37     std::span<               int> s1{  arr};    // a span<               int> pointing at int.  in checkCV()
38     std::span<const          int> s2{ carr};    // a span<const          int> pointing at const int.  in checkCV()
39 …std::span<      volatile int> s3{ varr};    // a span<      volatile int> pointing at volatile int.  in checkCV()
40 …std::span<const volatile int> s4{cvarr};    // a span<const volatile int> pointing at const volati…  in checkCV()
46     std::span<               int,3> s1{  arr};  // a span<               int> pointing at int.  in checkCV()
47     std::span<const          int,3> s2{ carr};  // a span<const          int> pointing at const int.  in checkCV()
48 …std::span<      volatile int,3> s3{ varr};  // a span<      volatile int> pointing at volatile int.  in checkCV()
49 …std::span<const volatile int,3> s4{cvarr};  // a span<const volatile int> pointing at const volati…  in checkCV()
56     std::span<const          int> s1{ arr};     // a span<const          int> pointing at int.  in checkCV()
57     std::span<      volatile int> s2{ arr};     // a span<      volatile int> pointing at int.  in checkCV()
58     std::span<      volatile int> s3{ arr};     // a span<      volatile int> pointing at const int.  in checkCV()
59     std::span<const volatile int> s4{ arr};     // a span<const volatile int> pointing at int.  in checkCV()
60     std::span<const volatile int> s5{carr};     // a span<const volatile int> pointing at const int.  in checkCV()
61 …std::span<const volatile int> s6{varr};     // a span<const volatile int> pointing at volatile int.  in checkCV()
67     std::span<const          int,3> s1{ arr};   // a span<const          int> pointing at int.  in checkCV()
68     std::span<      volatile int,3> s2{ arr};   // a span<      volatile int> pointing at int.  in checkCV()
69     std::span<      volatile int,3> s3{ arr};   // a span<      volatile int> pointing at const int.  in checkCV()
70     std::span<const volatile int,3> s4{ arr};   // a span<const volatile int> pointing at int.  in checkCV()
71     std::span<const volatile int,3> s5{carr};   // a span<const volatile int> pointing at const int.  in checkCV()
72 …std::span<const volatile int,3> s6{varr};   // a span<const volatile int> pointing at volatile int.  in checkCV()
82     ASSERT_NOEXCEPT(std::span<T>{val});  in testSpan()
83     ASSERT_NOEXCEPT(std::span<T, 2>{val});  in testSpan()
84     ASSERT_NOEXCEPT(std::span<const T>{val});  in testSpan()
85     ASSERT_NOEXCEPT(std::span<const T, 2>{val});  in testSpan()
87     std::span<T> s1 = val;  in testSpan()
88     std::span<T, 2> s2 = val;  in testSpan()
89     std::span<const T> s3 = val;  in testSpan()
90     std::span<const T, 2> s4 = val;  in testSpan()
96     std::span<const int> s5 = {{1,2}};  in testSpan()
97     std::span<const int, 2> s6 = {{1,2}};  in testSpan()