* Copyright Steven Watanabe 2009
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* Distributed under the Boost Software License, Version 1.0. (See
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* accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* See http://www.boost.org for most recent version including documentation.
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*
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* $Id: disable_warnings.hpp 60755 2010-03-22 00:45:06Z steven_watanabe $
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*
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*/
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// No #include guard. This header is intended to be included multiple times.
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#include <boost/config.hpp>
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#ifdef BOOST_MSVC
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#pragma warning(push)
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#pragma warning(disable:4512)
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#pragma warning(disable:4127)
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#pragma warning(disable:4724)
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#endif
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18
xs/include/boost/random/detail/enable_warnings.hpp
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18
xs/include/boost/random/detail/enable_warnings.hpp
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/* boost random/detail/enable_warnings.hpp header file
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*
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* Copyright Steven Watanabe 2009
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* Distributed under the Boost Software License, Version 1.0. (See
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* accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* See http://www.boost.org for most recent version including documentation.
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*
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* $Id: enable_warnings.hpp 58649 2010-01-02 21:23:17Z steven_watanabe $
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*
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*/
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// No #include guard. This header is intended to be included multiple times.
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#ifdef BOOST_MSVC
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#pragma warning(pop)
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#endif
|
36
xs/include/boost/random/detail/generator_bits.hpp
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36
xs/include/boost/random/detail/generator_bits.hpp
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/* boost random/detail/generator_bits.hpp header file
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*
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* Copyright Steven Watanabe 2011
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* Distributed under the Boost Software License, Version 1.0. (See
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* accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* See http://www.boost.org for most recent version including documentation.
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*
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* $Id: generator_bits.hpp 72951 2011-07-07 04:57:37Z steven_watanabe $
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*
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*/
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#ifndef BOOST_RANDOM_DETAIL_GENERATOR_BITS_HPP
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#define BOOST_RANDOM_DETAIL_GENERATOR_BITS_HPP
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#include <boost/limits.hpp>
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namespace boost {
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namespace random {
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namespace detail {
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// This is a temporary measure that retains backwards
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// compatibility.
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template<class URNG>
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struct generator_bits {
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static std::size_t value() {
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return std::numeric_limits<typename URNG::result_type>::digits;
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}
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};
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} // namespace detail
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} // namespace random
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} // namespace boost
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#endif // BOOST_RANDOM_DETAIL_GENERATOR_BITS_HPP
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40
xs/include/boost/random/detail/generator_seed_seq.hpp
Normal file
40
xs/include/boost/random/detail/generator_seed_seq.hpp
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/* boost random/mersenne_twister.hpp header file
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*
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* Copyright Jens Maurer 2000-2001
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* Copyright Steven Watanabe 2010
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* Distributed under the Boost Software License, Version 1.0. (See
|
||||
* accompanying file LICENSE_1_0.txt or copy at
|
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* http://www.boost.org/LICENSE_1_0.txt)
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*
|
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* See http://www.boost.org for most recent version including documentation.
|
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*
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* $Id: generator_seed_seq.hpp 71018 2011-04-05 21:27:52Z steven_watanabe $
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*
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*/
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#ifndef BOOST_RANDOM_DETAIL_GENERATOR_SEED_SEQ_HPP_INCLUDED
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#define BOOST_RANDOM_DETAIL_GENERATOR_SEED_SEQ_HPP_INCLUDED
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namespace boost {
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namespace random {
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namespace detail {
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|
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template<class Generator>
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class generator_seed_seq {
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public:
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generator_seed_seq(Generator& g) : gen(&g) {}
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template<class It>
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void generate(It first, It last) {
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for(; first != last; ++first) {
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*first = (*gen)();
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}
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}
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private:
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Generator* gen;
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};
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|
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}
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}
|
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}
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#endif
|
84
xs/include/boost/random/detail/integer_log2.hpp
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84
xs/include/boost/random/detail/integer_log2.hpp
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/* boost random/detail/integer_log2.hpp header file
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*
|
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* Copyright Steven Watanabe 2011
|
||||
* Distributed under the Boost Software License, Version 1.0. (See
|
||||
* accompanying file LICENSE_1_0.txt or copy at
|
||||
* http://www.boost.org/LICENSE_1_0.txt)
|
||||
*
|
||||
* See http://www.boost.org for most recent version including documentation.
|
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*
|
||||
* $Id: integer_log2.hpp 85813 2013-09-21 20:17:00Z jewillco $
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||||
*
|
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*/
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#ifndef BOOST_RANDOM_DETAIL_INTEGER_LOG2_HPP
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#define BOOST_RANDOM_DETAIL_INTEGER_LOG2_HPP
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|
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#include <boost/config.hpp>
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#include <boost/limits.hpp>
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#include <boost/pending/integer_log2.hpp>
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|
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namespace boost {
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namespace random {
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namespace detail {
|
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|
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#if !defined(BOOST_NO_CXX11_CONSTEXPR)
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#define BOOST_RANDOM_DETAIL_CONSTEXPR constexpr
|
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#elif defined(BOOST_MSVC)
|
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#define BOOST_RANDOM_DETAIL_CONSTEXPR __forceinline
|
||||
#elif defined(__GNUC__) && __GNUC__ >= 4
|
||||
#define BOOST_RANDOM_DETAIL_CONSTEXPR inline __attribute__((const)) __attribute__((always_inline))
|
||||
#else
|
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#define BOOST_RANDOM_DETAIL_CONSTEXPR inline
|
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#endif
|
||||
|
||||
template<int Shift>
|
||||
struct integer_log2_impl
|
||||
{
|
||||
#if defined(BOOST_NO_CXX11_CONSTEXPR)
|
||||
template<class T>
|
||||
BOOST_RANDOM_DETAIL_CONSTEXPR static int apply(T t, int accum)
|
||||
{
|
||||
int update = ((t >> Shift) != 0) * Shift;
|
||||
return integer_log2_impl<Shift / 2>::apply(t >> update, accum + update);
|
||||
}
|
||||
#else
|
||||
template<class T>
|
||||
BOOST_RANDOM_DETAIL_CONSTEXPR static int apply2(T t, int accum, int update)
|
||||
{
|
||||
return integer_log2_impl<Shift / 2>::apply(t >> update, accum + update);
|
||||
}
|
||||
|
||||
template<class T>
|
||||
BOOST_RANDOM_DETAIL_CONSTEXPR static int apply(T t, int accum)
|
||||
{
|
||||
return apply2(t, accum, ((t >> Shift) != 0) * Shift);
|
||||
}
|
||||
#endif
|
||||
};
|
||||
|
||||
template<>
|
||||
struct integer_log2_impl<1>
|
||||
{
|
||||
template<class T>
|
||||
BOOST_RANDOM_DETAIL_CONSTEXPR static int apply(T t, int accum)
|
||||
{
|
||||
return int(t >> 1) + accum;
|
||||
}
|
||||
};
|
||||
|
||||
template<class T>
|
||||
BOOST_RANDOM_DETAIL_CONSTEXPR int integer_log2(T t)
|
||||
{
|
||||
return integer_log2_impl<
|
||||
::boost::detail::max_pow2_less<
|
||||
::std::numeric_limits<T>::digits, 4
|
||||
>::value
|
||||
>::apply(t, 0);
|
||||
}
|
||||
|
||||
} // namespace detail
|
||||
} // namespace random
|
||||
} // namespace boost
|
||||
|
||||
#endif // BOOST_RANDOM_DETAIL_INTEGER_LOG2_HPP
|
122
xs/include/boost/random/detail/large_arithmetic.hpp
Normal file
122
xs/include/boost/random/detail/large_arithmetic.hpp
Normal file
|
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|
|||
/* boost random/detail/large_arithmetic.hpp header file
|
||||
*
|
||||
* Copyright Steven Watanabe 2011
|
||||
* Distributed under the Boost Software License, Version 1.0. (See
|
||||
* accompanying file LICENSE_1_0.txt or copy at
|
||||
* http://www.boost.org/LICENSE_1_0.txt)
|
||||
*
|
||||
* See http://www.boost.org for most recent version including documentation.
