diff options
Diffstat (limited to 'test/ubsan/TestCases/Pointer/unsigned-index-expression.cpp')
| -rw-r--r-- | test/ubsan/TestCases/Pointer/unsigned-index-expression.cpp | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/test/ubsan/TestCases/Pointer/unsigned-index-expression.cpp b/test/ubsan/TestCases/Pointer/unsigned-index-expression.cpp index 991374b5a6766..0002c713f8660 100644 --- a/test/ubsan/TestCases/Pointer/unsigned-index-expression.cpp +++ b/test/ubsan/TestCases/Pointer/unsigned-index-expression.cpp @@ -1,13 +1,20 @@ -// RUN: %clangxx -fsanitize=pointer-overflow %s -o %t +// RUN: %clangxx -std=c++11 -fsanitize=pointer-overflow %s -o %t // RUN: %t 2>&1 | FileCheck %s int main(int argc, char *argv[]) { char c; char *p = &c; - unsigned long long offset = -1; + unsigned long long neg_1 = -1; - // CHECK: unsigned-index-expression.cpp:[[@LINE+1]]:15: runtime error: unsigned pointer index expression result is 0x{{.*}}, preceding its base 0x{{.*}} - char *q = p + offset; + // CHECK: unsigned-index-expression.cpp:[[@LINE+1]]:15: runtime error: addition of unsigned offset to 0x{{.*}} overflowed to 0x{{.*}} + char *q = p + neg_1; + + // CHECK: unsigned-index-expression.cpp:[[@LINE+1]]:16: runtime error: subtraction of unsigned offset from 0x{{.*}} overflowed to 0x{{.*}} + char *q1 = p - neg_1; + + // CHECK: unsigned-index-expression.cpp:[[@LINE+2]]:16: runtime error: pointer index expression with base 0x{{0*}} overflowed to 0x{{.*}} + char *n = nullptr; + char *q2 = n - 1ULL; return 0; } |