forked from OSchip/llvm-project
88 lines
2.1 KiB
C++
88 lines
2.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <random>
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// template <class UIntType, UIntType a, UIntType c, UIntType m>
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// class linear_congruential_engine;
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// result_type operator()();
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#include <random>
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#include <cassert>
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template <class T>
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void
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randu()
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{
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typedef std::linear_congruential_engine<T, 65539, 0, 2147483648u> E;
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E e(1);
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assert(e() == 65539);
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assert(e() == 393225);
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assert(e() == 1769499);
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assert(e() == 7077969);
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assert(e() == 26542323);
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assert(e() == 95552217);
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assert(e() == 334432395);
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assert(e() == 1146624417);
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assert(e() == 1722371299);
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assert(e() == 14608041);
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assert(e() == 1766175739);
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assert(e() == 1875647473);
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}
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template <class T>
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void
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minstd()
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{
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typedef std::linear_congruential_engine<T, 16807, 0, 2147483647> E;
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E e(1);
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assert(e() == 16807);
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assert(e() == 282475249);
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assert(e() == 1622650073);
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assert(e() == 984943658);
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assert(e() == 1144108930);
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assert(e() == 470211272);
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assert(e() == 101027544);
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assert(e() == 1457850878);
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assert(e() == 1458777923);
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assert(e() == 2007237709);
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assert(e() == 823564440);
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assert(e() == 1115438165);
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}
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template <class T>
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void
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Haldir()
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{
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typedef std::linear_congruential_engine<T, 16807, 78125, 2147483647> E;
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E e(207560540);
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assert(e() == 956631177);
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assert(e() == 2037688522);
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assert(e() == 1509348670);
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assert(e() == 1546336451);
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assert(e() == 429714088);
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assert(e() == 217250280);
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}
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int main()
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{
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randu<unsigned int>();
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randu<unsigned long>();
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randu<unsigned long long>();
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minstd<unsigned int>();
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minstd<unsigned long>();
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minstd<unsigned long long>();
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Haldir<unsigned int>();
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Haldir<unsigned long>();
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Haldir<unsigned long long>();
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}
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