Add test 18.

6 files changed, 925 insertions, 1 deletions

diff --git a/test/Makefile b/test/Makefile
index ce81ac9..ebfa2b3 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -16,7 +16,8 @@ TESTS14 = test14-01 test14-02 test14-03 test14-04
 TESTS15 = test15-01 test15-02 test15-03 test15-04
 TESTS16 = test16-01 test16-02 test16-03 test16-04
 TESTS17 = test17-01 test17-02 test17-03 test17-04
-ALLTESTS = test01 test02 test03 test04 test05 test06 test07 test08 test09 test10 test11 test12 test13 test14 test15 test16 test17 ${TESTS01} ${TESTS02} ${TESTS03} ${TESTS04} ${TESTS05} ${TESTS06} ${TESTS07} ${TESTS08} ${TESTS09} ${TESTS10} ${TESTS11} ${TESTS12} ${TESTS13} ${TESTS14} ${TESTS15} ${TESTS16} ${TESTS17}
+TESTS18 = test18-01 test18-02 test18-03 test18-04
+ALLTESTS = test01 test02 test03 test04 test05 test06 test07 test08 test09 test10 test11 test12 test13 test14 test15 test16 test17 test18 ${TESTS01} ${TESTS02} ${TESTS03} ${TESTS04} ${TESTS05} ${TESTS06} ${TESTS07} ${TESTS08} ${TESTS09} ${TESTS10} ${TESTS11} ${TESTS12} ${TESTS13} ${TESTS14} ${TESTS15} ${TESTS16} ${TESTS17} ${TESTS18}
 
 .PHONY: ${ALLTESTS} ${CRASHES} all crashes
 
@@ -200,6 +201,16 @@ test17-03:
 test17-04:
 	$(call CMD,detectnullpointers,test17.c,test17-04.txt)
 
+test18: ${TESTS18}
+test18-01:
+	$(call CMDXX,dump,test18.cpp,test18-01.txt)
+test18-02:
+	$(call CMDXX,findargs,test18.cpp,test18-02.txt)
+test18-03:
+	$(call CMDXX,dumpnullpointers,test18.cpp,test18-03.txt)
+test18-04:
+	$(call CMDXX,detectnullpointers,test18.cpp,test18-04.txt)
+
 crashtest01:
 	$(call CMDXX,dump,crashtest01.h,crashtest01-01.txt)
 crashtest02:
diff --git a/test/test18-01.txt b/test/test18-01.txt
new file mode 100644
index 0000000..bcb9aeb
--- /dev/null
+++ b/test/test18-01.txt
@@ -0,0 +1,616 @@
+function_decl func1 test18.cpp 8:5
+- isPublic: 1
+ function_type - function type
+  integer_type - function return type
+  - precisionBits: 32
+  - signed
+   type_decl int <built-in> 0:0 - type name
+   - isAutogenerated: 1
+   integer_cst 32 - type size
+   integer_cst -2147483648 - min value
+   integer_cst 2147483647 - max value
+  tree_list - arg types
+   pointer_type - value
+    record_type - nested type
+     type_decl Data1 test18.cpp 1:8 - type name
+     - isAutogenerated: 1
+     field_decl val test18.cpp 3:9 - field
+     - signed
+      integer_cst 32 - decl size
+     type_decl Data1 test18.cpp 2:1 - field
+     - isAutogenerated: 1
+   tree_list - chain
+    pointer_type - value
+     record_type - nested type
+      type_decl Data1 test18.cpp 1:8 - type name
+      - isAutogenerated: 1
+      field_decl val test18.cpp 3:9 - field
+      - signed
+       integer_cst 32 - decl size
+      type_decl Data1 test18.cpp 2:1 - field
+      - isAutogenerated: 1
+    tree_list - chain
+     void_type - value
+      type_decl void <built-in> 0:0 - type name
+      - isAutogenerated: 1
+ result_decl test18.cpp 8:49 - function result
+ - isAutogenerated: 1
+  integer_type - result type
+  - precisionBits: 32
+  - signed
+   type_decl int <built-in> 0:0 - type name
+   - isAutogenerated: 1
+   integer_cst 32 - type size
+   integer_cst -2147483648 - min value
+   integer_cst 2147483647 - max value
+  integer_cst 32 - decl size
+ - isUsed: 1
+ parm_decl ptr1 test18.cpp 8:25 - argument
+  pointer_type - decl type
+   record_type - nested type
+    type_decl Data1 test18.cpp 1:8 - type name
+    - isAutogenerated: 1
+    field_decl val test18.cpp 3:9 - field
+    - signed
+     integer_cst 32 - decl size
+    type_decl Data1 test18.cpp 2:1 - field
+    - isAutogenerated: 1
+  integer_cst 64 - parm size
+ parm_decl ptr2 test18.cpp 8:45 - argument
+  pointer_type - decl type
+   record_type - nested type
+    type_decl Data1 test18.cpp 1:8 - type name
+    - isAutogenerated: 1
+    field_decl val test18.cpp 3:9 - field
+    - signed
