28     std::span<               int>   sp;  in checkCV()
30     std::span<      volatile int>  vsp;  in checkCV()
33     std::span<               int, 0>   sp0;  in checkCV()
35     std::span<      volatile int, 0>  vsp0;  in checkCV()
40         std::span<const          int> s1{  sp}; // a span<const          int> pointing at int.  in checkCV()
41         std::span<      volatile int> s2{  sp}; // a span<      volatile int> pointing at int.  in checkCV()
42         std::span<const volatile int> s3{  sp}; // a span<const volatile int> pointing at int.  in checkCV()
43 …    std::span<const volatile int> s4{ vsp}; // a span<const volatile int> pointing at volatile int.  in checkCV()
49         std::span<const          int, 0> s1{  sp0}; // a span<const          int> pointing at int.  in checkCV()
50         std::span<      volatile int, 0> s2{  sp0}; // a span<      volatile int> pointing at int.  in checkCV()
51         std::span<const volatile int, 0> s3{  sp0}; // a span<const volatile int> pointing at int.  in checkCV()
52 …std::span<const volatile int, 0> s4{ vsp0}; // a span<const volatile int> pointing at volatile int.  in checkCV()
58         std::span<const          int> s1{  sp0};    // a span<const          int> pointing at int.  in checkCV()
59         std::span<      volatile int> s2{  sp0};    // a span<      volatile int> pointing at int.  in checkCV()
60         std::span<const volatile int> s3{  sp0};    // a span<const volatile int> pointing at int.  in checkCV()
61 …std::span<const volatile int> s4{ vsp0};    // a span<const volatile int> pointing at volatile int.  in checkCV()
72     std::span<T>    s0{};  in testConstexprSpan()
73     std::span<T, 0> s1{};  in testConstexprSpan()
74     std::span<T>    s2(s1); // static -> dynamic  in testConstexprSpan()
75     ASSERT_NOEXCEPT(std::span<T>   {s0});  in testConstexprSpan()
76     ASSERT_NOEXCEPT(std::span<T, 0>{s1});  in testConstexprSpan()
77     ASSERT_NOEXCEPT(std::span<T>   {s1});  in testConstexprSpan()
88     std::span<T>    s0{};  in testRuntimeSpan()
89     std::span<T, 0> s1{};  in testRuntimeSpan()
90     std::span<T>    s2(s1); // static -> dynamic  in testRuntimeSpan()
91     ASSERT_NOEXCEPT(std::span<T>   {s0});  in testRuntimeSpan()
92     ASSERT_NOEXCEPT(std::span<T, 0>{s1});  in testRuntimeSpan()
93     ASSERT_NOEXCEPT(std::span<T>   {s1});  in testRuntimeSpan()