|  | // -*- C++ -*- | 
|  | //===----------------------------------------------------------------------===// | 
|  | // | 
|  | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | 
|  | // See https://llvm.org/LICENSE.txt for license information. | 
|  | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | 
|  | // | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | #ifndef _LIBCPP_RANDOM | 
|  | #define _LIBCPP_RANDOM | 
|  |  | 
|  | /* | 
|  | random synopsis | 
|  |  | 
|  | #include <initializer_list> | 
|  |  | 
|  | namespace std | 
|  | { | 
|  | // [rand.req.urng], uniform random bit generator requirements | 
|  | template<class G> | 
|  | concept uniform_random_bit_generator = see below; // C++20 | 
|  |  | 
|  | // Engines | 
|  |  | 
|  | template <class UIntType, UIntType a, UIntType c, UIntType m> | 
|  | class linear_congruential_engine | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef UIntType result_type; | 
|  |  | 
|  | // engine characteristics | 
|  | static constexpr result_type multiplier = a; | 
|  | static constexpr result_type increment = c; | 
|  | static constexpr result_type modulus = m; | 
|  | static constexpr result_type min() { return c == 0u ? 1u: 0u;} | 
|  | static constexpr result_type max() { return m - 1u;} | 
|  | static constexpr result_type default_seed = 1u; | 
|  |  | 
|  | // constructors and seeding functions | 
|  | explicit linear_congruential_engine(result_type s = default_seed);         // before C++20 | 
|  | linear_congruential_engine() : linear_congruential_engine(default_seed) {} // C++20 | 
|  | explicit linear_congruential_engine(result_type s);                        // C++20 | 
|  | template<class Sseq> explicit linear_congruential_engine(Sseq& q); | 
|  | void seed(result_type s = default_seed); | 
|  | template<class Sseq> void seed(Sseq& q); | 
|  |  | 
|  | // generating functions | 
|  | result_type operator()(); | 
|  | void discard(unsigned long long z); | 
|  | }; | 
|  |  | 
|  | template <class UIntType, UIntType a, UIntType c, UIntType m> | 
|  | bool | 
|  | operator==(const linear_congruential_engine<UIntType, a, c, m>& x, | 
|  | const linear_congruential_engine<UIntType, a, c, m>& y); | 
|  |  | 
|  | template <class UIntType, UIntType a, UIntType c, UIntType m> | 
|  | bool | 
|  | operator!=(const linear_congruential_engine<UIntType, a, c, m>& x, | 
|  | const linear_congruential_engine<UIntType, a, c, m>& y); | 
|  |  | 
|  | template <class charT, class traits, | 
|  | class UIntType, UIntType a, UIntType c, UIntType m> | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const linear_congruential_engine<UIntType, a, c, m>& x); | 
|  |  | 
|  | template <class charT, class traits, | 
|  | class UIntType, UIntType a, UIntType c, UIntType m> | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | linear_congruential_engine<UIntType, a, c, m>& x); | 
|  |  | 
|  | template <class UIntType, size_t w, size_t n, size_t m, size_t r, | 
|  | UIntType a, size_t u, UIntType d, size_t s, | 
|  | UIntType b, size_t t, UIntType c, size_t l, UIntType f> | 
|  | class mersenne_twister_engine | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef UIntType result_type; | 
|  |  | 
|  | // engine characteristics | 
|  | static constexpr size_t word_size = w; | 
|  | static constexpr size_t state_size = n; | 
|  | static constexpr size_t shift_size = m; | 
|  | static constexpr size_t mask_bits = r; | 
|  | static constexpr result_type xor_mask = a; | 
|  | static constexpr size_t tempering_u = u; | 
|  | static constexpr result_type tempering_d = d; | 
|  | static constexpr size_t tempering_s = s; | 
|  | static constexpr result_type tempering_b = b; | 
|  | static constexpr size_t tempering_t = t; | 
|  | static constexpr result_type tempering_c = c; | 
|  | static constexpr size_t tempering_l = l; | 
|  | static constexpr result_type initialization_multiplier = f; | 
|  | static constexpr result_type min () { return 0; } | 
|  | static constexpr result_type max() { return 2^w - 1; } | 
|  | static constexpr result_type default_seed = 5489u; | 
|  |  | 
|  | // constructors and seeding functions | 
|  | explicit mersenne_twister_engine(result_type s = default_seed);      // before C++20 | 
|  | mersenne_twister_engine() : mersenne_twister_engine(default_seed) {} // C++20 | 
|  | explicit mersenne_twister_engine(result_type s);                     // C++20 | 
|  | template<class Sseq> explicit mersenne_twister_engine(Sseq& q); | 
|  | void seed(result_type value = default_seed); | 
|  | template<class Sseq> void seed(Sseq& q); | 
|  |  | 
|  | // generating functions | 
|  | result_type operator()(); | 
|  | void discard(unsigned long long z); | 
|  | }; | 
|  |  | 
|  | template <class UIntType, size_t w, size_t n, size_t m, size_t r, | 
|  | UIntType a, size_t u, UIntType d, size_t s, | 
|  | UIntType b, size_t t, UIntType c, size_t l, UIntType f> | 
|  | bool | 
|  | operator==( | 
|  | const mersenne_twister_engine<UIntType, w, n, m, r, a, u, d, s, b, t, c, l, f>& x, | 
|  | const mersenne_twister_engine<UIntType, w, n, m, r, a, u, d, s, b, t, c, l, f>& y); | 
|  |  | 
|  | template <class UIntType, size_t w, size_t n, size_t m, size_t r, | 
|  | UIntType a, size_t u, UIntType d, size_t s, | 
|  | UIntType b, size_t t, UIntType c, size_t l, UIntType f> | 
|  | bool | 
|  | operator!=( | 
|  | const mersenne_twister_engine<UIntType, w, n, m, r, a, u, d, s, b, t, c, l, f>& x, | 
|  | const mersenne_twister_engine<UIntType, w, n, m, r, a, u, d, s, b, t, c, l, f>& y); | 
|  |  | 
|  | template <class charT, class traits, | 
|  | class UIntType, size_t w, size_t n, size_t m, size_t r, | 
|  | UIntType a, size_t u, UIntType d, size_t s, | 
