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


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

// RUN: %clang_cc1 -Wno-everything -Wunsafe-buffer-usage \
// RUN:            -fsafe-buffer-usage-suggestions \
// RUN:            -fdiagnostics-print-source-range-info %s 2>&1 | FileCheck %s

void foo(int i) {
  int * ptr;

  ptr++;
  // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  ptr--;
  // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  ++ptr;
  // CHECK: {[[@LINE-1]]:5-[[@LINE-1]]:8}
  --ptr;
  // CHECK: {[[@LINE-1]]:5-[[@LINE-1]]:8}


  ptr + 1;
  // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  2 + ptr;
  // CHECK: {[[@LINE-1]]:7-[[@LINE-1]]:10}
  ptr + i;
  // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  i + ptr;
  // CHECK: {[[@LINE-1]]:7-[[@LINE-1]]:10}


  ptr - 3;
  // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  ptr - i;
  // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}


  ptr += 4;
  // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  ptr += i;
  // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}


  ptr -= 5;
  // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  ptr -= i;
  // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}


  ptr[5];
  // CHECK: {[[@LINE-1]]:3-[[@LINE-1]]:6}
  5[ptr];
  // CHECK: {[[@LINE-1]]:5-[[@LINE-1]]:8}
}