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Differential D107932 Diff 366656 libcxx/test/libcxx/ranges/range.nonprop.cache/ctor.copy.pass.cpp

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Show All 33 Lines	struct NotCopyConstructible {
constexpr bool operator==(NotCopyConstructible const& other) const { return x == other.x; }		constexpr bool operator==(NotCopyConstructible const& other) const { return x == other.x; }
};		};

template <class T>		template <class T>
constexpr void test() {		constexpr void test() {
using Cache = std::ranges::__non_propagating_cache<T>;		using Cache = std::ranges::__non_propagating_cache<T>;
static_assert(std::is_nothrow_copy_constructible_v<Cache>);		static_assert(std::is_nothrow_copy_constructible_v<Cache>);
Cache a;		Cache a;
a.__set(T{3});		a.__emplace(3);

// Test with direct initialization		// Test with direct initialization
{		{
Cache b(a);		Cache b(a);
assert(!b.__has_value()); // make sure we don't propagate		assert(!b.__has_value()); // make sure we don't propagate

assert(a.__has_value()); // make sure we don't "steal" from the source		assert(a.__has_value()); // make sure we don't "steal" from the source
assert(*a == T{3}); //		assert(*a == T{3}); //
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