|
||||
*
|
||||
* $Id: large_arithmetic.hpp 71018 2011-04-05 21:27:52Z steven_watanabe $
|
||||
*/
|
||||
|
||||
#ifndef BOOST_RANDOM_DETAIL_LARGE_ARITHMETIC_HPP
|
||||
#define BOOST_RANDOM_DETAIL_LARGE_ARITHMETIC_HPP
|
||||
|
||||
#include <boost/cstdint.hpp>
|
||||
#include <boost/integer.hpp>
|
||||
#include <boost/limits.hpp>
|
||||
#include <boost/random/detail/integer_log2.hpp>
|
||||
|
||||
#include <boost/random/detail/disable_warnings.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace random {
|
||||
namespace detail {
|
||||
|
||||
struct div_t {
|
||||
boost::uintmax_t quotient;
|
||||
boost::uintmax_t remainder;
|
||||
};
|
||||
|
||||
inline div_t muldivmod(boost::uintmax_t a, boost::uintmax_t b, boost::uintmax_t m)
|
||||
{
|
||||
static const int bits =
|
||||
::std::numeric_limits< ::boost::uintmax_t>::digits / 2;
|
||||
static const ::boost::uintmax_t mask = (::boost::uintmax_t(1) << bits) - 1;
|
||||
typedef ::boost::uint_t<bits>::fast digit_t;
|
||||
|
||||
int shift = std::numeric_limits< ::boost::uintmax_t>::digits - 1
|
||||
- detail::integer_log2(m);
|
||||
|
||||
a <<= shift;
|
||||
m <<= shift;
|
||||
|
||||
digit_t product[4] = { 0, 0, 0, 0 };
|
||||
digit_t a_[2] = { digit_t(a & mask), digit_t((a >> bits) & mask) };
|
||||
digit_t b_[2] = { digit_t(b & mask), digit_t((b >> bits) & mask) };
|
||||
digit_t m_[2] = { digit_t(m & mask), digit_t((m >> bits) & mask) };
|
||||
|
||||
// multiply a * b
|
||||
for(int i = 0; i < 2; ++i) {
|
||||
digit_t carry = 0;
|
||||
for(int j = 0; j < 2; ++j) {
|
||||
::boost::uint64_t temp = ::boost::uintmax_t(a_[i]) * b_[j] +
|
||||
carry + product[i + j];
|
||||
product[i + j] = digit_t(temp & mask);
|
||||
carry = digit_t(temp >> bits);
|
||||
}
|
||||
if(carry != 0) {
|
||||
product[i + 2] += carry;
|
||||
}
|
||||
}
|
||||
|
||||
digit_t quotient[2];
|
||||
|
||||
if(m == 0) {
|
||||
div_t result = {
|
||||
((::boost::uintmax_t(product[3]) << bits) | product[2]),
|
||||
((::boost::uintmax_t(product[1]) << bits) | product[0]) >> shift,
|
||||
};
|
||||
return result;
|
||||
}
|
||||
|
||||
// divide product / m
|
||||
for(int i = 3; i >= 2; --i) {
|
||||
::boost::uintmax_t temp =
|
||||
::boost::uintmax_t(product[i]) << bits | product[i - 1];
|
||||
|
||||
digit_t q = digit_t((product[i] == m_[1]) ? mask : temp / m_[1]);
|
||||
|
||||
::boost::uintmax_t rem =
|
||||
((temp - ::boost::uintmax_t(q) * m_[1]) << bits) + product[i - 2];
|
||||
|
||||
::boost::uintmax_t diff = m_[0] * ::boost::uintmax_t(q);
|
||||
|
||||
int error = 0;
|
||||
if(diff > rem) {
|
||||
if(diff - rem > m) {
|
||||
error = 2;
|
||||
} else {
|
||||
error = 1;
|
||||
}
|
||||
}
|
||||
q -= error;
|
||||
rem = rem + error * m - diff;
|
||||
|
||||
quotient[i - 2] = q;
|
||||
product[i] = 0;
|
||||
product[i-1] = (rem >> bits) & mask;
|
||||
product[i-2] = rem & mask;
|
||||
}
|
||||
|
||||
div_t result = {
|
||||
((::boost::uintmax_t(quotient[1]) << bits) | quotient[0]),
|
||||
((::boost::uintmax_t(product[1]) << bits) | product[0]) >> shift,
|
||||
};
|
||||
return result;
|
||||
}
|
||||
|
||||
inline boost::uintmax_t muldiv(boost::uintmax_t a, boost::uintmax_t b, boost::uintmax_t m)
|
||||
{ return detail::muldivmod(a, b, m).quotient; }
|
||||
|
||||
inline boost::uintmax_t mulmod(boost::uintmax_t a, boost::uintmax_t b, boost::uintmax_t m)
|
||||
{ return detail::muldivmod(a, b, m).remainder; }
|
||||
|
||||
} // namespace detail
|
||||
} // namespace random
|
||||
} // namespace boost
|
||||
|
||||
#include <boost/random/detail/enable_warnings.hpp>
|
||||
|
||||
#endif // BOOST_RANDOM_DETAIL_LARGE_ARITHMETIC_HPP
|
84
xs/include/boost/random/detail/operators.hpp
Normal file
84
xs/include/boost/random/detail/operators.hpp
Normal file
|
@ -0,0 +1,84 @@
|
|||
/* boost random/detail/operators.hpp header file
|
||||
*
|
||||
* Copyright Steven Watanabe 2010-2011
|
||||
* Distributed under the Boost Software License, Version 1.0. (See
|
||||
* accompanying file LICENSE_1_0.txt or copy at
|
||||
* http://www.boost.org/LICENSE_1_0.txt)
|
||||
*
|
||||
* See http://www.boost.org for most recent version including documentation.
