| // RUN: %clang_analyze_cc1 -std=c++14 -w -analyzer-checker=core,cplusplus -analyzer-output=text -verify %s |
| |
| namespace no_crash_on_delete_dtor { |
| // We were crashing when producing diagnostics for this code, but not for the |
| // report that it currently emits. Instead, Static Analyzer was thinking that |
| // p.get()->foo() is a null dereference because it was dropping |
| // constraints over x too early and took a different branch next time |
| // we call .get(). |
| struct S { |
| void foo(); |
| ~S(); |
| }; |
| |
| struct smart_ptr { |
| int x; |
| S *s; |
| smart_ptr(S *); |
| S *get() { |
| return (x || 0) ? nullptr : s; // expected-note{{Field 'x' is 0}} |
| // expected-note@-1{{Left side of '||' is false}} |
| // expected-note@-2{{'?' condition is false}} |
| // expected-warning@-3{{Use of memory after it is freed}} |
| // expected-note@-4{{Use of memory after it is freed}} |
| } |
| }; |
| |
| void bar(smart_ptr p) { |
| delete p.get(); // expected-note{{Memory is released}} |
| p.get()->foo(); // expected-note{{Calling 'smart_ptr::get'}} |
| } |
| } // namespace no_crash_on_delete_dtor |