|  | UIntType b, size_t t, UIntType c, size_t l, UIntType f> | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const mersenne_twister_engine<UIntType, w, n, m, r, a, u, d, s, b, t, c, l, f>& x); | 
|  |  | 
|  | template <class charT, class traits, | 
|  | class UIntType, size_t w, size_t n, size_t m, size_t r, | 
|  | UIntType a, size_t u, UIntType d, size_t s, | 
|  | UIntType b, size_t t, UIntType c, size_t l, UIntType f> | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | mersenne_twister_engine<UIntType, w, n, m, r, a, u, d, s, b, t, c, l, f>& x); | 
|  |  | 
|  | template<class UIntType, size_t w, size_t s, size_t r> | 
|  | class subtract_with_carry_engine | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef UIntType result_type; | 
|  |  | 
|  | // engine characteristics | 
|  | static constexpr size_t word_size = w; | 
|  | static constexpr size_t short_lag = s; | 
|  | static constexpr size_t long_lag = r; | 
|  | static constexpr result_type min() { return 0; } | 
|  | static constexpr result_type max() { return m-1; } | 
|  | static constexpr result_type default_seed = 19780503u; | 
|  |  | 
|  | // constructors and seeding functions | 
|  | explicit subtract_with_carry_engine(result_type value = default_seed);     // before C++20 | 
|  | subtract_with_carry_engine() : subtract_with_carry_engine(default_seed) {} // C++20 | 
|  | explicit subtract_with_carry_engine(result_type value);                    // C++20 | 
|  | template<class Sseq> explicit subtract_with_carry_engine(Sseq& q); | 
|  | void seed(result_type value = default_seed); | 
|  | template<class Sseq> void seed(Sseq& q); | 
|  |  | 
|  | // generating functions | 
|  | result_type operator()(); | 
|  | void discard(unsigned long long z); | 
|  | }; | 
|  |  | 
|  | template<class UIntType, size_t w, size_t s, size_t r> | 
|  | bool | 
|  | operator==( | 
|  | const subtract_with_carry_engine<UIntType, w, s, r>& x, | 
|  | const subtract_with_carry_engine<UIntType, w, s, r>& y); | 
|  |  | 
|  | template<class UIntType, size_t w, size_t s, size_t r> | 
|  | bool | 
|  | operator!=( | 
|  | const subtract_with_carry_engine<UIntType, w, s, r>& x, | 
|  | const subtract_with_carry_engine<UIntType, w, s, r>& y); | 
|  |  | 
|  | template <class charT, class traits, | 
|  | class UIntType, size_t w, size_t s, size_t r> | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const subtract_with_carry_engine<UIntType, w, s, r>& x); | 
|  |  | 
|  | template <class charT, class traits, | 
|  | class UIntType, size_t w, size_t s, size_t r> | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | subtract_with_carry_engine<UIntType, w, s, r>& x); | 
|  |  | 
|  | template<class Engine, size_t p, size_t r> | 
|  | class discard_block_engine | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef typename Engine::result_type result_type; | 
|  |  | 
|  | // engine characteristics | 
|  | static constexpr size_t block_size = p; | 
|  | static constexpr size_t used_block = r; | 
|  | static constexpr result_type min() { return Engine::min(); } | 
|  | static constexpr result_type max() { return Engine::max(); } | 
|  |  | 
|  | // constructors and seeding functions | 
|  | discard_block_engine(); | 
|  | explicit discard_block_engine(const Engine& e); | 
|  | explicit discard_block_engine(Engine&& e); | 
|  | explicit discard_block_engine(result_type s); | 
|  | template<class Sseq> explicit discard_block_engine(Sseq& q); | 
|  | void seed(); | 
|  | void seed(result_type s); | 
|  | template<class Sseq> void seed(Sseq& q); | 
|  |  | 
|  | // generating functions | 
|  | result_type operator()(); | 
|  | void discard(unsigned long long z); | 
|  |  | 
|  | // property functions | 
|  | const Engine& base() const noexcept; | 
|  | }; | 
|  |  | 
|  | template<class Engine, size_t p, size_t r> | 
|  | bool | 
|  | operator==( | 
|  | const discard_block_engine<Engine, p, r>& x, | 
|  | const discard_block_engine<Engine, p, r>& y); | 
|  |  | 
|  | template<class Engine, size_t p, size_t r> | 
|  | bool | 
|  | operator!=( | 
|  | const discard_block_engine<Engine, p, r>& x, | 
|  | const discard_block_engine<Engine, p, r>& y); | 
|  |  | 
|  | template <class charT, class traits, | 
|  | class Engine, size_t p, size_t r> | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const discard_block_engine<Engine, p, r>& x); | 
|  |  | 
|  | template <class charT, class traits, | 
|  | class Engine, size_t p, size_t r> | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | discard_block_engine<Engine, p, r>& x); | 
|  |  | 
|  | template<class Engine, size_t w, class UIntType> | 
|  | class independent_bits_engine | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef UIntType result_type; | 
|  |  | 
|  | // engine characteristics | 
|  | static constexpr result_type min() { return 0; } | 
|  | static constexpr result_type max() { return 2^w - 1; } | 
|  |  | 
|  | // constructors and seeding functions | 
|  | independent_bits_engine(); | 
|  | explicit independent_bits_engine(const Engine& e); | 
|  | explicit independent_bits_engine(Engine&& e); | 
|  | explicit independent_bits_engine(result_type s); | 
|  | template<class Sseq> explicit independent_bits_engine(Sseq& q); | 
|  | void seed(); | 
|  | void seed(result_type s); | 
|  | template<class Sseq> void seed(Sseq& q); | 
|  |  | 
|  | // generating functions | 
|  | result_type operator()(); void discard(unsigned long long z); | 
|  |  | 
|  | // property functions | 
|  | const Engine& base() const noexcept; | 
|  | }; | 
|  |  | 
|  | template<class Engine, size_t w, class UIntType> | 
|  | bool | 
|  | operator==( | 
|  | const independent_bits_engine<Engine, w, UIntType>& x, | 
|  | const independent_bits_engine<Engine, w, UIntType>& y); | 
|  |  | 
|  | template<class Engine, size_t w, class UIntType> | 
|  | bool | 
|  | operator!=( | 