|
||||
*
|
||||
* $Id: operators.hpp 71018 2011-04-05 21:27:52Z steven_watanabe $
|
||||
*/
|
||||
|
||||
#ifndef BOOST_RANDOM_DETAIL_OPERATORS_HPP
|
||||
#define BOOST_RANDOM_DETAIL_OPERATORS_HPP
|
||||
|
||||
#include <boost/random/detail/config.hpp>
|
||||
#include <boost/detail/workaround.hpp>
|
||||
|
||||
#if BOOST_WORKAROUND(BOOST_MSVC, <= 1310) \
|
||||
|| BOOST_WORKAROUND(__SUNPRO_CC, BOOST_TESTED_AT(0x5100))
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_OSTREAM_OPERATOR(os, T, t) \
|
||||
template<class CharT, class Traits> \
|
||||
friend std::basic_ostream<CharT,Traits>& \
|
||||
operator<<(std::basic_ostream<CharT,Traits>& os, const T& t) { \
|
||||
t.print(os, t); \
|
||||
return os; \
|
||||
} \
|
||||
template<class CharT, class Traits> \
|
||||
static std::basic_ostream<CharT,Traits>& \
|
||||
print(std::basic_ostream<CharT,Traits>& os, const T& t)
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_ISTREAM_OPERATOR(is, T, t) \
|
||||
template<class CharT, class Traits> \
|
||||
friend std::basic_istream<CharT,Traits>& \
|
||||
operator>>(std::basic_istream<CharT,Traits>& is, T& t) { \
|
||||
t.read(is, t); \
|
||||
return is; \
|
||||
} \
|
||||
template<class CharT, class Traits> \
|
||||
static std::basic_istream<CharT,Traits>& \
|
||||
read(std::basic_istream<CharT,Traits>& is, T& t)
|
||||
|
||||
#endif
|
||||
|
||||
#if defined(__BORLANDC__)
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_EQUALITY_OPERATOR(T, lhs, rhs) \
|
||||
bool operator==(const T& rhs) const \
|
||||
{ return T::is_equal(*this, rhs); } \
|
||||
static bool is_equal(const T& lhs, const T& rhs)
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_INEQUALITY_OPERATOR(T) \
|
||||
bool operator!=(const T& rhs) const \
|
||||
{ return !T::is_equal(*this, rhs); }
|
||||
|
||||
#endif
|
||||
|
||||
#ifndef BOOST_RANDOM_DETAIL_OSTREAM_OPERATOR
|
||||
#define BOOST_RANDOM_DETAIL_OSTREAM_OPERATOR(os, T, t) \
|
||||
template<class CharT, class Traits> \
|
||||
friend std::basic_ostream<CharT,Traits>& \
|
||||
operator<<(std::basic_ostream<CharT,Traits>& os, const T& t)
|
||||
#endif
|
||||
|
||||
#ifndef BOOST_RANDOM_DETAIL_ISTREAM_OPERATOR
|
||||
#define BOOST_RANDOM_DETAIL_ISTREAM_OPERATOR(is, T, t) \
|
||||
template<class CharT, class Traits> \
|
||||
friend std::basic_istream<CharT,Traits>& \
|
||||
operator>>(std::basic_istream<CharT,Traits>& is, T& t)
|
||||
#endif
|
||||
|
||||
#ifndef BOOST_RANDOM_DETAIL_EQUALITY_OPERATOR
|
||||
#define BOOST_RANDOM_DETAIL_EQUALITY_OPERATOR(T, lhs, rhs) \
|
||||
friend bool operator==(const T& lhs, const T& rhs)
|
||||
#endif
|
||||
|
||||
#ifndef BOOST_RANDOM_DETAIL_INEQUALITY_OPERATOR
|
||||
#define BOOST_RANDOM_DETAIL_INEQUALITY_OPERATOR(T) \
|
||||
friend bool operator!=(const T& lhs, const T& rhs) \
|
||||
{ return !(lhs == rhs); }
|
||||
#endif
|
||||
|
||||
#endif
|
94
xs/include/boost/random/detail/ptr_helper.hpp
Normal file
94
xs/include/boost/random/detail/ptr_helper.hpp
Normal file
|
@ -0,0 +1,94 @@
|
|||
/* boost random/detail/ptr_helper.hpp header file
|
||||
*
|
||||
* Copyright Jens Maurer 2002
|
||||
* Distributed under the Boost Software License, Version 1.0. (See
|
||||
* accompanying file LICENSE_1_0.txt or copy at
|
||||
* http://www.boost.org/LICENSE_1_0.txt)
|
||||
*
|
||||
* See http://www.boost.org for most recent version including documentation.
|
||||
*
|
||||
* $Id: ptr_helper.hpp 24096 2004-07-27 03:43:34Z dgregor $
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef BOOST_RANDOM_DETAIL_PTR_HELPER_HPP
|
||||
#define BOOST_RANDOM_DETAIL_PTR_HELPER_HPP
|
||||
|
||||
#include <boost/config.hpp>
|
||||
|
||||
|
||||
namespace boost {
|
||||
namespace random {
|
||||
namespace detail {
|
||||
|
||||
// type_traits could help here, but I don't want to depend on type_traits.
|
||||
template<class T>
|
||||
struct ptr_helper
|
||||
{
|
||||
typedef T value_type;
|
||||
typedef T& reference_type;
|
||||
typedef const T& rvalue_type;
|
||||
static reference_type ref(T& r) { return r; }
|
||||
static const T& ref(const T& r) { return r; }
|
||||
};
|
||||
|
||||
#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
|
||||
template<class T>
|
||||
struct ptr_helper<T&>
|
||||
{
|
||||
typedef T value_type;
|
||||
typedef T& reference_type;
|
||||
typedef T& rvalue_type;
|
||||
static reference_type ref(T& r) { return r; }
|
||||
static const T& ref(const T& r) { return r; }
|
||||
};
|
||||
|
||||
template<class T>
|
||||
struct ptr_helper<T*>
|
||||
{
|
||||
typedef T value_type;
|
||||
typedef T& reference_type;
|
||||
typedef T* rvalue_type;
|
||||
static reference_type ref(T * p) { return *p; }
|
||||
static const T& ref(const T * p) { return *p; }
|
||||
};
|
||||
#endif
|
||||
|
||||
} // namespace detail
|
||||
} // namespace random
|
||||
} // namespace boost
|
||||
|
||||
//
|
||||
// BOOST_RANDOM_PTR_HELPER_SPEC --
|
||||
//
|
||||
// Helper macro for broken compilers defines specializations of
|
||||
// ptr_helper.
