diff options
Diffstat (limited to 'tests/auto/corelib/tools/qspan/tst_qspan.cpp')
| -rw-r--r-- | tests/auto/corelib/tools/qspan/tst_qspan.cpp | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/tests/auto/corelib/tools/qspan/tst_qspan.cpp b/tests/auto/corelib/tools/qspan/tst_qspan.cpp index 91d2ecf739..c7456ac7f2 100644 --- a/tests/auto/corelib/tools/qspan/tst_qspan.cpp +++ b/tests/auto/corelib/tools/qspan/tst_qspan.cpp @@ -141,6 +141,9 @@ private: void from_variable_size_container_impl(C &&c) const; }; +template <typename T> +const void *as_const_void(T *p) noexcept { return static_cast<const void *>(p); } + #define RETURN_IF_FAILED() \ do { if (QTest::currentTestFailed()) return; } while (false) @@ -149,7 +152,7 @@ void tst_QSpan::onlyZeroExtentSpansHaveDefaultCtors() const static_assert(std::is_nothrow_default_constructible_v<QSpan<int, 0>>); static_assert(std::is_nothrow_default_constructible_v<QSpan<const int, 0>>); static_assert(std::is_nothrow_default_constructible_v<QSpan<int>>); - static_assert(std::is_nothrow_default_constructible_v<QSpan<const int, 0>>); + static_assert(std::is_nothrow_default_constructible_v<QSpan<const int>>); QSpan<int, 0> si; check_null_span(si); @@ -173,7 +176,7 @@ void tst_QSpan::onlyZeroExtentSpansHaveDefaultCtors() const void tst_QSpan::zeroExtentSpansMaintainADataPointer() const { - int i; + int i = 0; QSpan<int, 0> si{&i, 0}; QCOMPARE(si.data(), &i); check_empty_span_incl_subspans(si); @@ -334,6 +337,8 @@ void tst_QSpan::from_container_impl(C &&c) const const auto c_data = QSpanPrivate::adl_data(c); using V = std::remove_reference_t<QSpanPrivate::range_reference_t<C>>; + constexpr auto ExpectedBytesExtent + = ExpectedExtent == q20::dynamic_extent ? q20::dynamic_extent : ExpectedExtent * sizeof(V); { QSpan si = c; // CTAD static_assert(std::is_same_v<decltype(si), QSpan<V, ExpectedExtent>>); @@ -344,6 +349,20 @@ void tst_QSpan::from_container_impl(C &&c) const check_nonempty_span(si, c_size); RETURN_IF_FAILED(); + auto bi = as_bytes(si); + static_assert(std::is_same_v<decltype(bi), QSpan<const std::byte, ExpectedBytesExtent>>); + QCOMPARE_EQ(bi.size(), si.size_bytes()); + QCOMPARE_EQ(as_const_void(bi.data()), + as_const_void(si.data())); + + if constexpr (!std::is_const_v<V>) { // e.g. std::initializer_list<int> + auto wbi = as_writable_bytes(si); + static_assert(std::is_same_v<decltype(wbi), QSpan<std::byte, ExpectedBytesExtent>>); + QCOMPARE_EQ(wbi.size(), si.size_bytes()); + QCOMPARE_EQ(as_const_void(wbi.data()), + as_const_void(si.data())); + } + QSpan<const int> sci = c; QCOMPARE_EQ(sci.size(), c_size); @@ -351,6 +370,12 @@ void tst_QSpan::from_container_impl(C &&c) const check_nonempty_span(sci, c_size); RETURN_IF_FAILED(); + + auto bci = as_bytes(sci); + static_assert(std::is_same_v<decltype(bci), QSpan<const std::byte>>); + QCOMPARE_EQ(bci.size(), sci.size_bytes()); + QCOMPARE_EQ(as_const_void(bci.data()), + as_const_void(sci.data())); } { QSpan sci = std::as_const(c); // CTAD @@ -361,6 +386,12 @@ void tst_QSpan::from_container_impl(C &&c) const check_nonempty_span(sci, c_size); RETURN_IF_FAILED(); + + auto bci = as_bytes(sci); + static_assert(std::is_same_v<decltype(bci), QSpan<const std::byte, ExpectedBytesExtent>>); + QCOMPARE_EQ(bci.size(), sci.size_bytes()); + QCOMPARE_EQ(as_const_void(bci.data()), + as_const_void(sci.data())); } } |