|  | const independent_bits_engine<Engine, w, UIntType>& x, | 
|  | const independent_bits_engine<Engine, w, UIntType>& y); | 
|  |  | 
|  | template <class charT, class traits, | 
|  | class Engine, size_t w, class UIntType> | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const independent_bits_engine<Engine, w, UIntType>& x); | 
|  |  | 
|  | template <class charT, class traits, | 
|  | class Engine, size_t w, class UIntType> | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | independent_bits_engine<Engine, w, UIntType>& x); | 
|  |  | 
|  | template<class Engine, size_t k> | 
|  | class shuffle_order_engine | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef typename Engine::result_type result_type; | 
|  |  | 
|  | // engine characteristics | 
|  | static constexpr size_t table_size = k; | 
|  | static constexpr result_type min() { return Engine::min; } | 
|  | static constexpr result_type max() { return Engine::max; } | 
|  |  | 
|  | // constructors and seeding functions | 
|  | shuffle_order_engine(); | 
|  | explicit shuffle_order_engine(const Engine& e); | 
|  | explicit shuffle_order_engine(Engine&& e); | 
|  | explicit shuffle_order_engine(result_type s); | 
|  | template<class Sseq> explicit shuffle_order_engine(Sseq& q); | 
|  | void seed(); | 
|  | void seed(result_type s); | 
|  | template<class Sseq> void seed(Sseq& q); | 
|  |  | 
|  | // generating functions | 
|  | result_type operator()(); | 
|  | void discard(unsigned long long z); | 
|  |  | 
|  | // property functions | 
|  | const Engine& base() const noexcept; | 
|  | }; | 
|  |  | 
|  | template<class Engine, size_t k> | 
|  | bool | 
|  | operator==( | 
|  | const shuffle_order_engine<Engine, k>& x, | 
|  | const shuffle_order_engine<Engine, k>& y); | 
|  |  | 
|  | template<class Engine, size_t k> | 
|  | bool | 
|  | operator!=( | 
|  | const shuffle_order_engine<Engine, k>& x, | 
|  | const shuffle_order_engine<Engine, k>& y); | 
|  |  | 
|  | template <class charT, class traits, | 
|  | class Engine, size_t k> | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const shuffle_order_engine<Engine, k>& x); | 
|  |  | 
|  | template <class charT, class traits, | 
|  | class Engine, size_t k> | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | shuffle_order_engine<Engine, k>& x); | 
|  |  | 
|  | typedef linear_congruential_engine<uint_fast32_t, 16807, 0, 2147483647> | 
|  | minstd_rand0; | 
|  | typedef linear_congruential_engine<uint_fast32_t, 48271, 0, 2147483647> | 
|  | minstd_rand; | 
|  | typedef mersenne_twister_engine<uint_fast32_t, 32, 624, 397, 31, | 
|  | 0x9908b0df, | 
|  | 11, 0xffffffff, | 
|  | 7,  0x9d2c5680, | 
|  | 15, 0xefc60000, | 
|  | 18, 1812433253>                         mt19937; | 
|  | typedef mersenne_twister_engine<uint_fast64_t, 64, 312, 156, 31, | 
|  | 0xb5026f5aa96619e9, | 
|  | 29, 0x5555555555555555, | 
|  | 17, 0x71d67fffeda60000, | 
|  | 37, 0xfff7eee000000000, | 
|  | 43, 6364136223846793005>             mt19937_64; | 
|  | typedef subtract_with_carry_engine<uint_fast32_t, 24, 10, 24>     ranlux24_base; | 
|  | typedef subtract_with_carry_engine<uint_fast64_t, 48,  5, 12>     ranlux48_base; | 
|  | typedef discard_block_engine<ranlux24_base, 223, 23>                   ranlux24; | 
|  | typedef discard_block_engine<ranlux48_base, 389, 11>                   ranlux48; | 
|  | typedef shuffle_order_engine<minstd_rand0, 256>                         knuth_b; | 
|  | typedef minstd_rand                                       default_random_engine; | 
|  |  | 
|  | // Generators | 
|  |  | 
|  | class random_device | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef unsigned int result_type; | 
|  |  | 
|  | // generator characteristics | 
|  | static constexpr result_type min() { return numeric_limits<result_type>::min(); } | 
|  | static constexpr result_type max() { return numeric_limits<result_type>::max(); } | 
|  |  | 
|  | // constructors | 
|  | explicit random_device(const string& token = implementation-defined); // before C++20 | 
|  | random_device() : random_device(implementation-defined) {}            // C++20 | 
|  | explicit random_device(const string& token);                          // C++20 | 
|  |  | 
|  | // generating functions | 
|  | result_type operator()(); | 
|  |  | 
|  | // property functions | 
|  | double entropy() const noexcept; | 
|  |  | 
|  | // no copy functions | 
|  | random_device(const random_device& ) = delete; | 
|  | void operator=(const random_device& ) = delete; | 
|  | }; | 
|  |  | 
|  | // Utilities | 
|  |  | 
|  | class seed_seq | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef uint_least32_t result_type; | 
|  |  | 
|  | // constructors | 
|  | seed_seq(); | 
|  | template<class T> | 
|  | seed_seq(initializer_list<T> il); | 
|  | template<class InputIterator> | 
|  | seed_seq(InputIterator begin, InputIterator end); | 
|  |  | 
|  | // generating functions | 
|  | template<class RandomAccessIterator> | 
|  | void generate(RandomAccessIterator begin, RandomAccessIterator end); | 
|  |  | 
|  | // property functions | 
|  | size_t size() const; | 
|  | template<class OutputIterator> | 
|  | void param(OutputIterator dest) const; | 
|  |  | 
|  | // no copy functions | 
|  | seed_seq(const seed_seq&) = delete; | 
|  | void operator=(const seed_seq& ) = delete; | 
|  | }; | 
|  |  | 
|  | template<class RealType, size_t bits, class URNG> | 
|  | RealType generate_canonical(URNG& g); | 
|  |  | 
|  | // Distributions | 
|  |  | 
|  | template<class IntType = int> | 
|  | class uniform_int_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef IntType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef uniform_int_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(IntType a = 0, | 