|
||||
//
|
||||
#ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
|
||||
# define BOOST_RANDOM_PTR_HELPER_SPEC(T) \
|
||||
namespace boost { namespace random { namespace detail { \
|
||||
template<> \
|
||||
struct ptr_helper<T&> \
|
||||
{ \
|
||||
typedef T value_type; \
|
||||
typedef T& reference_type; \
|
||||
typedef T& rvalue_type; \
|
||||
static reference_type ref(T& r) { return r; } \
|
||||
static const T& ref(const T& r) { return r; } \
|
||||
}; \
|
||||
\
|
||||
template<> \
|
||||
struct ptr_helper<T*> \
|
||||
{ \
|
||||
typedef T value_type; \
|
||||
typedef T& reference_type; \
|
||||
typedef T* rvalue_type; \
|
||||
static reference_type ref(T * p) { return *p; } \
|
||||
static const T& ref(const T * p) { return *p; } \
|
||||
}; \
|
||||
}}}
|
||||
#else
|
||||
# define BOOST_RANDOM_PTR_HELPER_SPEC(T)
|
||||
#endif
|
||||
|
||||
#endif // BOOST_RANDOM_DETAIL_PTR_HELPER_HPP
|
114
xs/include/boost/random/detail/seed.hpp
Normal file
114
xs/include/boost/random/detail/seed.hpp
Normal file
|
@ -0,0 +1,114 @@
|
|||
/* boost random/detail/seed.hpp header file
|
||||
*
|
||||
* Copyright Steven Watanabe 2009
|
||||
* Distributed under the Boost Software License, Version 1.0. (See
|
||||
* accompanying file LICENSE_1_0.txt or copy at
|
||||
* http://www.boost.org/LICENSE_1_0.txt)
|
||||
*
|
||||
* See http://www.boost.org for most recent version including documentation.
|
||||
*
|
||||
* $Id: seed.hpp 71018 2011-04-05 21:27:52Z steven_watanabe $
|
||||
*/
|
||||
|
||||
#ifndef BOOST_RANDOM_DETAIL_SEED_HPP
|
||||
#define BOOST_RANDOM_DETAIL_SEED_HPP
|
||||
|
||||
#include <boost/config.hpp>
|
||||
|
||||
// Sun seems to have trouble with the use of SFINAE for the
|
||||
// templated constructor. So does Borland.
|
||||
#if !defined(BOOST_NO_SFINAE) && !defined(__SUNPRO_CC) && !defined(__BORLANDC__)
|
||||
|
||||
#include <boost/utility/enable_if.hpp>
|
||||
#include <boost/type_traits/is_arithmetic.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace random {
|
||||
namespace detail {
|
||||
|
||||
template<class T>
|
||||
struct disable_seed : boost::disable_if<boost::is_arithmetic<T> > {};
|
||||
|
||||
template<class Engine, class T>
|
||||
struct disable_constructor : disable_seed<T> {};
|
||||
|
||||
template<class Engine>
|
||||
struct disable_constructor<Engine, Engine> {};
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_GENERATOR_CONSTRUCTOR(Self, Generator, gen) \
|
||||
template<class Generator> \
|
||||
explicit Self(Generator& gen, typename ::boost::random::detail::disable_constructor<Self, Generator>::type* = 0)
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_GENERATOR_SEED(Self, Generator, gen) \
|
||||
template<class Generator> \
|
||||
void seed(Generator& gen, typename ::boost::random::detail::disable_seed<Generator>::type* = 0)
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_SEED_SEQ_CONSTRUCTOR(Self, SeedSeq, seq) \
|
||||
template<class SeedSeq> \
|
||||
explicit Self(SeedSeq& seq, typename ::boost::random::detail::disable_constructor<Self, SeedSeq>::type* = 0)
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_SEED_SEQ_SEED(Self, SeedSeq, seq) \
|
||||
template<class SeedSeq> \
|
||||
void seed(SeedSeq& seq, typename ::boost::random::detail::disable_seed<SeedSeq>::type* = 0)
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_ARITHMETIC_CONSTRUCTOR(Self, T, x) \
|
||||
explicit Self(const T& x)
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_ARITHMETIC_SEED(Self, T, x) \
|
||||
void seed(const T& x)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
#include <boost/type_traits/is_arithmetic.hpp>
|
||||
#include <boost/mpl/bool.hpp>
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_GENERATOR_CONSTRUCTOR(Self, Generator, gen) \
|
||||
Self(Self& other) { *this = other; } \
|
||||
Self(const Self& other) { *this = other; } \
|
||||
template<class Generator> \
|
||||
explicit Self(Generator& gen) { \
|
||||
boost_random_constructor_impl(gen, ::boost::is_arithmetic<Generator>());\
|
||||
} \
|
||||
template<class Generator> \
|
||||
void boost_random_constructor_impl(Generator& gen, ::boost::mpl::false_)
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_GENERATOR_SEED(Self, Generator, gen) \
|
||||
template<class Generator> \
|
||||
void seed(Generator& gen) { \
|
||||
boost_random_seed_impl(gen, ::boost::is_arithmetic<Generator>());\
|
||||
}\
|
||||
template<class Generator>\
|
||||
void boost_random_seed_impl(Generator& gen, ::boost::mpl::false_)
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_SEED_SEQ_CONSTRUCTOR(Self, SeedSeq, seq) \
|
||||
Self(Self& other) { *this = other; } \
|
||||
Self(const Self& other) { *this = other; } \
|
||||
template<class SeedSeq> \
|
||||
explicit Self(SeedSeq& seq) { \
|
||||
boost_random_constructor_impl(seq, ::boost::is_arithmetic<SeedSeq>());\
|
||||
} \
|
||||
template<class SeedSeq> \
|
||||
void boost_random_constructor_impl(SeedSeq& seq, ::boost::mpl::false_)
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_SEED_SEQ_SEED(Self, SeedSeq, seq) \
|
||||
template<class SeedSeq> \
|
||||
void seed(SeedSeq& seq) { \
|
||||
boost_random_seed_impl(seq, ::boost::is_arithmetic<SeedSeq>()); \
|
||||
} \
|
||||
template<class SeedSeq> \
|
||||
void boost_random_seed_impl(SeedSeq& seq, ::boost::mpl::false_)
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_ARITHMETIC_CONSTRUCTOR(Self, T, x) \
|
||||
explicit Self(const T& x) { boost_random_constructor_impl(x, ::boost::mpl::true_()); }\
|
||||
void boost_random_constructor_impl(const T& x, ::boost::mpl::true_)
|
||||
|
||||
#define BOOST_RANDOM_DETAIL_ARITHMETIC_SEED(Self, T, x) \
|
||||
void seed(const T& x) { boost_random_seed_impl(x, ::boost::mpl::true_()); }\
|
||||
void boost_random_seed_impl(const T& x, ::boost::mpl::true_)
|
||||
|
||||
#endif
|
||||
|
||||
#endif
|
397
xs/include/boost/random/detail/seed_impl.hpp
Normal file
397
xs/include/boost/random/detail/seed_impl.hpp
Normal file
|
@ -0,0 +1,397 @@
|
|||
/* boost random/detail/seed.hpp header file
|
||||
*
|
||||
* Copyright Steven Watanabe 2009
|
||||
* Distributed under the Boost Software License, Version 1.0. (See
|
||||
* accompanying file LICENSE_1_0.txt or copy at
|
||||
* http://www.boost.org/LICENSE_1_0.txt)
|
||||
*
|
||||
* See http://www.boost.org for most recent version including documentation.
