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Add policy check that excludes unsequenced policies

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It's technically UB for the callable in an unsequenced policy to acquire a lock so we add static_assert()s to catch potential user error.
This commit is contained in:
Christian Mazakas
2023-05-01 11:58:58 -07:00
parent 615ce1e9b6
commit c52ad849ea
3 changed files with 17 additions and 4 deletions
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test/cfoa/visit_tests.cpp
+3 -3
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@@ -299,7 +299,7 @@ namespace {
thread_runner(values, [&x, &mut_visitor](boost::span<T>) {
std::atomic<std::uint64_t> num_visits{0};
x.visit_all(std::execution::par_unseq, mut_visitor(num_visits));
x.visit_all(std::execution::par, mut_visitor(num_visits));
BOOST_TEST_EQ(x.size(), num_visits);
});
}
@@ -309,7 +309,7 @@ namespace {
std::atomic<std::uint64_t> num_visits{0};
auto const& y = x;
y.visit_all(std::execution::par_unseq, const_visitor(num_visits));
y.visit_all(std::execution::par, const_visitor(num_visits));
BOOST_TEST_EQ(x.size(), num_visits);
});
}
@@ -317,7 +317,7 @@ namespace {
{
thread_runner(values, [&x, &const_visitor](boost::span<T>) {
std::atomic<std::uint64_t> num_visits{0};
x.cvisit_all(std::execution::par_unseq, const_visitor(num_visits));
x.cvisit_all(std::execution::par, const_visitor(num_visits));
BOOST_TEST_EQ(x.size(), num_visits);
});
}