|  | IntType b = numeric_limits<IntType>::max()); | 
|  |  | 
|  | result_type a() const; | 
|  | result_type b() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructors and reset functions | 
|  | explicit uniform_int_distribution(IntType a = 0, | 
|  | IntType b = numeric_limits<IntType>::max()); // before C++20 | 
|  | uniform_int_distribution() : uniform_int_distribution(0) {}                    // C++20 | 
|  | explicit uniform_int_distribution(IntType a, | 
|  | IntType b = numeric_limits<IntType>::max()); // C++20 | 
|  | explicit uniform_int_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | result_type a() const; | 
|  | result_type b() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const uniform_int_distribution& x, | 
|  | const uniform_int_distribution& y); | 
|  | friend bool operator!=(const uniform_int_distribution& x, | 
|  | const uniform_int_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const uniform_int_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | uniform_int_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class RealType = double> | 
|  | class uniform_real_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef RealType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef uniform_real_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(RealType a = 0, | 
|  | RealType b = 1); | 
|  |  | 
|  | result_type a() const; | 
|  | result_type b() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructors and reset functions | 
|  | explicit uniform_real_distribution(RealType a = 0.0, RealType b = 1.0); // before C++20 | 
|  | uniform_real_distribution() : uniform_real_distribution(0.0) {}         // C++20 | 
|  | explicit uniform_real_distribution(RealType a, RealType b = 1.0);       // C++20 | 
|  | explicit uniform_real_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | result_type a() const; | 
|  | result_type b() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const uniform_real_distribution& x, | 
|  | const uniform_real_distribution& y); | 
|  | friend bool operator!=(const uniform_real_distribution& x, | 
|  | const uniform_real_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const uniform_real_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | uniform_real_distribution& x); | 
|  | }; | 
|  |  | 
|  | class bernoulli_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef bool result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef bernoulli_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(double p = 0.5); | 
|  |  | 
|  | double p() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructors and reset functions | 
|  | explicit bernoulli_distribution(double p = 0.5);          // before C++20 | 
|  | bernoulli_distribution() : bernoulli_distribution(0.5) {} // C++20 | 
|  | explicit bernoulli_distribution(double p);                // C++20 | 
|  | explicit bernoulli_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | double p() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const bernoulli_distribution& x, | 
|  | const bernoulli_distribution& y); | 
|  | friend bool operator!=(const bernoulli_distribution& x, | 
|  | const bernoulli_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const bernoulli_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | bernoulli_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class IntType = int> | 
|  | class binomial_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef IntType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef binomial_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(IntType t = 1, double p = 0.5); | 
|  |  | 
|  | IntType t() const; | 
|  | double p() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructors and reset functions | 
|  | explicit binomial_distribution(IntType t = 1, double p = 0.5); // before C++20 | 
|  | binomial_distribution() : binomial_distribution(1) {}          // C++20 | 
|  | explicit binomial_distribution(IntType t, double p = 0.5);     // C++20 | 
|  | explicit binomial_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | IntType t() const; | 
|  | double p() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const binomial_distribution& x, | 
|  | const binomial_distribution& y); | 
|  | friend bool operator!=(const binomial_distribution& x, | 
|  | const binomial_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const binomial_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | binomial_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class IntType = int> | 
|  | class geometric_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef IntType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef geometric_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(double p = 0.5); | 
|  |  | 
|  | double p() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructors and reset functions | 
|  | explicit geometric_distribution(double p = 0.5);          // before C++20 | 
|  | geometric_distribution() : geometric_distribution(0.5) {} // C++20 | 
|  | explicit geometric_distribution(double p);                // C++20 | 
|  | explicit geometric_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | double p() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const geometric_distribution& x, | 
|  | const geometric_distribution& y); | 
|  | friend bool operator!=(const geometric_distribution& x, | 
|  | const geometric_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const geometric_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | geometric_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class IntType = int> | 
|  | class negative_binomial_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef IntType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef negative_binomial_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(result_type k = 1, double p = 0.5); | 