+     integer_cst 32 - decl size
+    type_decl Data1 test18.cpp 2:1 - field
+    - isAutogenerated: 1
+  integer_cst 64 - parm size
+ statement_list - code
+  if_stmt test18.cpp 10:5 - statement
+   eq_expr - condition
+    - isUsed: 1
+    parm_decl ptr1 test18.cpp 8:25 - operand
+     pointer_type - decl type
+      record_type - nested type
+       type_decl Data1 test18.cpp 1:8 - type name
+       - isAutogenerated: 1
+       field_decl val test18.cpp 3:9 - field
+       - signed
+        integer_cst 32 - decl size
+       type_decl Data1 test18.cpp 2:1 - field
+       - isAutogenerated: 1
+     integer_cst 64 - parm size
+    integer_cst 0 - operand
+   return_expr test18.cpp 11:17 - then
+    init_expr - operand
+     result_decl test18.cpp 8:49 - operand
+     - isAutogenerated: 1
+      integer_type - result type
+      - precisionBits: 32
+      - signed
+       type_decl int <built-in> 0:0 - type name
+       - isAutogenerated: 1
+       integer_cst 32 - type size
+       integer_cst -2147483648 - min value
+       integer_cst 2147483647 - max value
+      integer_cst 32 - decl size
+     integer_cst 0 - operand
+  cleanup_point_expr test18.cpp 13:20 - statement
+   expr_stmt test18.cpp 13:20 - operand
+    convert_expr - expresssion
+     modify_expr - operand
+      component_ref test18.cpp 13:11 - operand
+       indirect_ref - object
+        - isUsed: 1
+        parm_decl ptr1 test18.cpp 8:25 - ref
+         pointer_type - decl type
+          record_type - nested type
+           type_decl Data1 test18.cpp 1:8 - type name
+           - isAutogenerated: 1
+           field_decl val test18.cpp 3:9 - field
+           - signed
+            integer_cst 32 - decl size
+           type_decl Data1 test18.cpp 2:1 - field
+           - isAutogenerated: 1
+         integer_cst 64 - parm size
+       field_decl val test18.cpp 3:9 - field
+       - signed
+        integer_cst 32 - decl size
+      integer_cst 100 - operand
+function_decl func2 test18.cpp 16:5
+- isPublic: 1
+ function_type - function type
+  integer_type - function return type
+  - precisionBits: 32
+  - signed
+   type_decl int <built-in> 0:0 - type name
+   - isAutogenerated: 1
+   integer_cst 32 - type size
+   integer_cst -2147483648 - min value
+   integer_cst 2147483647 - max value
+  tree_list - arg types
+   pointer_type - value
+    record_type - nested type
+     type_decl Data1 test18.cpp 1:8 - type name
+     - isAutogenerated: 1
+     field_decl val test18.cpp 3:9 - field
+     - signed
+      integer_cst 32 - decl size
+     type_decl Data1 test18.cpp 2:1 - field
+     - isAutogenerated: 1
+   tree_list - chain
+    pointer_type - value
+     record_type - nested type
+      type_decl Data1 test18.cpp 1:8 - type name
+      - isAutogenerated: 1
+      field_decl val test18.cpp 3:9 - field
+      - signed
+       integer_cst 32 - decl size
+      type_decl Data1 test18.cpp 2:1 - field
+      - isAutogenerated: 1
+    tree_list - chain
+     void_type - value
+      type_decl void <built-in> 0:0 - type name
+      - isAutogenerated: 1
+ result_decl test18.cpp 16:49 - function result
+ - isAutogenerated: 1
+  integer_type - result type
+  - precisionBits: 32
+  - signed
+   type_decl int <built-in> 0:0 - type name
+   - isAutogenerated: 1
+   integer_cst 32 - type size
+   integer_cst -2147483648 - min value
+   integer_cst 2147483647 - max value
+  integer_cst 32 - decl size
+ - isUsed: 1
+ parm_decl ptr1 test18.cpp 16:25 - argument
+  pointer_type - decl type
+   record_type - nested type
+    type_decl Data1 test18.cpp 1:8 - type name
+    - isAutogenerated: 1
+    field_decl val test18.cpp 3:9 - field
+    - signed
+     integer_cst 32 - decl size
+    type_decl Data1 test18.cpp 2:1 - field
+    - isAutogenerated: 1
+  integer_cst 64 - parm size
+ parm_decl ptr2 test18.cpp 16:45 - argument
+  pointer_type - decl type
