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Merge to upstream r225300.

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Change-Id: I2b23715db9ac129ff80aa78ad5824db0a4d6fbb3
This commit is contained in:
Dan Albert
2015-01-06 15:06:45 -08:00
parent 4385cd8d93
commit 06086258d3
4853 changed files with 3744 additions and 971 deletions
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100
test/std/numerics/rand/rand.util/rand.util.canonical/generate_canonical.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <random>
// template<class RealType, size_t bits, class URNG>
// RealType generate_canonical(URNG& g);
#include <random>
#include <cassert>
int main()
{
{
typedef std::minstd_rand0 E;
typedef float F;
E r;
F f = std::generate_canonical<F, 0>(r);
assert(f == (16807 - E::min()) / (E::max() - E::min() + F(1)));
}
{
typedef std::minstd_rand0 E;
typedef float F;
E r;
F f = std::generate_canonical<F, 1>(r);
assert(f == (16807 - E::min()) / (E::max() - E::min() + F(1)));
}
{
typedef std::minstd_rand0 E;
typedef float F;
E r;
F f = std::generate_canonical<F, std::numeric_limits<F>::digits - 1>(r);
assert(f == (16807 - E::min()) / (E::max() - E::min() + F(1)));
}
{
typedef std::minstd_rand0 E;
typedef float F;
E r;
F f = std::generate_canonical<F, std::numeric_limits<F>::digits>(r);
assert(f == (16807 - E::min()) / (E::max() - E::min() + F(1)));
}
{
typedef std::minstd_rand0 E;
typedef float F;
E r;
F f = std::generate_canonical<F, std::numeric_limits<F>::digits + 1>(r);
assert(f == (16807 - E::min()) / (E::max() - E::min() + F(1)));
}
{
typedef std::minstd_rand0 E;
typedef double F;
E r;
F f = std::generate_canonical<F, 0>(r);
assert(f == (16807 - E::min()) / (E::max() - E::min() + F(1)));
}
{
typedef std::minstd_rand0 E;
typedef double F;
E r;
F f = std::generate_canonical<F, 1>(r);
assert(f == (16807 - E::min()) / (E::max() - E::min() + F(1)));
}
{
typedef std::minstd_rand0 E;
typedef double F;
E r;
F f = std::generate_canonical<F, std::numeric_limits<F>::digits - 1>(r);
assert(f ==
(16807 - E::min() +
(282475249 - E::min()) * (E::max() - E::min() + F(1))) /
((E::max() - E::min() + F(1)) * (E::max() - E::min() + F(1))));
}
{
typedef std::minstd_rand0 E;
typedef double F;
E r;
F f = std::generate_canonical<F, std::numeric_limits<F>::digits>(r);
assert(f ==
(16807 - E::min() +
(282475249 - E::min()) * (E::max() - E::min() + F(1))) /
((E::max() - E::min() + F(1)) * (E::max() - E::min() + F(1))));
}
{
typedef std::minstd_rand0 E;
typedef double F;
E r;
F f = std::generate_canonical<F, std::numeric_limits<F>::digits + 1>(r);
assert(f ==
(16807 - E::min() +
(282475249 - E::min()) * (E::max() - E::min() + F(1))) /
((E::max() - E::min() + F(1)) * (E::max() - E::min() + F(1))));
}
}