|  |  | 
|  | result_type k() const; | 
|  | double p() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructor and reset functions | 
|  | explicit negative_binomial_distribution(IntType k = 1, double p = 0.5); // before C++20 | 
|  | negative_binomial_distribution() : negative_binomial_distribution(1) {} // C++20 | 
|  | explicit negative_binomial_distribution(IntType k, double p = 0.5);     // C++20 | 
|  | explicit negative_binomial_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | result_type k() const; | 
|  | double p() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const negative_binomial_distribution& x, | 
|  | const negative_binomial_distribution& y); | 
|  | friend bool operator!=(const negative_binomial_distribution& x, | 
|  | const negative_binomial_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const negative_binomial_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | negative_binomial_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class IntType = int> | 
|  | class poisson_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef IntType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef poisson_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(double mean = 1.0); | 
|  |  | 
|  | double mean() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructors and reset functions | 
|  | explicit poisson_distribution(double mean = 1.0);     // before C++20 | 
|  | poisson_distribution() : poisson_distribution(1.0) {} // C++20 | 
|  | explicit poisson_distribution(double mean);           // C++20 | 
|  | explicit poisson_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | double mean() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const poisson_distribution& x, | 
|  | const poisson_distribution& y); | 
|  | friend bool operator!=(const poisson_distribution& x, | 
|  | const poisson_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const poisson_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | poisson_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class RealType = double> | 
|  | class exponential_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef RealType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef exponential_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(result_type lambda = 1.0); | 
|  |  | 
|  | result_type lambda() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructors and reset functions | 
|  | explicit exponential_distribution(RealType lambda = 1.0);     // before C++20 | 
|  | exponential_distribution() : exponential_distribution(1.0) {} // C++20 | 
|  | explicit exponential_distribution(RealType lambda);           // C++20 | 
|  | explicit exponential_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | result_type lambda() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const exponential_distribution& x, | 
|  | const exponential_distribution& y); | 
|  | friend bool operator!=(const exponential_distribution& x, | 
|  | const exponential_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const exponential_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | exponential_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class RealType = double> | 
|  | class gamma_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef RealType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef gamma_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(result_type alpha = 1, result_type beta = 1); | 
|  |  | 
|  | result_type alpha() const; | 
|  | result_type beta() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructors and reset functions | 
|  | explicit gamma_distribution(RealType alpha = 0.0, RealType beta = 1.0); // before C++20 | 
|  | gamma_distribution() : gamma_distribution(0.0) {}                       // C++20 | 
|  | explicit gamma_distribution(RealType alpha, RealType beta = 1.0);       // C++20 | 
|  | explicit gamma_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | result_type alpha() const; | 
|  | result_type beta() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const gamma_distribution& x, | 
|  | const gamma_distribution& y); | 
|  | friend bool operator!=(const gamma_distribution& x, | 
|  | const gamma_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const gamma_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | gamma_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class RealType = double> | 
|  | class weibull_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef RealType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef weibull_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(result_type alpha = 1, result_type beta = 1); | 
|  |  | 
|  | result_type a() const; | 
|  | result_type b() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructor and reset functions | 
|  | explicit weibull_distribution(RealType a = 1.0, RealType b = 1.0); // before C++20 | 
|  | weibull_distribution() : weibull_distribution(1.0) {}              // C++20 | 
|  | explicit weibull_distribution(RealType a, RealType b = 1.0);       // C++20 | 
|  | explicit weibull_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | result_type a() const; | 
|  | result_type b() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const weibull_distribution& x, | 
|  | const weibull_distribution& y); | 
|  | friend bool operator!=(const weibull_distribution& x, | 
|  | const weibull_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const weibull_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | weibull_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class RealType = double> | 