+   record_type - nested type
+    type_decl Data1 test18.cpp 1:8 - type name
+    - isAutogenerated: 1
+    field_decl val test18.cpp 3:9 - field
+    - signed
+     integer_cst 32 - decl size
+    type_decl Data1 test18.cpp 2:1 - field
+    - isAutogenerated: 1
+  integer_cst 64 - parm size
+ statement_list - code
+  if_stmt test18.cpp 18:5 - statement
+   eq_expr test18.cpp 18:14 - condition
+    - isUsed: 1
+    parm_decl ptr1 test18.cpp 16:25 - operand
+     pointer_type - decl type
+      record_type - nested type
+       type_decl Data1 test18.cpp 1:8 - type name
+       - isAutogenerated: 1
+       field_decl val test18.cpp 3:9 - field
+       - signed
+        integer_cst 32 - decl size
+       type_decl Data1 test18.cpp 2:1 - field
+       - isAutogenerated: 1
+     integer_cst 64 - parm size
+    integer_cst 0 - operand
+   return_expr test18.cpp 19:16 - then
+    init_expr - operand
+     result_decl test18.cpp 16:49 - operand
+     - isAutogenerated: 1
+      integer_type - result type
+      - precisionBits: 32
+      - signed
+       type_decl int <built-in> 0:0 - type name
+       - isAutogenerated: 1
+       integer_cst 32 - type size
+       integer_cst -2147483648 - min value
+       integer_cst 2147483647 - max value
+      integer_cst 32 - decl size
+     integer_cst 0 - operand
+  cleanup_point_expr test18.cpp 20:20 - statement
+   expr_stmt test18.cpp 20:20 - operand
+    convert_expr - expresssion
+     modify_expr - operand
+      component_ref test18.cpp 20:11 - operand
+       indirect_ref - object
+        - isUsed: 1
+        parm_decl ptr1 test18.cpp 16:25 - ref
+         pointer_type - decl type
+          record_type - nested type
+           type_decl Data1 test18.cpp 1:8 - type name
+           - isAutogenerated: 1
+           field_decl val test18.cpp 3:9 - field
+           - signed
+            integer_cst 32 - decl size
+           type_decl Data1 test18.cpp 2:1 - field
+           - isAutogenerated: 1
+         integer_cst 64 - parm size
+       field_decl val test18.cpp 3:9 - field
+       - signed
+        integer_cst 32 - decl size
+      integer_cst 100 - operand
+  return_expr test18.cpp 21:12 - statement
+   init_expr - operand
+    result_decl test18.cpp 16:49 - operand
+    - isAutogenerated: 1
+     integer_type - result type
+     - precisionBits: 32
+     - signed
+      type_decl int <built-in> 0:0 - type name
+      - isAutogenerated: 1
+      integer_cst 32 - type size
+      integer_cst -2147483648 - min value
+      integer_cst 2147483647 - max value
+     integer_cst 32 - decl size
+    integer_cst 0 - operand
+function_decl func3 test18.cpp 24:5
+- isPublic: 1
+ function_type - function type
+  integer_type - function return type
+  - precisionBits: 32
+  - signed
+   type_decl int <built-in> 0:0 - type name
+   - isAutogenerated: 1
+   integer_cst 32 - type size
+   integer_cst -2147483648 - min value
+   integer_cst 2147483647 - max value
+  tree_list - arg types
+   pointer_type - value
+    record_type - nested type
+     type_decl Data1 test18.cpp 1:8 - type name
+     - isAutogenerated: 1
+     field_decl val test18.cpp 3:9 - field
+     - signed
+      integer_cst 32 - decl size
+     type_decl Data1 test18.cpp 2:1 - field
+     - isAutogenerated: 1
+   tree_list - chain
+    pointer_type - value
+     record_type - nested type
+      type_decl Data1 test18.cpp 1:8 - type name
+      - isAutogenerated: 1
+      field_decl val test18.cpp 3:9 - field
+      - signed
+       integer_cst 32 - decl size
+      type_decl Data1 test18.cpp 2:1 - field
+      - isAutogenerated: 1
+    tree_list - chain
+     void_type - value
+      type_decl void <built-in> 0:0 - type name
+      - isAutogenerated: 1
+ result_decl test18.cpp 24:49 - function result
+ - isAutogenerated: 1
+  integer_type - result type
+  - precisionBits: 32
