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Mark LWG 2716 as complete - shuffle and sample disallows lvalue URNGs.

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Libc++'s implementation of shuffle and sample already support lvalue and rvalue
RNG's. This patch adds tests for both categories and marks the issue as complete.

This patch also contains drive-by change for std::experimental::sample which
improves the diagnostics produced when the correct iterator categories are
not supplied.


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@279947 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Fiselier
2016-08-28 21:55:00 +00:00
parent 113315b9a4
commit 17c38db650
6 changed files with 19 additions and 13 deletions
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2
test/std/algorithms/alg.modifying.operations/alg.random.shuffle/random_shuffle_urng.pass.cpp
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@@ -29,7 +29,7 @@ int main()
std::shuffle(ia, ia+sa, g);
LIBCPP_ASSERT(std::equal(ia, ia+sa, ia1));
assert(std::is_permutation(ia, ia+sa, ia1));
std::shuffle(ia, ia+sa, g);
std::shuffle(ia, ia+sa, std::move(g));
LIBCPP_ASSERT(std::equal(ia, ia+sa, ia2));
assert(std::is_permutation(ia, ia+sa, ia2));
}