40 lines
2.1 KiB
C++
40 lines
2.1 KiB
C++
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// RUN: %clang_cc1 %s -verify -Wsizeof-pointer-div -fsyntax-only
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template <typename Ty, int N>
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int f(Ty (&Array)[N]) {
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return sizeof(Array) / sizeof(Ty); // Should not warn
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}
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typedef int int32;
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void test(int *p, int **q) { // expected-note 6 {{pointer 'p' declared here}}
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const int *r; // expected-note {{pointer 'r' declared here}}
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int a1 = sizeof(p) / sizeof(*p); // expected-warning {{'sizeof (p)' will return the size of the pointer, not the array itself}}
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int a2 = sizeof p / sizeof *p; // expected-warning {{'sizeof p' will return the size of the pointer, not the array itself}}
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int a3 = sizeof(p) / sizeof(int); // expected-warning {{'sizeof (p)' will return the size of the pointer, not the array itself}}
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int a4 = sizeof(p) / sizeof(p[0]); // expected-warning {{'sizeof (p)' will return the size of the pointer, not the array itself}}
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int a5 = sizeof(p) / sizeof(int32); // expected-warning {{'sizeof (p)' will return the size of the pointer, not the array itself}}
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int a6 = sizeof(r) / sizeof(int); // expected-warning {{'sizeof (r)' will return the size of the pointer, not the array itself}}
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int32 *d; // expected-note 2 {{pointer 'd' declared here}}
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int a7 = sizeof(d) / sizeof(int32); // expected-warning {{'sizeof (d)' will return the size of the pointer, not the array itself}}
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int a8 = sizeof(d) / sizeof(int); // expected-warning {{'sizeof (d)' will return the size of the pointer, not the array itself}}
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int a9 = sizeof(*q) / sizeof(**q); // expected-warning {{'sizeof (*q)' will return the size of the pointer, not the array itself}}
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int a10 = sizeof(p) / sizeof(decltype(*p)); // expected-warning {{'sizeof (p)' will return the size of the pointer, not the array itself}}
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// Should not warn
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int b1 = sizeof(int *) / sizeof(int);
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int b2 = sizeof(p) / sizeof(p);
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int b3 = sizeof(*q) / sizeof(q);
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int b4 = sizeof(p) / sizeof(char);
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int arr[10];
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int c1 = sizeof(arr) / sizeof(*arr);
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int c2 = sizeof(arr) / sizeof(arr[0]);
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int c3 = sizeof(arr) / sizeof(int);
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int arr2[10][12];
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int d1 = sizeof(arr2) / sizeof(*arr2);
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}
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