+  - signed
+   type_decl int <built-in> 0:0 - type name
+   - isAutogenerated: 1
+   integer_cst 32 - type size
+   integer_cst -2147483648 - min value
+   integer_cst 2147483647 - max value
+  integer_cst 32 - decl size
+ - isUsed: 1
+ parm_decl ptr1 test18.cpp 24:25 - argument
+  pointer_type - decl type
+   record_type - nested type
+    type_decl Data1 test18.cpp 1:8 - type name
+    - isAutogenerated: 1
+    field_decl val test18.cpp 3:9 - field
+    - signed
+     integer_cst 32 - decl size
+    type_decl Data1 test18.cpp 2:1 - field
+    - isAutogenerated: 1
+  integer_cst 64 - parm size
+ parm_decl ptr2 test18.cpp 24:45 - argument
+  pointer_type - decl type
+   record_type - nested type
+    type_decl Data1 test18.cpp 1:8 - type name
+    - isAutogenerated: 1
+    field_decl val test18.cpp 3:9 - field
+    - signed
+     integer_cst 32 - decl size
+    type_decl Data1 test18.cpp 2:1 - field
+    - isAutogenerated: 1
+  integer_cst 64 - parm size
+ statement_list - code
+  if_stmt test18.cpp 26:5 - statement
+   ne_expr test18.cpp 26:14 - condition
+    - isUsed: 1
+    parm_decl ptr1 test18.cpp 24:25 - operand
+     pointer_type - decl type
+      record_type - nested type
+       type_decl Data1 test18.cpp 1:8 - type name
+       - isAutogenerated: 1
+       field_decl val test18.cpp 3:9 - field
+       - signed
+        integer_cst 32 - decl size
+       type_decl Data1 test18.cpp 2:1 - field
+       - isAutogenerated: 1
+     integer_cst 64 - parm size
+    integer_cst 0 - operand
+   return_expr test18.cpp 27:16 - then
+    init_expr - operand
+     result_decl test18.cpp 24:49 - operand
+     - isAutogenerated: 1
+      integer_type - result type
+      - precisionBits: 32
+      - signed
+       type_decl int <built-in> 0:0 - type name
+       - isAutogenerated: 1
+       integer_cst 32 - type size
+       integer_cst -2147483648 - min value
+       integer_cst 2147483647 - max value
+      integer_cst 32 - decl size
+     integer_cst 0 - operand
+  cleanup_point_expr test18.cpp 28:20 - statement
+   expr_stmt test18.cpp 28:20 - operand
+    convert_expr - expresssion
+     modify_expr - operand
+      component_ref test18.cpp 28:11 - operand
+       indirect_ref - object
+        - isUsed: 1
+        parm_decl ptr1 test18.cpp 24:25 - ref
+         pointer_type - decl type
+          record_type - nested type
+           type_decl Data1 test18.cpp 1:8 - type name
+           - isAutogenerated: 1
+           field_decl val test18.cpp 3:9 - field
+           - signed
+            integer_cst 32 - decl size
+           type_decl Data1 test18.cpp 2:1 - field
+           - isAutogenerated: 1
+         integer_cst 64 - parm size
+       field_decl val test18.cpp 3:9 - field
+       - signed
+        integer_cst 32 - decl size
+      integer_cst 100 - operand
+  return_expr test18.cpp 29:12 - statement
+   init_expr - operand
+    result_decl test18.cpp 24:49 - operand
+    - isAutogenerated: 1
+     integer_type - result type
+     - precisionBits: 32
+     - signed
+      type_decl int <built-in> 0:0 - type name
+      - isAutogenerated: 1
+      integer_cst 32 - type size
+      integer_cst -2147483648 - min value
+      integer_cst 2147483647 - max value
+     integer_cst 32 - decl size
+    integer_cst 0 - operand
+function_decl func4 test18.cpp 32:6
+- isPublic: 1
+ function_type - function type
+  void_type - function return type
+   type_decl void <built-in> 0:0 - type name
+   - isAutogenerated: 1
+  tree_list - arg types
+   pointer_type - value
+    record_type - nested type
+     type_decl Data1 test18.cpp 1:8 - type name
+     - isAutogenerated: 1
+     field_decl val test18.cpp 3:9 - field
+     - signed
+      integer_cst 32 - decl size
+     type_decl Data1 test18.cpp 2:1 - field
+     - isAutogenerated: 1
+   tree_list - chain
+    pointer_type - value