|
||||
*
|
||||
* $Id: seed_impl.hpp 72951 2011-07-07 04:57:37Z steven_watanabe $
|
||||
*/
|
||||
|
||||
#ifndef BOOST_RANDOM_DETAIL_SEED_IMPL_HPP
|
||||
#define BOOST_RANDOM_DETAIL_SEED_IMPL_HPP
|
||||
|
||||
#include <stdexcept>
|
||||
#include <boost/cstdint.hpp>
|
||||
#include <boost/config/no_tr1/cmath.hpp>
|
||||
#include <boost/integer/integer_mask.hpp>
|
||||
#include <boost/integer/static_log2.hpp>
|
||||
#include <boost/type_traits/is_signed.hpp>
|
||||
#include <boost/type_traits/is_integral.hpp>
|
||||
#include <boost/type_traits/make_unsigned.hpp>
|
||||
#include <boost/mpl/bool.hpp>
|
||||
#include <boost/mpl/if.hpp>
|
||||
#include <boost/mpl/int.hpp>
|
||||
#include <boost/random/detail/const_mod.hpp>
|
||||
#include <boost/random/detail/integer_log2.hpp>
|
||||
#include <boost/random/detail/signed_unsigned_tools.hpp>
|
||||
#include <boost/random/detail/generator_bits.hpp>
|
||||
|
||||
#include <boost/random/detail/disable_warnings.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace random {
|
||||
namespace detail {
|
||||
|
||||
// finds the seed type of an engine, given its
|
||||
// result_type. If the result_type is integral
|
||||
// the seed type is the same. If the result_type
|
||||
// is floating point, the seed type is uint32_t
|
||||
template<class T>
|
||||
struct seed_type
|
||||
{
|
||||
typedef typename boost::mpl::if_<boost::is_integral<T>,
|
||||
T,
|
||||
boost::uint32_t
|
||||
>::type type;
|
||||
};
|
||||
|
||||
template<int N>
|
||||
struct const_pow_impl
|
||||
{
|
||||
template<class T>
|
||||
static T call(T arg, int n, T result)
|
||||
{
|
||||
return const_pow_impl<N / 2>::call(arg * arg, n / 2,
|
||||
n%2 == 0? result : result * arg);
|
||||
}
|
||||
};
|
||||
|
||||
template<>
|
||||
struct const_pow_impl<0>
|
||||
{
|
||||
template<class T>
|
||||
static T call(T, int, T result)
|
||||
{
|
||||
return result;
|
||||
}
|
||||
};
|
||||
|
||||
// requires N is an upper bound on n
|
||||
template<int N, class T>
|
||||
inline T const_pow(T arg, int n) { return const_pow_impl<N>::call(arg, n, T(1)); }
|
||||
|
||||
template<class T>
|
||||
inline T pow2(int n)
|
||||
{
|
||||
typedef unsigned int_type;
|
||||
const int max_bits = std::numeric_limits<int_type>::digits;
|
||||
T multiplier = T(int_type(1) << (max_bits - 1)) * 2;
|
||||
return (int_type(1) << (n % max_bits)) *
|
||||
const_pow<std::numeric_limits<T>::digits / max_bits>(multiplier, n / max_bits);
|
||||
}
|
||||
|
||||
template<class Engine, class Iter>
|
||||
void generate_from_real(Engine& eng, Iter begin, Iter end)
|
||||
{
|
||||
using std::fmod;
|
||||
typedef typename Engine::result_type RealType;
|
||||
const int Bits = detail::generator_bits<Engine>::value();
|
||||
int remaining_bits = 0;
|
||||
boost::uint_least32_t saved_bits = 0;
|
||||
RealType multiplier = pow2<RealType>( Bits);
|
||||
RealType mult32 = RealType(4294967296.0); // 2^32
|
||||
while(true) {
|
||||
RealType val = eng() * multiplier;
|
||||
int available_bits = Bits;
|
||||
// Make sure the compiler can optimize this out
|
||||
// if it isn't possible.
|
||||
if(Bits < 32 && available_bits < 32 - remaining_bits) {
|
||||
saved_bits |= boost::uint_least32_t(val) << remaining_bits;
|
||||
remaining_bits += Bits;
|
||||
} else {
|
||||
// If Bits < 32, then remaining_bits != 0, since
|
||||
// if remaining_bits == 0, available_bits < 32 - 0,
|
||||
// and we won't get here to begin with.
|
||||
if(Bits < 32 || remaining_bits != 0) {
|
||||
boost::uint_least32_t divisor =
|
||||
(boost::uint_least32_t(1) << (32 - remaining_bits));
|
||||
boost::uint_least32_t extra_bits = boost::uint_least32_t(fmod(val, mult32)) & (divisor - 1);
|
||||
val = val / divisor;
|
||||
*begin++ = saved_bits | (extra_bits << remaining_bits);
|
||||
if(begin == end) return;
|
||||
available_bits -= 32 - remaining_bits;
|
||||
remaining_bits = 0;
|
||||
}
|
||||
// If Bits < 32 we should never enter this loop
|
||||
if(Bits >= 32) {
|
||||
for(; available_bits >= 32; available_bits -= 32) {
|
||||
boost::uint_least32_t word = boost::uint_least32_t(fmod(val, mult32));
|
||||
val /= mult32;
|
||||
*begin++ = word;
|
||||
if(begin == end) return;
|
||||
}
|
||||
}
|
||||
remaining_bits = available_bits;
|
||||
saved_bits = static_cast<boost::uint_least32_t>(val);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
template<class Engine, class Iter>
|
||||
void generate_from_int(Engine& eng, Iter begin, Iter end)
|
||||
{
|
||||
typedef typename Engine::result_type IntType;
|
||||
typedef typename boost::make_unsigned<IntType>::type unsigned_type;
|
||||
int remaining_bits = 0;
|
||||
boost::uint_least32_t saved_bits = 0;
|
||||
unsigned_type range = boost::random::detail::subtract<IntType>()((eng.max)(), (eng.min)());
|
||||
|
||||
int bits =
|
||||
(range == (std::numeric_limits<unsigned_type>::max)()) ?
