| /* Test -Wsizeof-pointer-div warnings. */ |
| /* { dg-do compile } */ |
| /* { dg-options "-Wall" } */ |
| |
| int |
| f1 (int *array) |
| { |
| int i; |
| i = sizeof array / sizeof *array; /* { dg-warning "does not compute the number of array elements" } */ |
| i += sizeof array / sizeof array[0]; /* { dg-warning "does not compute the number of array elements" } */ |
| i += sizeof(array) / sizeof(*array); /* { dg-warning "does not compute the number of array elements" } */ |
| i += sizeof(array) / sizeof(array[0]); /* { dg-warning "does not compute the number of array elements" } */ |
| i += (sizeof(array)) / (sizeof(array[0])); /* { dg-warning "does not compute the number of array elements" } */ |
| i += sizeof(array) / sizeof(int); /* { dg-warning "does not compute the number of array elements" } */ |
| i += sizeof(array) / sizeof(char); |
| i += sizeof(*array) / sizeof(char); |
| i += sizeof(array[0]) / sizeof(char); |
| return i; |
| } |
| |
| int |
| f2 (void) |
| { |
| int array[10]; |
| int i; |
| i = sizeof array / sizeof *array; |
| i += sizeof array / sizeof array[0]; |
| i += sizeof(array) / sizeof(*array); |
| i += sizeof(array) / sizeof(array[0]); |
| i += (sizeof(array)) / (sizeof(array[0])); |
| i += sizeof(array) / sizeof(int); |
| i += sizeof(array) / sizeof(char); |
| i += sizeof(*array) / sizeof(char); |
| i += sizeof(array[0]) / sizeof(char); |
| return i; |
| } |
| |
| int |
| f3 (int a[]) |
| { |
| return sizeof a / sizeof *a; /* { dg-warning "Wsizeof-array-argument" } */ |
| } |