46     static_assert(testConstexprSpan(std::span<int>(), nullptr),         "");  in main()
47     static_assert(testConstexprSpan(std::span<long>(), nullptr),        "");  in main()
48     static_assert(testConstexprSpan(std::span<double>(), nullptr),      "");  in main()
49     static_assert(testConstexprSpan(std::span<A>(), nullptr),           "");  in main()
50     static_assert(testConstexprSpan(std::span<std::string>(), nullptr), "");  in main()
52     static_assert(testConstexprSpan(std::span<const int>(iArr1, 1), iArr1), "");  in main()
53     static_assert(testConstexprSpan(std::span<const int>(iArr1, 2), iArr1), "");  in main()
54     static_assert(testConstexprSpan(std::span<const int>(iArr1, 3), iArr1), "");  in main()
55     static_assert(testConstexprSpan(std::span<const int>(iArr1, 4), iArr1), "");  in main()
57     static_assert(testConstexprSpan(std::span<const int>(iArr1 + 1, 1), iArr1 + 1), "");  in main()
58     static_assert(testConstexprSpan(std::span<const int>(iArr1 + 2, 2), iArr1 + 2), "");  in main()
59     static_assert(testConstexprSpan(std::span<const int>(iArr1 + 3, 3), iArr1 + 3), "");  in main()
60     static_assert(testConstexprSpan(std::span<const int>(iArr1 + 4, 4), iArr1 + 4), "");  in main()
63     static_assert(testConstexprSpan(std::span<int, 0>(), nullptr),         "");  in main()
64     static_assert(testConstexprSpan(std::span<long, 0>(), nullptr),        "");  in main()
65     static_assert(testConstexprSpan(std::span<double, 0>(), nullptr),      "");  in main()
66     static_assert(testConstexprSpan(std::span<A, 0>(), nullptr),           "");  in main()
67     static_assert(testConstexprSpan(std::span<std::string, 0>(), nullptr), "");  in main()
69     static_assert(testConstexprSpan(std::span<const int, 1>(iArr1, 1), iArr1), "");  in main()
70     static_assert(testConstexprSpan(std::span<const int, 2>(iArr1, 2), iArr1), "");  in main()
71     static_assert(testConstexprSpan(std::span<const int, 3>(iArr1, 3), iArr1), "");  in main()
72     static_assert(testConstexprSpan(std::span<const int, 4>(iArr1, 4), iArr1), "");  in main()
74     static_assert(testConstexprSpan(std::span<const int, 1>(iArr1 + 1, 1), iArr1 + 1), "");  in main()
75     static_assert(testConstexprSpan(std::span<const int, 2>(iArr1 + 2, 2), iArr1 + 2), "");  in main()
76     static_assert(testConstexprSpan(std::span<const int, 3>(iArr1 + 3, 3), iArr1 + 3), "");  in main()
77     static_assert(testConstexprSpan(std::span<const int, 4>(iArr1 + 4, 4), iArr1 + 4), "");  in main()
81     testRuntimeSpan(std::span<int>(), nullptr);  in main()
82     testRuntimeSpan(std::span<long>(), nullptr);  in main()
83     testRuntimeSpan(std::span<double>(), nullptr);  in main()
84     testRuntimeSpan(std::span<A>(), nullptr);  in main()
85     testRuntimeSpan(std::span<std::string>(), nullptr);  in main()
87     testRuntimeSpan(std::span<int>(iArr2, 1), iArr2);  in main()
88     testRuntimeSpan(std::span<int>(iArr2, 2), iArr2);  in main()
89     testRuntimeSpan(std::span<int>(iArr2, 3), iArr2);  in main()
90     testRuntimeSpan(std::span<int>(iArr2, 4), iArr2);  in main()
92     testRuntimeSpan(std::span<int>(iArr2 + 1, 1), iArr2 + 1);  in main()
93     testRuntimeSpan(std::span<int>(iArr2 + 2, 2), iArr2 + 2);  in main()
94     testRuntimeSpan(std::span<int>(iArr2 + 3, 3), iArr2 + 3);  in main()
95     testRuntimeSpan(std::span<int>(iArr2 + 4, 4), iArr2 + 4);  in main()
98     testRuntimeSpan(std::span<int, 0>(), nullptr);  in main()
99     testRuntimeSpan(std::span<long, 0>(), nullptr);  in main()
100     testRuntimeSpan(std::span<double, 0>(), nullptr);  in main()
101     testRuntimeSpan(std::span<A, 0>(), nullptr);  in main()
102     testRuntimeSpan(std::span<std::string, 0>(), nullptr);  in main()
104     testRuntimeSpan(std::span<int, 1>(iArr2, 1), iArr2);  in main()
105     testRuntimeSpan(std::span<int, 2>(iArr2, 2), iArr2);  in main()
106     testRuntimeSpan(std::span<int, 3>(iArr2, 3), iArr2);  in main()
107     testRuntimeSpan(std::span<int, 4>(iArr2, 4), iArr2);  in main()
109     testRuntimeSpan(std::span<int, 1>(iArr2 + 1, 1), iArr2 + 1);  in main()
110     testRuntimeSpan(std::span<int, 2>(iArr2 + 2, 2), iArr2 + 2);  in main()
111     testRuntimeSpan(std::span<int, 3>(iArr2 + 3, 3), iArr2 + 3);  in main()
112     testRuntimeSpan(std::span<int, 4>(iArr2 + 4, 4), iArr2 + 4);  in main()
116     testRuntimeSpan(std::span<std::string>(&s, 1), &s);  in main()
117     testRuntimeSpan(std::span<std::string, 1>(&s, 1), &s);  in main()