clang/test/SemaCXX/warn-unsafe-buffer-usage-source-ranges.cpp

   1 // RUN: %clang_cc1 -Wno-everything -Wunsafe-buffer-usage \
   2 // RUN:            -fsafe-buffer-usage-suggestions \
   3 // RUN:            -fdiagnostics-print-source-range-info %s 2>&1 | FileCheck %s
   4
   5 void foo(int i) {
   6   int * ptr;
   7
   8   ptr++;
   9   // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  10   ptr--;
  11   // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  12   ++ptr;
  13   // CHECK: {[[@LINE-1]]:5-[[@LINE-1]]:8}
  14   --ptr;
  15   // CHECK: {[[@LINE-1]]:5-[[@LINE-1]]:8}
  16
  17
  18   ptr + 1;
  19   // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  20   2 + ptr;
  21   // CHECK: {[[@LINE-1]]:7-[[@LINE-1]]:10}
  22   ptr + i;
  23   // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  24   i + ptr;
  25   // CHECK: {[[@LINE-1]]:7-[[@LINE-1]]:10}
  26
  27
  28   ptr - 3;
  29   // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  30   ptr - i;
  31   // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  32
  33
  34   ptr += 4;
  35   // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  36   ptr += i;
  37   // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  38
  39
  40   ptr -= 5;
  41   // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  42   ptr -= i;
  43   // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  44
  45
  46   ptr[5];
  47   // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  48   5[ptr];
  49   // CHECK: {[[@LINE-1]]:5-[[@LINE-1]]:8}
  50 }