+     record_type - nested type
+      type_decl Data1 test18.cpp 1:8 - type name
+      - isAutogenerated: 1
+      field_decl val test18.cpp 3:9 - field
+      - signed
+       integer_cst 32 - decl size
+      type_decl Data1 test18.cpp 2:1 - field
+      - isAutogenerated: 1
+    tree_list - chain
+     void_type - value
+      type_decl void <built-in> 0:0 - type name
+      - isAutogenerated: 1
+ result_decl test18.cpp 32:50 - function result
+ - isAutogenerated: 1
+  void_type - result type
+   type_decl void <built-in> 0:0 - type name
+   - isAutogenerated: 1
+ - isUsed: 1
+ parm_decl ptr1 test18.cpp 32:26 - argument
+  pointer_type - decl type
+   record_type - nested type
+    type_decl Data1 test18.cpp 1:8 - type name
+    - isAutogenerated: 1
+    field_decl val test18.cpp 3:9 - field
+    - signed
+     integer_cst 32 - decl size
+    type_decl Data1 test18.cpp 2:1 - field
+    - isAutogenerated: 1
+  integer_cst 64 - parm size
+ parm_decl ptr2 test18.cpp 32:46 - argument
+  pointer_type - decl type
+   record_type - nested type
+    type_decl Data1 test18.cpp 1:8 - type name
+    - isAutogenerated: 1
+    field_decl val test18.cpp 3:9 - field
+    - signed
+     integer_cst 32 - decl size
+    type_decl Data1 test18.cpp 2:1 - field
+    - isAutogenerated: 1
+  integer_cst 64 - parm size
+ statement_list - code
+  if_stmt test18.cpp 34:5 - statement
+   eq_expr test18.cpp 34:11 - condition
+    var_decl k test18.cpp 6:5 - operand
+    - isUsed: 1
+     integer_cst 32 - decl size
+     integer_type - var type
+     - precisionBits: 32
+     - signed
+      type_decl int <built-in> 0:0 - type name
+      - isAutogenerated: 1
+      integer_cst 32 - type size
+      integer_cst -2147483648 - min value
+      integer_cst 2147483647 - max value
+    integer_cst 10 - operand
+   if_stmt test18.cpp 36:9 - then
+    eq_expr test18.cpp 36:14 - condition
+     - isUsed: 1
+     parm_decl ptr1 test18.cpp 32:26 - operand
+      pointer_type - decl type
+       record_type - nested type
+        type_decl Data1 test18.cpp 1:8 - type name
+        - isAutogenerated: 1
+        field_decl val test18.cpp 3:9 - field
+        - signed
+         integer_cst 32 - decl size
+        type_decl Data1 test18.cpp 2:1 - field
+        - isAutogenerated: 1
+      integer_cst 64 - parm size
+     integer_cst 0 - operand
+    return_expr test18.cpp 37:13 - then
+  cleanup_point_expr test18.cpp 40:20 - statement
+   expr_stmt test18.cpp 40:20 - operand
+    convert_expr - expresssion
+     modify_expr - operand
+      component_ref test18.cpp 40:11 - operand
+       indirect_ref - object
+        - isUsed: 1
+        parm_decl ptr1 test18.cpp 32:26 - ref
+         pointer_type - decl type
+          record_type - nested type
+           type_decl Data1 test18.cpp 1:8 - type name
+           - isAutogenerated: 1
+           field_decl val test18.cpp 3:9 - field
+           - signed
+            integer_cst 32 - decl size
+           type_decl Data1 test18.cpp 2:1 - field
+           - isAutogenerated: 1
+         integer_cst 64 - parm size
+       field_decl val test18.cpp 3:9 - field
+       - signed
+        integer_cst 32 - decl size
+      integer_cst 100 - operand
+function_decl func5 test18.cpp 43:6
+- isPublic: 1
+ function_type - function type
+  void_type - function return type
+   type_decl void <built-in> 0:0 - type name
+   - isAutogenerated: 1
+  tree_list - arg types
+   pointer_type - value
+    record_type - nested type
+     type_decl Data1 test18.cpp 1:8 - type name
+     - isAutogenerated: 1
+     field_decl val test18.cpp 3:9 - field
+     - signed
+      integer_cst 32 - decl size
+     type_decl Data1 test18.cpp 2:1 - field
+     - isAutogenerated: 1
+   tree_list - chain
+    pointer_type - value
+     record_type - nested type
+      type_decl Data1 test18.cpp 1:8 - type name
