| // RUN: %clangxx -fsanitize=null %s -O3 -o %t |
| // RUN: %run %t l 2>&1 | FileCheck %s --check-prefix=CHECK-LOAD |
| // RUN: %expect_crash %run %t s 2>&1 | FileCheck %s --check-prefix=CHECK-STORE |
| // RUN: %run %t r 2>&1 | FileCheck %s --check-prefix=CHECK-REFERENCE |
| // RUN: %run %t m 2>&1 | FileCheck %s --check-prefix=CHECK-MEMBER |
| // RUN: %run %t f 2>&1 | FileCheck %s --check-prefix=CHECK-MEMFUN |
| |
| struct S { |
| int f() { return 0; } |
| int k; |
| }; |
| |
| int main(int, char **argv) { |
| int *p = 0; |
| S *s = 0; |
| |
| (void)*p; // ok! |
| |
| switch (argv[1][0]) { |
| case 'l': |
| // CHECK-LOAD: null.cpp:[[@LINE+1]]:12: runtime error: load of null pointer of type 'int' |
| return *p; |
| case 's': |
| // CHECK-STORE: null.cpp:[[@LINE+1]]:5: runtime error: store to null pointer of type 'int' |
| *p = 1; |
| break; |
| case 'r': |
| // CHECK-REFERENCE: null.cpp:[[@LINE+1]]:15: runtime error: reference binding to null pointer of type 'int' |
| {int &r = *p;} |
| break; |
| case 'm': |
| // CHECK-MEMBER: null.cpp:[[@LINE+1]]:15: runtime error: member access within null pointer of type 'S' |
| return s->k; |
| case 'f': |
| // CHECK-MEMFUN: null.cpp:[[@LINE+1]]:12: runtime error: member call on null pointer of type 'S' |
| return s->f(); |
| } |
| } |