|  | class extreme_value_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef RealType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef extreme_value_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(result_type a = 0, result_type b = 1); | 
|  |  | 
|  | result_type a() const; | 
|  | result_type b() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructor and reset functions | 
|  | explicit extreme_value_distribution(RealType a = 0.0, RealType b = 1.0); // before C++20 | 
|  | extreme_value_distribution() : extreme_value_distribution(0.0) {}        // C++20 | 
|  | explicit extreme_value_distribution(RealType a, RealType b = 1.0);       // C++20 | 
|  | explicit extreme_value_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | result_type a() const; | 
|  | result_type b() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const extreme_value_distribution& x, | 
|  | const extreme_value_distribution& y); | 
|  | friend bool operator!=(const extreme_value_distribution& x, | 
|  | const extreme_value_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const extreme_value_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | extreme_value_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class RealType = double> | 
|  | class normal_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef RealType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef normal_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(result_type mean = 0, result_type stddev = 1); | 
|  |  | 
|  | result_type mean() const; | 
|  | result_type stddev() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructors and reset functions | 
|  | explicit normal_distribution(RealType mean = 0.0, RealType stddev = 1.0); // before C++20 | 
|  | normal_distribution() : normal_distribution(0.0) {}                       // C++20 | 
|  | explicit normal_distribution(RealType mean, RealType stddev = 1.0);       // C++20 | 
|  | explicit normal_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | result_type mean() const; | 
|  | result_type stddev() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const normal_distribution& x, | 
|  | const normal_distribution& y); | 
|  | friend bool operator!=(const normal_distribution& x, | 
|  | const normal_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const normal_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | normal_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class RealType = double> | 
|  | class lognormal_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef RealType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef lognormal_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(result_type m = 0, result_type s = 1); | 
|  |  | 
|  | result_type m() const; | 
|  | result_type s() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructor and reset functions | 
|  | explicit lognormal_distribution(RealType mean = 0.0, RealType stddev = 1.0); // before C++20 | 
|  | lognormal_distribution() : lognormal_distribution(0.0) {}                    // C++20 | 
|  | explicit lognormal_distribution(RealType mean, RealType stddev = 1.0);       // C++20 | 
|  | explicit lognormal_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | result_type m() const; | 
|  | result_type s() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const lognormal_distribution& x, | 
|  | const lognormal_distribution& y); | 
|  | friend bool operator!=(const lognormal_distribution& x, | 
|  | const lognormal_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const lognormal_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | lognormal_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class RealType = double> | 
|  | class chi_squared_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef RealType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef chi_squared_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(result_type n = 1); | 
|  |  | 
|  | result_type n() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructor and reset functions | 
|  | explicit chi_squared_distribution(RealType n = 1.0);          // before C++20 | 
|  | chi_squared_distribution() : chi_squared_distribution(1.0) {} // C++20 | 
|  | explicit chi_squared_distribution(RealType n);                // C++20 | 
|  | explicit chi_squared_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | result_type n() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const chi_squared_distribution& x, | 
|  | const chi_squared_distribution& y); | 
|  | friend bool operator!=(const chi_squared_distribution& x, | 
|  | const chi_squared_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const chi_squared_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | chi_squared_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class RealType = double> | 
|  | class cauchy_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef RealType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef cauchy_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(result_type a = 0, result_type b = 1); | 
|  |  | 
|  | result_type a() const; | 
|  | result_type b() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructor and reset functions | 
|  | explicit cauchy_distribution(RealType a = 0.0, RealType b = 1.0); // before C++20 | 
|  | cauchy_distribution() : cauchy_distribution(0.0) {}               // C++20 | 
|  | explicit cauchy_distribution(RealType a, RealType b = 1.0);       // C++20 | 
|  | explicit cauchy_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | result_type a() const; | 
|  | result_type b() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const cauchy_distribution& x, | 
|  | const cauchy_distribution& y); | 
|  | friend bool operator!=(const cauchy_distribution& x, | 