|
||||
std::numeric_limits<unsigned_type>::digits :
|
||||
detail::integer_log2(range + 1);
|
||||
|
||||
{
|
||||
int discarded_bits = detail::integer_log2(bits);
|
||||
unsigned_type excess = (range + 1) >> (bits - discarded_bits);
|
||||
if(excess != 0) {
|
||||
int extra_bits = detail::integer_log2((excess - 1) ^ excess);
|
||||
bits = bits - discarded_bits + extra_bits;
|
||||
}
|
||||
}
|
||||
|
||||
unsigned_type mask = (static_cast<unsigned_type>(2) << (bits - 1)) - 1;
|
||||
unsigned_type limit = ((range + 1) & ~mask) - 1;
|
||||
|
||||
while(true) {
|
||||
unsigned_type val;
|
||||
do {
|
||||
val = boost::random::detail::subtract<IntType>()(eng(), (eng.min)());
|
||||
} while(limit != range && val > limit);
|
||||
val &= mask;
|
||||
int available_bits = bits;
|
||||
if(available_bits == 32) {
|
||||
*begin++ = static_cast<boost::uint_least32_t>(val) & 0xFFFFFFFFu;
|
||||
if(begin == end) return;
|
||||
} else if(available_bits % 32 == 0) {
|
||||
for(int i = 0; i < available_bits / 32; ++i) {
|
||||
boost::uint_least32_t word = boost::uint_least32_t(val) & 0xFFFFFFFFu;
|
||||
int supress_warning = (bits >= 32);
|
||||
BOOST_ASSERT(supress_warning == 1);
|
||||
val >>= (32 * supress_warning);
|
||||
*begin++ = word;
|
||||
if(begin == end) return;
|
||||
}
|
||||
} else if(bits < 32 && available_bits < 32 - remaining_bits) {
|
||||
saved_bits |= boost::uint_least32_t(val) << remaining_bits;
|
||||
remaining_bits += bits;
|
||||
} else {
|
||||
if(bits < 32 || remaining_bits != 0) {
|
||||
boost::uint_least32_t extra_bits = boost::uint_least32_t(val) & ((boost::uint_least32_t(1) << (32 - remaining_bits)) - 1);
|
||||
val >>= 32 - remaining_bits;
|
||||
*begin++ = saved_bits | (extra_bits << remaining_bits);
|
||||
if(begin == end) return;
|
||||
available_bits -= 32 - remaining_bits;
|
||||
remaining_bits = 0;
|
||||
}
|
||||
if(bits >= 32) {
|
||||
for(; available_bits >= 32; available_bits -= 32) {
|
||||
boost::uint_least32_t word = boost::uint_least32_t(val) & 0xFFFFFFFFu;
|
||||
int supress_warning = (bits >= 32);
|
||||
BOOST_ASSERT(supress_warning == 1);
|
||||
val >>= (32 * supress_warning);
|
||||
*begin++ = word;
|
||||
if(begin == end) return;
|
||||
}
|
||||
}
|
||||
remaining_bits = available_bits;
|
||||
saved_bits = static_cast<boost::uint_least32_t>(val);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
template<class Engine, class Iter>
|
||||
void generate_impl(Engine& eng, Iter first, Iter last, boost::mpl::true_)
|
||||
{
|
||||
return detail::generate_from_int(eng, first, last);
|
||||
}
|
||||
|
||||
template<class Engine, class Iter>
|
||||
void generate_impl(Engine& eng, Iter first, Iter last, boost::mpl::false_)
|
||||
{
|
||||
return detail::generate_from_real(eng, first, last);
|
||||
}
|
||||
|
||||
template<class Engine, class Iter>
|
||||
void generate(Engine& eng, Iter first, Iter last)
|
||||
{
|
||||
return detail::generate_impl(eng, first, last, boost::is_integral<typename Engine::result_type>());
|
||||
}
|
||||
|
||||
|
||||
|
||||
template<class IntType, IntType m, class SeedSeq>
|
||||
IntType seed_one_int(SeedSeq& seq)
|
||||
{
|
||||
static const int log = ::boost::mpl::if_c<(m == 0),
|
||||
::boost::mpl::int_<(::std::numeric_limits<IntType>::digits)>,
|
||||
::boost::static_log2<m> >::type::value;
|
||||
static const int k =
|
||||
(log + ((~(static_cast<IntType>(2) << (log - 1)) & m)? 32 : 31)) / 32;
|
||||
::boost::uint_least32_t array[log / 32 + 4];
|
||||
seq.generate(&array[0], &array[0] + k + 3);
|
||||
IntType s = 0;
|
||||
for(int j = 0; j < k; ++j) {
|
||||
IntType digit = const_mod<IntType, m>::apply(IntType(array[j+3]));
|
||||
IntType mult = IntType(1) << 32*j;
|
||||
s = const_mod<IntType, m>::mult_add(mult, digit, s);
|
||||
}
|
||||
return s;
|
||||
}
|
||||
|
||||
template<class IntType, IntType m, class Iter>
|
||||
IntType get_one_int(Iter& first, Iter last)
|
||||
{
|
||||
static const int log = ::boost::mpl::if_c<(m == 0),
|
||||
::boost::mpl::int_<(::std::numeric_limits<IntType>::digits)>,
|
||||
::boost::static_log2<m> >::type::value;
|
||||
static const int k =
|
||||
(log + ((~(static_cast<IntType>(2) << (log - 1)) & m)? 32 : 31)) / 32;
|
||||
IntType s = 0;
|
||||
for(int j = 0; j < k; ++j) {
|
||||
if(first == last) {
|
||||
throw ::std::invalid_argument("Not enough elements in call to seed.");
|
||||
}
|
||||
IntType digit = const_mod<IntType, m>::apply(IntType(*first++));
|
||||
IntType mult = IntType(1) << 32*j;
|
||||
s = const_mod<IntType, m>::mult_add(mult, digit, s);
|
||||
}
|
||||
return s;
|
||||
}
|
||||
|
||||
// TODO: work in-place whenever possible
|
||||
template<int w, std::size_t n, class SeedSeq, class UIntType>
|
||||
void seed_array_int_impl(SeedSeq& seq, UIntType (&x)[n])
|
||||
{
|
||||
boost::uint_least32_t storage[((w+31)/32) * n];
|
||||
seq.generate(&storage[0], &storage[0] + ((w+31)/32) * n);
|
||||
for(std::size_t j = 0; j < n; j++) {
|
||||
UIntType val = 0;
|
||||
for(std::size_t k = 0; k < (w+31)/32; ++k) {