+      - isAutogenerated: 1
+      field_decl val test18.cpp 3:9 - field
+      - signed
+       integer_cst 32 - decl size
+      type_decl Data1 test18.cpp 2:1 - field
+      - isAutogenerated: 1
+    tree_list - chain
+     void_type - value
+      type_decl void <built-in> 0:0 - type name
+      - isAutogenerated: 1
+ result_decl test18.cpp 43:50 - function result
+ - isAutogenerated: 1
+  void_type - result type
+   type_decl void <built-in> 0:0 - type name
+   - isAutogenerated: 1
+ - isUsed: 1
+ parm_decl ptr1 test18.cpp 43:26 - argument
+  pointer_type - decl type
+   record_type - nested type
+    type_decl Data1 test18.cpp 1:8 - type name
+    - isAutogenerated: 1
+    field_decl val test18.cpp 3:9 - field
+    - signed
+     integer_cst 32 - decl size
+    type_decl Data1 test18.cpp 2:1 - field
+    - isAutogenerated: 1
+  integer_cst 64 - parm size
+ - isUsed: 1
+ parm_decl ptr2 test18.cpp 43:46 - argument
+  pointer_type - decl type
+   record_type - nested type
+    type_decl Data1 test18.cpp 1:8 - type name
+    - isAutogenerated: 1
+    field_decl val test18.cpp 3:9 - field
+    - signed
+     integer_cst 32 - decl size
+    type_decl Data1 test18.cpp 2:1 - field
+    - isAutogenerated: 1
+  integer_cst 64 - parm size
+ statement_list - code
+  if_stmt test18.cpp 45:5 - statement
+   eq_expr test18.cpp 45:10 - condition
+    - isUsed: 1
+    parm_decl ptr1 test18.cpp 43:26 - operand
+     pointer_type - decl type
+      record_type - nested type
+       type_decl Data1 test18.cpp 1:8 - type name
+       - isAutogenerated: 1
+       field_decl val test18.cpp 3:9 - field
+       - signed
+        integer_cst 32 - decl size
+       type_decl Data1 test18.cpp 2:1 - field
+       - isAutogenerated: 1
+     integer_cst 64 - parm size
+    integer_cst 0 - operand
+   return_expr test18.cpp 46:9 - then
+  if_stmt test18.cpp 48:5 - statement
+   ne_expr - condition
+    - isUsed: 1
+    parm_decl ptr2 test18.cpp 43:46 - operand
+     pointer_type - decl type
+      record_type - nested type
+       type_decl Data1 test18.cpp 1:8 - type name
+       - isAutogenerated: 1
+       field_decl val test18.cpp 3:9 - field
+       - signed
+        integer_cst 32 - decl size
+       type_decl Data1 test18.cpp 2:1 - field
+       - isAutogenerated: 1
+     integer_cst 64 - parm size
+    integer_cst 0 - operand
+   return_expr test18.cpp 49:9 - then
+  cleanup_point_expr test18.cpp 51:20 - statement
+   expr_stmt test18.cpp 51:20 - operand
+    convert_expr - expresssion
+     modify_expr - operand
+      component_ref test18.cpp 51:11 - operand
+       indirect_ref - object
+        - isUsed: 1
+        parm_decl ptr1 test18.cpp 43:26 - ref
+         pointer_type - decl type
+          record_type - nested type
+           type_decl Data1 test18.cpp 1:8 - type name
+           - isAutogenerated: 1
+           field_decl val test18.cpp 3:9 - field
+           - signed
+            integer_cst 32 - decl size
+           type_decl Data1 test18.cpp 2:1 - field
+           - isAutogenerated: 1
+         integer_cst 64 - parm size
+       field_decl val test18.cpp 3:9 - field
+       - signed
+        integer_cst 32 - decl size
+      integer_cst 100 - operand
diff --git a/test/test18-02.txt b/test/test18-02.txt
new file mode 100644
index 0000000..8cfcab3
--- /dev/null
+++ b/test/test18-02.txt
@@ -0,0 +1,5 @@
+func1: pointer_type ptr1, pointer_type ptr2, 
+func2: pointer_type ptr1, pointer_type ptr2, 
+func3: pointer_type ptr1, pointer_type ptr2, 
+func4: pointer_type ptr1, pointer_type ptr2, 
+func5: pointer_type ptr1, pointer_type ptr2, 
diff --git a/test/test18-03.txt b/test/test18-03.txt
new file mode 100644
index 0000000..9f099c5
--- /dev/null
+++ b/test/test18-03.txt
@@ -0,0 +1,232 @@
+function_decl func1: 
+statement_list : ptr1, ptr2, 
+if_stmt : ptr1, ptr2, 
+eq_expr : ptr1, ptr2, 
