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Differential D91292 Diff 308912 libcxx/test/std/numerics/rand/rand.eng/rand.eng.mers/ctor_result_type.pass.cpp

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libcxx/test/std/numerics/rand/rand.eng/rand.eng.mers/ctor_result_type.pass.cpp

//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
// //
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information. // See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// //
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
// <random> // <random>
// template <class UIntType, size_t w, size_t n, size_t m, size_t r, // 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 a, size_t u, UIntType d, size_t s,
// UIntType b, size_t t, UIntType c, size_t l, UIntType f> // UIntType b, size_t t, UIntType c, size_t l, UIntType f>
// class mersenne_twister_engine; // class mersenne_twister_engine;
// explicit mersenne_twister_engine(result_type s = default_seed); // 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
// Serializing/deserializing the state of the RNG requires iostreams // Serializing/deserializing the state of the RNG requires iostreams
// UNSUPPORTED: libcpp-has-no-localization // UNSUPPORTED: libcpp-has-no-localization
#include <random> #include <random>
#include <sstream> #include <sstream>
#include <cassert> #include <cassert>
#include "test_macros.h" #include "test_macros.h"
#if TEST_STD_VER >= 11
#include "make_implicit.h"
#include "test_convertible.h"
#endif
template <class T>
std::string
to_string(T const &e)
{
std::ostringstream os;
os << e;
return os.str();
}
void void
test1() test1()
{ {
const char* a = "0 1 1812433255 1900727105 1208447044 2481403966 4042607538 337614300 " const char* a = "0 1 1812433255 1900727105 1208447044 2481403966 4042607538 337614300 "
"3232553940 1018809052 3202401494 1775180719 3192392114 594215549 184016991 " "3232553940 1018809052 3202401494 1775180719 3192392114 594215549 184016991 "
"829906058 610491522 3879932251 3139825610 297902587 4075895579 2943625357 " "829906058 610491522 3879932251 3139825610 297902587 4075895579 2943625357 "
"3530655617 1423771745 2135928312 2891506774 1066338622 135451537 933040465 " "3530655617 1423771745 2135928312 2891506774 1066338622 135451537 933040465 "
▲ Show 20 Lines • Show All 85 Lines • ▼ Show 20 Linestest1()
"1708182873 2796363264 292154131 4280019913 1102652157 1185393592 " "1708182873 2796363264 292154131 4280019913 1102652157 1185393592 "
"1494991690 4270076389 2384840717 425785147 2385321880 317514772 3926962743 " "1494991690 4270076389 2384840717 425785147 2385321880 317514772 3926962743 "
"392176856 3465421709 1878853468 122662664 2958252160 1858961315 2244939588 " "392176856 3465421709 1878853468 122662664 2958252160 1858961315 2244939588 "
"2361884409 2860936803 683833250 3291277128 1686857206 1112632275 " "2361884409 2860936803 683833250 3291277128 1686857206 1112632275 "
"1200680507 3342928196 2677058150 939442136 3407104669 2906783932 " "1200680507 3342928196 2677058150 939442136 3407104669 2906783932 "
"3668048733 2030009470 1910839172 1234925283 3575831445 123595418 " "3668048733 2030009470 1910839172 1234925283 3575831445 123595418 "
"2362440495 3048484911 1796872496"; "2362440495 3048484911 1796872496";
std::mt19937 e1(0); std::mt19937 e1(0);
std::ostringstream os; assert(to_string(e1) == a);
os << e1;
assert(os.str() == a);
} }
void void
test2() test2()
{ {
const char* a = "0 1 6364136223846793007 13885033948157127961 " const char* a = "0 1 6364136223846793007 13885033948157127961 "
"15324573939901584278 12737837167382305846 15195339788985155882 " "15324573939901584278 12737837167382305846 15195339788985155882 "
"6554113247712070460 17235932740818599105 13007415075556305955 " "6554113247712070460 17235932740818599105 13007415075556305955 "
▲ Show 20 Lines • Show All 94 Lines • ▼ Show 20 Linestest2()
"6533591052147596041 1308401457054431629 17488144120120152559 " "6533591052147596041 1308401457054431629 17488144120120152559 "
"14075631579093810083 4015705597302725704 6833920126528811473 " "14075631579093810083 4015705597302725704 6833920126528811473 "
"5095302940809114298 8312250184258072842 15770605014574863643 " "5095302940809114298 8312250184258072842 15770605014574863643 "
"14091690436120485477 15763282477731738396 16394237160547425954 " "14091690436120485477 15763282477731738396 16394237160547425954 "
"5066318118328746621 13140493775100916989 6371148952471982853 " "5066318118328746621 13140493775100916989 6371148952471982853 "
"15150289760867914983 4931341382074091848 12635920082410445322 " "15150289760867914983 4931341382074091848 12635920082410445322 "
"8498109357807439006 14836776625250834986"; "8498109357807439006 14836776625250834986";
std::mt19937_64 e1(0); std::mt19937_64 e1(0);
std::ostringstream os; assert(to_string(e1) == a);
os << e1; }
assert(os.str() == a);
template <class E, typename Arg>
void test_implicit() {
#if TEST_STD_VER >= 11
#if TEST_STD_VER > 17
static_assert(test_convertible<E>(), "");
assert(E(E::default_seed) == make_implicit<E>());
#else
static_assert(!test_convertible<E>(), "");
#endif
static_assert(!test_convertible<E, Arg>(), "");
#endif
} }
int main(int, char**) int main(int, char**)
{ {
test1(); test1();
test2(); test2();
test_implicit<std::mt19937, uint_fast32_t>();
test_implicit<std::mt19937_64, uint_fast64_t>();
return 0; return 0;
} }