|
||||
val += static_cast<UIntType>(storage[(w+31)/32*j + k]) << 32*k;
|
||||
}
|
||||
x[j] = val & ::boost::low_bits_mask_t<w>::sig_bits;
|
||||
}
|
||||
}
|
||||
|
||||
template<int w, std::size_t n, class SeedSeq, class IntType>
|
||||
inline void seed_array_int_impl(SeedSeq& seq, IntType (&x)[n], boost::mpl::true_)
|
||||
{
|
||||
typedef typename boost::make_unsigned<IntType>::type unsigned_array[n];
|
||||
seed_array_int_impl<w>(seq, reinterpret_cast<unsigned_array&>(x));
|
||||
}
|
||||
|
||||
template<int w, std::size_t n, class SeedSeq, class IntType>
|
||||
inline void seed_array_int_impl(SeedSeq& seq, IntType (&x)[n], boost::mpl::false_)
|
||||
{
|
||||
seed_array_int_impl<w>(seq, x);
|
||||
}
|
||||
|
||||
template<int w, std::size_t n, class SeedSeq, class IntType>
|
||||
inline void seed_array_int(SeedSeq& seq, IntType (&x)[n])
|
||||
{
|
||||
seed_array_int_impl<w>(seq, x, boost::is_signed<IntType>());
|
||||
}
|
||||
|
||||
template<int w, std::size_t n, class Iter, class UIntType>
|
||||
void fill_array_int_impl(Iter& first, Iter last, UIntType (&x)[n])
|
||||
{
|
||||
for(std::size_t j = 0; j < n; j++) {
|
||||
UIntType val = 0;
|
||||
for(std::size_t k = 0; k < (w+31)/32; ++k) {
|
||||
if(first == last) {
|
||||
throw std::invalid_argument("Not enough elements in call to seed.");
|
||||
}
|
||||
val += static_cast<UIntType>(*first++) << 32*k;
|
||||
}
|
||||
x[j] = val & ::boost::low_bits_mask_t<w>::sig_bits;
|
||||
}
|
||||
}
|
||||
|
||||
template<int w, std::size_t n, class Iter, class IntType>
|
||||
inline void fill_array_int_impl(Iter& first, Iter last, IntType (&x)[n], boost::mpl::true_)
|
||||
{
|
||||
typedef typename boost::make_unsigned<IntType>::type unsigned_array[n];
|
||||
fill_array_int_impl<w>(first, last, reinterpret_cast<unsigned_array&>(x));
|
||||
}
|
||||
|
||||
template<int w, std::size_t n, class Iter, class IntType>
|
||||
inline void fill_array_int_impl(Iter& first, Iter last, IntType (&x)[n], boost::mpl::false_)
|
||||
{
|
||||
fill_array_int_impl<w>(first, last, x);
|
||||
}
|
||||
|
||||
template<int w, std::size_t n, class Iter, class IntType>
|
||||
inline void fill_array_int(Iter& first, Iter last, IntType (&x)[n])
|
||||
{
|
||||
fill_array_int_impl<w>(first, last, x, boost::is_signed<IntType>());
|
||||
}
|
||||
|
||||
template<int w, std::size_t n, class RealType>
|
||||
void seed_array_real_impl(const boost::uint_least32_t* storage, RealType (&x)[n])
|
||||
{
|
||||
boost::uint_least32_t mask = ~((~boost::uint_least32_t(0)) << (w%32));
|
||||
RealType two32 = 4294967296.0;
|
||||
const RealType divisor = RealType(1)/detail::pow2<RealType>(w);
|
||||
unsigned int j;
|
||||
for(j = 0; j < n; ++j) {
|
||||
RealType val = RealType(0);
|
||||
RealType mult = divisor;
|
||||
for(int k = 0; k < w/32; ++k) {
|
||||
val += *storage++ * mult;
|
||||
mult *= two32;
|
||||
}
|
||||
if(mask != 0) {
|
||||
val += (*storage++ & mask) * mult;
|
||||
}
|
||||
BOOST_ASSERT(val >= 0);
|
||||
BOOST_ASSERT(val < 1);
|
||||
x[j] = val;
|
||||
}
|
||||
}
|
||||
|
||||
template<int w, std::size_t n, class SeedSeq, class RealType>
|
||||
void seed_array_real(SeedSeq& seq, RealType (&x)[n])
|
||||
{
|
||||
using std::pow;
|
||||
boost::uint_least32_t storage[((w+31)/32) * n];
|
||||
seq.generate(&storage[0], &storage[0] + ((w+31)/32) * n);
|
||||
seed_array_real_impl<w>(storage, x);
|
||||
}
|
||||
|
||||
template<int w, std::size_t n, class Iter, class RealType>
|
||||
void fill_array_real(Iter& first, Iter last, RealType (&x)[n])
|
||||
{
|
||||
boost::uint_least32_t mask = ~((~boost::uint_least32_t(0)) << (w%32));
|
||||
RealType two32 = 4294967296.0;
|
||||
const RealType divisor = RealType(1)/detail::pow2<RealType>(w);
|
||||
unsigned int j;
|
||||
for(j = 0; j < n; ++j) {
|
||||
RealType val = RealType(0);
|
||||
RealType mult = divisor;
|
||||
for(int k = 0; k < w/32; ++k, ++first) {
|
||||
if(first == last) throw std::invalid_argument("Not enough elements in call to seed.");
|
||||
val += *first * mult;
|
||||
mult *= two32;
|
||||
}
|
||||
if(mask != 0) {
|
||||
if(first == last) throw std::invalid_argument("Not enough elements in call to seed.");
|
||||
val += (*first & mask) * mult;
|
||||
++first;
|
||||
}
|
||||
BOOST_ASSERT(val >= 0);
|
||||
BOOST_ASSERT(val < 1);
|
||||
x[j] = val;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#include <boost/random/detail/enable_warnings.hpp>
|
||||
|
||||
#endif
|
89
xs/include/boost/random/detail/signed_unsigned_tools.hpp
Normal file
89
xs/include/boost/random/detail/signed_unsigned_tools.hpp
Normal file
|
@ -0,0 +1,89 @@
|
|||
/* boost random/detail/signed_unsigned_tools.hpp header file
|
||||
*
|
||||
* Copyright Jens Maurer 2006
|
||||
* Distributed under the Boost Software License, Version 1.0. (See
|
||||
* accompanying file LICENSE_1_0.txt or copy at
|
||||
* http://www.boost.org/LICENSE_1_0.txt)
|
||||
*
|
||||
* See http://www.boost.org for most recent version including documentation.
