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Fix libc++ test experimental/algorithms/alg.random.sample/sample.pass.cpp when ran in c++11 mode 32 bits

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@296830 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Mehdi Amini
2017-03-02 22:08:42 +00:00
parent 0cbd39f03a
commit 3df9fd8924
1 changed files with 9 additions and 5 deletions
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14
test/std/experimental/algorithms/alg.random.sample/sample.pass.cpp
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@@ -58,19 +58,23 @@ void test() {
const unsigned os = Expectations::os;
SampleItem oa[os];
const int *oa1 = Expectations::oa1;
((void)oa1); // Prevent unused warning
const int *oa2 = Expectations::oa2;
((void)oa2); // Prevent unused warning
std::minstd_rand g;
SampleIterator end;
end = std::experimental::sample(PopulationIterator(ia),
PopulationIterator(ia + is),
SampleIterator(oa), os, g);
assert(end.base() - oa == std::min(os, is));
assert(std::equal(oa, oa + os, oa1));
assert(static_cast<std::size_t>(end.base() - oa) == std::min(os, is));
// sample() is deterministic but non-reproducible;
// its results can vary between implementations.
LIBCPP_ASSERT(std::equal(oa, oa + os, oa1));
end = std::experimental::sample(PopulationIterator(ia),
PopulationIterator(ia + is),
SampleIterator(oa), os, std::move(g));
assert(end.base() - oa == std::min(os, is));
assert(std::equal(oa, oa + os, oa2));
assert(static_cast<std::size_t>(end.base() - oa) == std::min(os, is));
LIBCPP_ASSERT(std::equal(oa, oa + os, oa2));
}
template <template<class...> class PopulationIteratorType, class PopulationItem,
@@ -119,7 +123,7 @@ void test_small_population() {
end = std::experimental::sample(PopulationIterator(ia),
PopulationIterator(ia + is),
SampleIterator(oa), os, g);
assert(end.base() - oa == std::min(os, is));
assert(static_cast<std::size_t>(end.base() - oa) == std::min(os, is));
assert(std::equal(oa, end.base(), oa1));
}