21 lines · cpp
1// RUN: %clangxx -std=c++11 -fsanitize=pointer-overflow %s -o %t2// RUN: %run %t 2>&1 | FileCheck %s --implicit-check-not="runtime error:"3 4int main(int argc, char *argv[]) {5 char c;6 char *p = &c;7 unsigned long long neg_1 = -1;8 9 // CHECK: unsigned-index-expression.cpp:[[@LINE+1]]:15: runtime error: addition of unsigned offset to 0x{{.*}} overflowed to 0x{{.*}}10 char *q = p + neg_1;11 12 // CHECK: unsigned-index-expression.cpp:[[@LINE+1]]:16: runtime error: subtraction of unsigned offset from 0x{{.*}} overflowed to 0x{{.*}}13 char *q1 = p - neg_1;14 15 // CHECK: unsigned-index-expression.cpp:[[@LINE+2]]:16: runtime error: applying non-zero offset {{.*}} to null pointer16 char *n = nullptr;17 char *q2 = n - 1ULL;18 19 return 0;20}21