4684ddb6aa
- import libcxx - reduce targets to the one when compiled as a tools Change-Id: Iabb8427f80ff8e89463559a28bcb8b4f2bdbc496
73 lines
1.5 KiB
C++
73 lines
1.5 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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 UIntType, UIntType a, UIntType c, UIntType m>
|
|
// class linear_congruential_engine;
|
|
|
|
// void discard(unsigned long long z);
|
|
|
|
#include <random>
|
|
#include <cassert>
|
|
|
|
template <class T>
|
|
void
|
|
rand0()
|
|
{
|
|
typedef std::linear_congruential_engine<T, 16807, 0, 2147483647> E;
|
|
E e;
|
|
e.discard(9999);
|
|
assert(e() == 1043618065);
|
|
}
|
|
|
|
template <class T>
|
|
void
|
|
rand()
|
|
{
|
|
typedef std::linear_congruential_engine<T, 48271, 0, 2147483647> E;
|
|
E e;
|
|
e.discard(9999);
|
|
assert(e() == 399268537);
|
|
}
|
|
|
|
template <class T>
|
|
void
|
|
other()
|
|
{
|
|
typedef std::linear_congruential_engine<T, 48271, 123465789, 2147483647> E;
|
|
E e1;
|
|
E e2;
|
|
assert(e1 == e2);
|
|
e1.discard(1);
|
|
assert(e1 != e2);
|
|
e2();
|
|
assert(e1 == e2);
|
|
e1.discard(3);
|
|
assert(e1 != e2);
|
|
e2();
|
|
e2();
|
|
e2();
|
|
assert(e1 == e2);
|
|
}
|
|
|
|
int main()
|
|
{
|
|
rand0<unsigned int>();
|
|
rand0<unsigned long>();
|
|
rand0<unsigned long long>();
|
|
|
|
rand<unsigned int>();
|
|
rand<unsigned long>();
|
|
rand<unsigned long long>();
|
|
|
|
other<unsigned int>();
|
|
other<unsigned long>();
|
|
other<unsigned long long>();
|
|
}
|