clang/test/Analysis/diagnostics/text-diagnostics.c

   1 // RUN: %clang_analyze_cc1 -analyzer-checker=core.NullDereference -analyzer-output=text -fno-caret-diagnostics %s 2>&1 | FileCheck %s
   2
   3 void testA(void) {
   4   int *p = 0;
   5   *p = 1;
   6
   7   // CHECK-LABEL: text-diagnostics.c:{{.*}}:6: warning: Dereference of null pointer (loaded from variable 'p')
   8   // CHECK-NEXT: text-diagnostics.c:[[@LINE-4]]:3: note: 'p' initialized to a null pointer value
   9   // CHECK-NEXT: text-diagnostics.c:[[@LINE-4]]:6: note: Dereference of null pointer (loaded from variable 'p')
  10 }
  11
  12 void testB(int *q) {
  13   if (q)
  14     return;
  15   *q = 1;
  16
  17   // CHECK-LABEL: text-diagnostics.c:{{.*}}:6: warning: Dereference of null pointer (loaded from variable 'q')
  18   // CHECK-NEXT: text-diagnostics.c:[[@LINE-5]]:7: note: Assuming 'q' is null
  19   // CHECK-NEXT: text-diagnostics.c:[[@LINE-6]]:3: note: Taking false branch
  20   // CHECK-NEXT: text-diagnostics.c:[[@LINE-5]]:6: note: Dereference of null pointer (loaded from variable 'q')
  21 }