|  | const cauchy_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const cauchy_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | cauchy_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class RealType = double> | 
|  | class fisher_f_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef RealType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef fisher_f_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(result_type m = 1, result_type n = 1); | 
|  |  | 
|  | result_type m() const; | 
|  | result_type n() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructor and reset functions | 
|  | explicit fisher_f_distribution(RealType m = 1.0, RealType n = 1.0); // before C++20 | 
|  | fisher_f_distribution() : fisher_f_distribution(1.0) {}             // C++20 | 
|  | explicit fisher_f_distribution(RealType m, RealType n = 1.0);       // C++20 | 
|  | explicit fisher_f_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | result_type m() const; | 
|  | result_type n() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const fisher_f_distribution& x, | 
|  | const fisher_f_distribution& y); | 
|  | friend bool operator!=(const fisher_f_distribution& x, | 
|  | const fisher_f_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const fisher_f_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | fisher_f_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class RealType = double> | 
|  | class student_t_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef RealType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef student_t_distribution distribution_type; | 
|  |  | 
|  | explicit param_type(result_type n = 1); | 
|  |  | 
|  | result_type n() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructor and reset functions | 
|  | explicit student_t_distribution(RealType n = 1.0);        // before C++20 | 
|  | student_t_distribution() : student_t_distribution(1.0) {} // C++20 | 
|  | explicit student_t_distribution(RealType n);              // C++20 | 
|  | explicit student_t_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | result_type n() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const student_t_distribution& x, | 
|  | const student_t_distribution& y); | 
|  | friend bool operator!=(const student_t_distribution& x, | 
|  | const student_t_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const student_t_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | student_t_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class IntType = int> | 
|  | class discrete_distribution | 
|  | { | 
|  | public: | 
|  | // types | 
|  | typedef IntType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef discrete_distribution distribution_type; | 
|  |  | 
|  | param_type(); | 
|  | template<class InputIterator> | 
|  | param_type(InputIterator firstW, InputIterator lastW); | 
|  | param_type(initializer_list<double> wl); | 
|  | template<class UnaryOperation> | 
|  | param_type(size_t nw, double xmin, double xmax, UnaryOperation fw); | 
|  |  | 
|  | vector<double> probabilities() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructor and reset functions | 
|  | discrete_distribution(); | 
|  | template<class InputIterator> | 
|  | discrete_distribution(InputIterator firstW, InputIterator lastW); | 
|  | discrete_distribution(initializer_list<double> wl); | 
|  | template<class UnaryOperation> | 
|  | discrete_distribution(size_t nw, double xmin, double xmax, | 
|  | UnaryOperation fw); | 
|  | explicit discrete_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | vector<double> probabilities() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const discrete_distribution& x, | 
|  | const discrete_distribution& y); | 
|  | friend bool operator!=(const discrete_distribution& x, | 
|  | const discrete_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const discrete_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | discrete_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class RealType = double> | 
|  | class piecewise_constant_distribution | 
|  | { | 
|  | // types | 
|  | typedef RealType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef piecewise_constant_distribution distribution_type; | 
|  |  | 
|  | param_type(); | 
|  | template<class InputIteratorB, class InputIteratorW> | 
|  | param_type(InputIteratorB firstB, InputIteratorB lastB, | 
|  | InputIteratorW firstW); | 
|  | template<class UnaryOperation> | 
|  | param_type(initializer_list<result_type> bl, UnaryOperation fw); | 
|  | template<class UnaryOperation> | 
|  | param_type(size_t nw, result_type xmin, result_type xmax, | 
|  | UnaryOperation fw); | 
|  |  | 
|  | vector<result_type> intervals() const; | 
|  | vector<result_type> densities() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructor and reset functions | 
|  | piecewise_constant_distribution(); | 
|  | template<class InputIteratorB, class InputIteratorW> | 
|  | piecewise_constant_distribution(InputIteratorB firstB, | 
|  | InputIteratorB lastB, | 
|  | InputIteratorW firstW); | 
|  | template<class UnaryOperation> | 
|  | piecewise_constant_distribution(initializer_list<result_type> bl, | 
|  | UnaryOperation fw); | 
|  | template<class UnaryOperation> | 
|  | piecewise_constant_distribution(size_t nw, result_type xmin, | 
|  | result_type xmax, UnaryOperation fw); | 
|  | explicit piecewise_constant_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | vector<result_type> intervals() const; | 
|  | vector<result_type> densities() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const piecewise_constant_distribution& x, | 
|  | const piecewise_constant_distribution& y); | 
|  | friend bool operator!=(const piecewise_constant_distribution& x, | 
|  | const piecewise_constant_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const piecewise_constant_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | piecewise_constant_distribution& x); | 
