| // RUN: %clang_analyze_cc1 -triple x86_64-unknown-unknown -analyzer-checker=alpha.security.MallocOverflow,unix -verify %s |
| // RUN: %clang_analyze_cc1 -triple x86_64-unknown-unknown -analyzer-checker=alpha.security.MallocOverflow,unix,optin.portability -DPORTABILITY -verify %s |
| typedef __typeof__(sizeof(int)) size_t; |
| extern void *malloc(size_t); |
| extern void free(void *ptr); |
| void *malloc(unsigned long s); |
| static int table_build(struct table *t) { |
| t->nentry = ((t->offset_max >> 2) + 31) / 32; |
| t->table = (unsigned *)malloc(sizeof(unsigned) * t->nentry); // expected-warning {{the computation of the size of the memory allocation may overflow}} |
| int *p = malloc(sizeof(int) * n); // no-warning |
| static int table_build_1(struct table *t) { |
| t->nentry = (sizeof(struct table) * 2 + 31) / 32; |
| t->table = (unsigned *)malloc(sizeof(unsigned) * t->nentry); // no-warning |
| return malloc(n * 0 * sizeof(int)); |
| // expected-warning@-2{{Call to 'malloc' has an allocation size of 0 bytes}} |