|
||||
*/
|
||||
|
||||
#ifndef BOOST_RANDOM_DETAIL_SIGNED_UNSIGNED_TOOLS
|
||||
#define BOOST_RANDOM_DETAIL_SIGNED_UNSIGNED_TOOLS
|
||||
|
||||
#include <boost/limits.hpp>
|
||||
#include <boost/config.hpp>
|
||||
#include <boost/type_traits/make_unsigned.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace random {
|
||||
namespace detail {
|
||||
|
||||
|
||||
/*
|
||||
* Compute x - y, we know that x >= y, return an unsigned value.
|
||||
*/
|
||||
|
||||
template<class T, bool sgn = std::numeric_limits<T>::is_signed>
|
||||
struct subtract { };
|
||||
|
||||
template<class T>
|
||||
struct subtract<T, /* signed */ false>
|
||||
{
|
||||
typedef T result_type;
|
||||
result_type operator()(T x, T y) { return x - y; }
|
||||
};
|
||||
|
||||
template<class T>
|
||||
struct subtract<T, /* signed */ true>
|
||||
{
|
||||
typedef typename make_unsigned<T>::type result_type;
|
||||
result_type operator()(T x, T y)
|
||||
{
|
||||
if (y >= 0) // because x >= y, it follows that x >= 0, too
|
||||
return result_type(x) - result_type(y);
|
||||
if (x >= 0) // y < 0
|
||||
// avoid the nasty two's complement case for y == min()
|
||||
return result_type(x) + result_type(-(y+1)) + 1;
|
||||
// both x and y are negative: no signed overflow
|
||||
return result_type(x - y);
|
||||
}
|
||||
};
|
||||
|
||||
/*
|
||||
* Compute x + y, x is unsigned, result fits in type of "y".
|
||||
*/
|
||||
|
||||
template<class T1, class T2, bool sgn = std::numeric_limits<T2>::is_signed>
|
||||
struct add { };
|
||||
|
||||
template<class T1, class T2>
|
||||
struct add<T1, T2, /* signed */ false>
|
||||
{
|
||||
typedef T2 result_type;
|
||||
result_type operator()(T1 x, T2 y) { return T2(x) + y; }
|
||||
};
|
||||
|
||||
template<class T1, class T2>
|
||||
struct add<T1, T2, /* signed */ true>
|
||||
{
|
||||
typedef T2 result_type;
|
||||
result_type operator()(T1 x, T2 y)
|
||||
{
|
||||
if (y >= 0)
|
||||
return T2(x) + y;
|
||||
// y < 0
|
||||
if (x > T1(-(y+1))) // result >= 0 after subtraction
|
||||
// avoid the nasty two's complement edge case for y == min()
|
||||
return T2(x - T1(-(y+1)) - 1);
|
||||
// abs(x) < abs(y), thus T2 able to represent x
|
||||
return T2(x) + y;
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
} // namespace random
|
||||
} // namespace boost
|
||||
|
||||
#endif // BOOST_RANDOM_DETAIL_SIGNED_UNSIGNED_TOOLS
|
||||
|
76
xs/include/boost/random/detail/uniform_int_float.hpp
Normal file
76
xs/include/boost/random/detail/uniform_int_float.hpp
Normal file
|
@ -0,0 +1,76 @@
|
|||
/* boost random/detail/uniform_int_float.hpp header file
|
||||
*
|
||||
* Copyright Jens Maurer 2000-2001
|
||||
* Copyright Steven Watanabe 2011
|
||||
* Distributed under the Boost Software License, Version 1.0. (See
|
||||
* accompanying file LICENSE_1_0.txt or copy at
|
||||
* http://www.boost.org/LICENSE_1_0.txt)
|
||||
*
|
||||
* See http://www.boost.org for most recent version including documentation.
|
||||
*
|
||||
* $Id: uniform_int_float.hpp 72951 2011-07-07 04:57:37Z steven_watanabe $
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef BOOST_RANDOM_DETAIL_UNIFORM_INT_FLOAT_HPP
|
||||
#define BOOST_RANDOM_DETAIL_UNIFORM_INT_FLOAT_HPP
|
||||
|
||||
#include <boost/limits.hpp>
|
||||
#include <boost/config.hpp>
|
||||
#include <boost/integer.hpp>
|
||||
#include <boost/random/detail/config.hpp>
|
||||
#include <boost/random/detail/generator_bits.hpp>
|
||||
|
||||
#include <boost/random/detail/disable_warnings.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace random {
|
||||
namespace detail {
|
||||
|
||||
template<class URNG>
|
||||
class uniform_int_float
|
||||
{
|
||||
public:
|
||||
typedef URNG base_type;
|
||||
typedef typename base_type::result_type base_result;
|
||||
|
||||
typedef typename boost::uint_t<
|
||||
(std::numeric_limits<boost::uintmax_t>::digits <
|
||||
std::numeric_limits<base_result>::digits)?
|
||||
std::numeric_limits<boost::uintmax_t>::digits :
|
||||
std::numeric_limits<base_result>::digits
|
||||
>::fast result_type;
|
||||
|
||||
uniform_int_float(base_type& rng)
|
||||
: _rng(rng) {}
|
||||
|
||||
static result_type min BOOST_PREVENT_MACRO_SUBSTITUTION ()
|
||||
{ return 0; }
|
||||
static result_type max BOOST_PREVENT_MACRO_SUBSTITUTION ()
|
||||
{
|
||||
std::size_t digits = std::numeric_limits<result_type>::digits;
|
||||
if(detail::generator_bits<URNG>::value() < digits) {
|
||||
digits = detail::generator_bits<URNG>::value();
|
||||
}
|
||||
return (result_type(2) << (digits - 1)) - 1;
|
||||
}
|
||||
base_type& base() { return _rng; }
|
||||
const base_type& base() const { return _rng; }
|
||||
|
||||
result_type operator()()
|
||||
{
|
||||
base_result range = static_cast<base_result>((max)())+1;
|
||||
return static_cast<result_type>(_rng() * range);
|
||||
}
|
||||
|
||||
private:
|
||||
base_type& _rng;
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
} // namespace random
|
||||
} // namespace boost
|
||||
|
||||
#include <boost/random/detail/enable_warnings.hpp>
|
||||
|
||||
#endif // BOOST_RANDOM_DETAIL_UNIFORM_INT_FLOAT_HPP
|
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Reference in a new issue