llvm-project/clang/test/Analysis/malloc-bodyfarms.cpp

29 lines
730 B
C++

// RUN: %clang_analyze_cc1 -fblocks -analyzer-checker core,unix -verify %s
namespace std {
typedef struct once_flag_s {
int _M_once = 0;
} once_flag;
template <class Callable, class... Args>
void call_once(once_flag &o, Callable&& func, Args&&... args);
} // namespace std
typedef __typeof(sizeof(int)) size_t;
void *malloc(size_t);
void callee() {}
void test_no_state_change_in_body_farm() {
std::once_flag flag;
call_once(flag, callee); // no-crash
malloc(1);
} // expected-warning{{Potential memory leak}}
void test_no_state_change_in_body_farm_2() {
void *p = malloc(1);
std::once_flag flag;
call_once(flag, callee); // no-crash
p = 0;
} // expected-warning{{Potential leak of memory pointed to by 'p'}}