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// RUN: %clang_cl_asan -O0 %s -Fe%t
// RUN: not %run %t 2>&1 | FileCheck %s
class Parent {
public:
int field;
};
class Child : public Parent {
public:
int extra_field;
};
int main(void) {
Parent p;
Child *c = (Child*)&p; // Intentional error here!
c->extra_field = 42;
// CHECK: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
// CHECK: WRITE of size 4 at [[ADDR]] thread T0
// CHECK-NEXT: {{#0 0x[0-9a-f]* in main .*wrong_downcast_on_stack.cc}}:[[@LINE-3]]
// CHECK: [[ADDR]] is located in stack of thread T0 at offset [[OFFSET:[0-9]+]] in frame
// CHECK-NEXT: {{#0 0x[0-9a-f]* in main }}
// CHECK: 'p' <== Memory access at offset [[OFFSET]] overflows this variable
return 0;
}
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