+parm_decl ptr1: ptr1, ptr2, 
+pointer_type : ptr1, ptr2, 
+record_type : ptr1, ptr2, 
+type_decl Data1: ptr1, ptr2, 
+field_decl val: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+type_decl Data1: ptr1, ptr2, 
+integer_cst 64: ptr1, ptr2, 
+integer_cst 0: ptr1, ptr2, 
+return_expr : ptr1, ptr2, 
+init_expr : ptr1, ptr2, 
+result_decl : ptr1, ptr2, 
+integer_type : ptr1, ptr2, 
+type_decl int: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+integer_cst -2147483648: ptr1, ptr2, 
+integer_cst 2147483647: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+integer_cst 0: ptr1, ptr2, 
+cleanup_point_expr : ptr1, ptr2, 
+expr_stmt : ptr2, 
+convert_expr : ptr2, 
+modify_expr : ptr2, 
+component_ref : ptr2, 
+indirect_ref : ptr2, 
+parm_decl ptr1: ptr2, 
+pointer_type : ptr2, 
+record_type : ptr2, 
+type_decl Data1: ptr2, 
+field_decl val: ptr2, 
+integer_cst 32: ptr2, 
+type_decl Data1: ptr2, 
+integer_cst 64: ptr2, 
+field_decl val: ptr2, 
+integer_cst 32: ptr2, 
+integer_cst 100: ptr2, 
+function_decl func2: 
+statement_list : ptr1, ptr2, 
+if_stmt : ptr1, ptr2, 
+eq_expr : ptr1, ptr2, 
+parm_decl ptr1: ptr1, ptr2, 
+pointer_type : ptr1, ptr2, 
+record_type : ptr1, ptr2, 
+type_decl Data1: ptr1, ptr2, 
+field_decl val: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+type_decl Data1: ptr1, ptr2, 
+integer_cst 64: ptr1, ptr2, 
+integer_cst 0: ptr1, ptr2, 
+return_expr : ptr1, ptr2, 
+init_expr : ptr1, ptr2, 
+result_decl : ptr1, ptr2, 
+integer_type : ptr1, ptr2, 
+type_decl int: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+integer_cst -2147483648: ptr1, ptr2, 
+integer_cst 2147483647: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+integer_cst 0: ptr1, ptr2, 
+cleanup_point_expr : ptr1, ptr2, 
+expr_stmt : ptr2, 
+convert_expr : ptr2, 
+modify_expr : ptr2, 
+component_ref : ptr2, 
+indirect_ref : ptr2, 
+parm_decl ptr1: ptr2, 
+pointer_type : ptr2, 
+record_type : ptr2, 
+type_decl Data1: ptr2, 
+field_decl val: ptr2, 
+integer_cst 32: ptr2, 
+type_decl Data1: ptr2, 
+integer_cst 64: ptr2, 
+field_decl val: ptr2, 
+integer_cst 32: ptr2, 
+integer_cst 100: ptr2, 
+return_expr : ptr1, ptr2, 
+init_expr : ptr2, 
+result_decl : ptr2, 
+integer_type : ptr2, 
+type_decl int: ptr2, 
+integer_cst 32: ptr2, 
+integer_cst -2147483648: ptr2, 
+integer_cst 2147483647: ptr2, 
+integer_cst 32: ptr2, 
+integer_cst 0: ptr2, 
+function_decl func3: 
+statement_list : ptr1, ptr2, 
+if_stmt : ptr1, ptr2, 
+ne_expr : ptr1, ptr2, 
+parm_decl ptr1: ptr1, ptr2, 
+pointer_type : ptr1, ptr2, 
+record_type : ptr1, ptr2, 
+type_decl Data1: ptr1, ptr2, 
+field_decl val: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+type_decl Data1: ptr1, ptr2, 
+integer_cst 64: ptr1, ptr2, 
+integer_cst 0: ptr1, ptr2, 
+return_expr : ptr2, 
+init_expr : ptr2, 
+result_decl : ptr2, 
+integer_type : ptr2, 
+type_decl int: ptr2, 
+integer_cst 32: ptr2, 
+integer_cst -2147483648: ptr2, 
+integer_cst 2147483647: ptr2, 
+integer_cst 32: ptr2, 
+integer_cst 0: ptr2, 
+cleanup_point_expr : ptr1, ptr2, 
+expr_stmt : ptr1, ptr2, 
+convert_expr : ptr1, ptr2, 
+modify_expr : ptr1, ptr2, 
+component_ref : ptr1, ptr2, 
+test18.cpp: In function 'int func3(Data1*, Data1*)':
+test18.cpp:28:11: warning: Using parameter 'ptr1' without checking for null pointer
+     ptr1->val = 100;
+           ^
+indirect_ref : ptr1, ptr2, 
+parm_decl ptr1: ptr1, ptr2, 
+pointer_type : ptr1, ptr2, 
+record_type : ptr1, ptr2, 
+type_decl Data1: ptr1, ptr2, 
+field_decl val: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+type_decl Data1: ptr1, ptr2, 
+integer_cst 64: ptr1, ptr2, 
+field_decl val: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+integer_cst 100: ptr1, ptr2, 
+return_expr : ptr1, ptr2, 
+init_expr : ptr1, ptr2, 
+result_decl : ptr1, ptr2, 
+integer_type : ptr1, ptr2, 
