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// RUN: %clang_cc1 %s -verify -Wsizeof-array-div -fsyntax-only -triple=x86_64-linux-gnu
// RUN: %clang_cc1 %s -verify -fsyntax-only -triple=x86_64-linux-gnu
template <typename Ty, int N>
int f(Ty (&Array)[N]) {
return sizeof(Array) / sizeof(Ty); // Should not warn
}
typedef int int32;
void test(void) {
int arr[12]; // expected-note 2 {{array 'arr' declared here}}
unsigned long long arr2[4];
int *p = &arr[0];
int a1 = sizeof(arr) / sizeof(*arr);
int a2 = sizeof arr / sizeof p; // expected-warning {{expression does not compute the number of elements in this array; element type is 'int', not 'int *'}}
// expected-note@-1 {{place parentheses around the 'sizeof p' expression to silence this warning}}
int a4 = sizeof arr2 / sizeof p;
int a5 = sizeof(arr) / sizeof(short); // expected-warning {{expression does not compute the number of elements in this array; element type is 'int', not 'short'}}
// expected-note@-1 {{place parentheses around the 'sizeof(short)' expression to silence this warning}}
int a6 = sizeof(arr) / sizeof(int32);
int a7 = sizeof(arr) / sizeof(int);
int a9 = sizeof(arr) / sizeof(unsigned int);
const char arr3[2] = "A";
int a10 = sizeof(arr3) / sizeof(char);
int a11 = sizeof(arr2) / (sizeof(unsigned));
int a12 = sizeof(arr) / (sizeof(short));
int arr4[10][12]; // expected-note 3 {{array 'arr4' declared here}}
int b1 = sizeof(arr4) / sizeof(arr2[12]); // expected-warning {{expression does not compute the number of elements in this array; element type is 'int [12]', not 'unsigned long long'}}
// expected-note@-1 {{place parentheses around the 'sizeof (arr2[12])' expression to silence this warning}}
int b2 = sizeof(arr4) / sizeof(int *); // expected-warning {{expression does not compute the number of elements in this array; element type is 'int [12]', not 'int *'}}
// expected-note@-1 {{place parentheses around the 'sizeof(int *)' expression to silence this warning}}
int b3 = sizeof(arr4) / sizeof(short *); // expected-warning {{expression does not compute the number of elements in this array; element type is 'int [12]', not 'short *'}}
// expected-note@-1 {{place parentheses around the 'sizeof(short *)' expression to silence this warning}}
int arr5[][5] = { // expected-note 2 {{array 'arr5' declared here}}
{1, 2, 3, 4, 5},
{6, 7, 8, 9, 0},
};
int c1 = sizeof(arr5) / sizeof(*arr5);
int c2 = sizeof(arr5) / sizeof(**arr5); // expected-warning {{expression does not compute the number of elements in this array; element type is 'int [5]', not 'int'}}
// expected-note@-1 {{place parentheses around the 'sizeof (**arr5)' expression to silence this warning}}
int c3 = sizeof(arr5) / sizeof(int); // expected-warning {{expression does not compute the number of elements in this array; element type is 'int [5]', not 'int'}}
// expected-note@-1 {{place parentheses around the 'sizeof(int)' expression to silence this warning}}
}
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