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libcxx/test/std/numerics/rand/rand.adapt/rand.adapt.disc/discard.pass.cpp

53 lines
966 B
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 Engine, size_t p, size_t r>
// class discard_block_engine
// void discard(unsigned long long z);
#include <random>
#include <cassert>
void
test1()
{
std::ranlux24 e1;
std::ranlux24 e2 = e1;
assert(e1 == e2);
e1.discard(3);
assert(e1 != e2);
(void)e2();
(void)e2();
(void)e2();
assert(e1 == e2);
}
void
test2()
{
std::ranlux48 e1;
std::ranlux48 e2 = e1;
assert(e1 == e2);
e1.discard(3);
assert(e1 != e2);
(void)e2();
(void)e2();
(void)e2();
assert(e1 == e2);
}
int main()
{
test1();
test2();
}