compiler-rt/test/ubsan_minimal/TestCases/nullptr-and-nonzero-offset.c

   1 // RUN: %clang   -fsanitize=pointer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="pointer-overflow"
   2 // RUN: %clangxx -x c++ -fsanitize=pointer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="pointer-overflow"
   3
   4 #include <stdlib.h>
   5
   6 int main(int argc, char *argv[]) {
   7   char *base, *result;
   8
   9   base = (char *)0;
  10   result = base + 0;
  11   // CHECK-NOT: pointer-overflow
  12
  13   base = (char *)0;
  14   result = base + 1;
  15   // CHECK: pointer-overflow by 0x{{[[:xdigit:]]+$}}
  16
  17   base = (char *)1;
  18   result = base - 1;
  19   // CHECK: pointer-overflow by 0x{{[[:xdigit:]]+$}}
  20
  21   return 0;
  22 }