|  | }; | 
|  |  | 
|  | template<class RealType = double> | 
|  | class piecewise_linear_distribution | 
|  | { | 
|  | // types | 
|  | typedef RealType result_type; | 
|  |  | 
|  | class param_type | 
|  | { | 
|  | public: | 
|  | typedef piecewise_linear_distribution distribution_type; | 
|  |  | 
|  | param_type(); | 
|  | template<class InputIteratorB, class InputIteratorW> | 
|  | param_type(InputIteratorB firstB, InputIteratorB lastB, | 
|  | InputIteratorW firstW); | 
|  | template<class UnaryOperation> | 
|  | param_type(initializer_list<result_type> bl, UnaryOperation fw); | 
|  | template<class UnaryOperation> | 
|  | param_type(size_t nw, result_type xmin, result_type xmax, | 
|  | UnaryOperation fw); | 
|  |  | 
|  | vector<result_type> intervals() const; | 
|  | vector<result_type> densities() const; | 
|  |  | 
|  | friend bool operator==(const param_type& x, const param_type& y); | 
|  | friend bool operator!=(const param_type& x, const param_type& y); | 
|  | }; | 
|  |  | 
|  | // constructor and reset functions | 
|  | piecewise_linear_distribution(); | 
|  | template<class InputIteratorB, class InputIteratorW> | 
|  | piecewise_linear_distribution(InputIteratorB firstB, | 
|  | InputIteratorB lastB, | 
|  | InputIteratorW firstW); | 
|  |  | 
|  | template<class UnaryOperation> | 
|  | piecewise_linear_distribution(initializer_list<result_type> bl, | 
|  | UnaryOperation fw); | 
|  |  | 
|  | template<class UnaryOperation> | 
|  | piecewise_linear_distribution(size_t nw, result_type xmin, | 
|  | result_type xmax, UnaryOperation fw); | 
|  |  | 
|  | explicit piecewise_linear_distribution(const param_type& parm); | 
|  | void reset(); | 
|  |  | 
|  | // generating functions | 
|  | template<class URNG> result_type operator()(URNG& g); | 
|  | template<class URNG> result_type operator()(URNG& g, const param_type& parm); | 
|  |  | 
|  | // property functions | 
|  | vector<result_type> intervals() const; | 
|  | vector<result_type> densities() const; | 
|  |  | 
|  | param_type param() const; | 
|  | void param(const param_type& parm); | 
|  |  | 
|  | result_type min() const; | 
|  | result_type max() const; | 
|  |  | 
|  | friend bool operator==(const piecewise_linear_distribution& x, | 
|  | const piecewise_linear_distribution& y); | 
|  | friend bool operator!=(const piecewise_linear_distribution& x, | 
|  | const piecewise_linear_distribution& y); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_ostream<charT, traits>& | 
|  | operator<<(basic_ostream<charT, traits>& os, | 
|  | const piecewise_linear_distribution& x); | 
|  |  | 
|  | template <class charT, class traits> | 
|  | friend | 
|  | basic_istream<charT, traits>& | 
|  | operator>>(basic_istream<charT, traits>& is, | 
|  | piecewise_linear_distribution& x); | 
|  | }; | 
|  |  | 
|  | } // std | 
|  | */ | 
|  |  | 
|  | #if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS) | 
|  | #  include <__cxx03/random> | 
|  | #else | 
|  | #  include <__config> | 
|  | #  include <__random/bernoulli_distribution.h> | 
|  | #  include <__random/binomial_distribution.h> | 
|  | #  include <__random/cauchy_distribution.h> | 
|  | #  include <__random/chi_squared_distribution.h> | 
|  | #  include <__random/default_random_engine.h> | 
|  | #  include <__random/discard_block_engine.h> | 
|  | #  include <__random/discrete_distribution.h> | 
|  | #  include <__random/exponential_distribution.h> | 
|  | #  include <__random/extreme_value_distribution.h> | 
|  | #  include <__random/fisher_f_distribution.h> | 
|  | #  include <__random/gamma_distribution.h> | 
|  | #  include <__random/generate_canonical.h> | 
|  | #  include <__random/geometric_distribution.h> | 
|  | #  include <__random/independent_bits_engine.h> | 
|  | #  include <__random/is_seed_sequence.h> | 
|  | #  include <__random/knuth_b.h> | 
|  | #  include <__random/linear_congruential_engine.h> | 
|  | #  include <__random/lognormal_distribution.h> | 
|  | #  include <__random/mersenne_twister_engine.h> | 
|  | #  include <__random/negative_binomial_distribution.h> | 
|  | #  include <__random/normal_distribution.h> | 
|  | #  include <__random/piecewise_constant_distribution.h> | 
|  | #  include <__random/piecewise_linear_distribution.h> | 
|  | #  include <__random/poisson_distribution.h> | 
|  | #  include <__random/random_device.h> | 
|  | #  include <__random/ranlux.h> | 
|  | #  include <__random/seed_seq.h> | 
|  | #  include <__random/shuffle_order_engine.h> | 
|  | #  include <__random/student_t_distribution.h> | 
|  | #  include <__random/subtract_with_carry_engine.h> | 
|  | #  include <__random/uniform_int_distribution.h> | 
|  | #  include <__random/uniform_random_bit_generator.h> | 
|  | #  include <__random/uniform_real_distribution.h> | 
|  | #  include <__random/weibull_distribution.h> | 
|  | #  include <version> | 
|  |  | 
|  | // standard-mandated includes | 
|  |  | 
|  | // [rand.synopsis] | 
|  | #  include <initializer_list> | 
|  |  | 
|  | #  if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) | 
|  | #    pragma GCC system_header | 
|  | #  endif | 
|  |  | 
|  | #  if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20 | 
|  | #    include <algorithm> | 
|  | #    include <climits> | 
|  | #    include <cmath> | 
|  | #    include <concepts> | 
|  | #    include <cstddef> | 
|  | #    include <cstdint> | 
|  | #    include <cstdlib> | 
|  | #    include <iosfwd> | 
|  | #    include <limits> | 
|  | #    include <numeric> | 
|  | #    include <string> | 
|  | #    include <type_traits> | 
|  | #    include <vector> | 
|  | #  endif | 
|  | #endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS) | 
|  |  | 
|  | #endif // _LIBCPP_RANDOM |