+type_decl int: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+integer_cst -2147483648: ptr1, ptr2, 
+integer_cst 2147483647: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+integer_cst 0: ptr1, ptr2, 
+function_decl func4: 
+statement_list : ptr1, ptr2, 
+if_stmt : ptr1, ptr2, 
+eq_expr : ptr1, ptr2, 
+var_decl k: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+integer_type : ptr1, ptr2, 
+type_decl int: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+integer_cst -2147483648: ptr1, ptr2, 
+integer_cst 2147483647: ptr1, ptr2, 
+integer_cst 10: ptr1, ptr2, 
+if_stmt : ptr1, ptr2, 
+eq_expr : ptr1, ptr2, 
+parm_decl ptr1: ptr1, ptr2, 
+pointer_type : ptr1, ptr2, 
+record_type : ptr1, ptr2, 
+type_decl Data1: ptr1, ptr2, 
+field_decl val: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+type_decl Data1: ptr1, ptr2, 
+integer_cst 64: ptr1, ptr2, 
+integer_cst 0: ptr1, ptr2, 
+return_expr : ptr1, ptr2, 
+cleanup_point_expr : ptr1, ptr2, 
+expr_stmt : ptr1, ptr2, 
+convert_expr : ptr1, ptr2, 
+modify_expr : ptr1, ptr2, 
+component_ref : ptr1, ptr2, 
+test18.cpp: In function 'void func4(Data1*, Data1*)':
+test18.cpp:40:11: warning: Using parameter 'ptr1' without checking for null pointer
+     ptr1->val = 100;
+           ^
+indirect_ref : ptr1, ptr2, 
+parm_decl ptr1: ptr1, ptr2, 
+pointer_type : ptr1, ptr2, 
+record_type : ptr1, ptr2, 
+type_decl Data1: ptr1, ptr2, 
+field_decl val: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+type_decl Data1: ptr1, ptr2, 
+integer_cst 64: ptr1, ptr2, 
+field_decl val: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+integer_cst 100: ptr1, ptr2, 
+function_decl func5: 
+statement_list : ptr1, ptr2, 
+if_stmt : ptr1, ptr2, 
+eq_expr : ptr1, ptr2, 
+parm_decl ptr1: ptr1, ptr2, 
+pointer_type : ptr1, ptr2, 
+record_type : ptr1, ptr2, 
+type_decl Data1: ptr1, ptr2, 
+field_decl val: ptr1, ptr2, 
+integer_cst 32: ptr1, ptr2, 
+type_decl Data1: ptr1, ptr2, 
+integer_cst 64: ptr1, ptr2, 
+integer_cst 0: ptr1, ptr2, 
+return_expr : ptr1, ptr2, 
+if_stmt : ptr1, ptr2, 
+ne_expr : ptr1, ptr2, 
+parm_decl ptr2: ptr2, 
+pointer_type : ptr2, 
+record_type : ptr2, 
+type_decl Data1: ptr2, 
+field_decl val: ptr2, 
+integer_cst 32: ptr2, 
+type_decl Data1: ptr2, 
+integer_cst 64: ptr2, 
+integer_cst 0: ptr2, 
+return_expr : ptr1, 
+cleanup_point_expr : ptr1, ptr2, 
+expr_stmt : ptr2, 
+convert_expr : ptr2, 
+modify_expr : ptr2, 
+component_ref : ptr2, 
+indirect_ref : ptr2, 
+parm_decl ptr1: ptr2, 
+pointer_type : ptr2, 
+record_type : ptr2, 
+type_decl Data1: ptr2, 
+field_decl val: ptr2, 
+integer_cst 32: ptr2, 
+type_decl Data1: ptr2, 
+integer_cst 64: ptr2, 
+field_decl val: ptr2, 
+integer_cst 32: ptr2, 
+integer_cst 100: ptr2, 
diff --git a/test/test18-04.txt b/test/test18-04.txt
new file mode 100644
index 0000000..059a430
--- /dev/null
+++ b/test/test18-04.txt
@@ -0,0 +1,8 @@
+test18.cpp: In function 'int func3(Data1*, Data1*)':
+test18.cpp:28:11: warning: Using parameter 'ptr1' without checking for null pointer
+     ptr1->val = 100;
+           ^
+test18.cpp: In function 'void func4(Data1*, Data1*)':
+test18.cpp:40:11: warning: Using parameter 'ptr1' without checking for null pointer
+     ptr1->val = 100;
+           ^
diff --git a/test/test18.cpp b/test/test18.cpp
new file mode 100644
index 0000000..e830e26
--- /dev/null
+++ b/test/test18.cpp
@@ -0,0 +1,52 @@
+struct Data1
+{
+    int val;
+};
+
+int k;
+
+int func1(struct Data1 *ptr1, struct Data1 *ptr2)
+{
+    if (ptr1 ? 0 : 1)
+        return(0);
+
+    ptr1->val = 100;
+}
+
+int func2(struct Data1 *ptr1, struct Data1 *ptr2)
+{
+    if (ptr1 == (123, 0))
+        return 0;
+    ptr1->val = 100;
+    return 0;
+}
+
+int func3(struct Data1 *ptr1, struct Data1 *ptr2)
+{
+    if (ptr1 != (123, 0))
+        return 0;
+    ptr1->val = 100;
+    return 0;
+}
+
+void func4(struct Data1 *ptr1, struct Data1 *ptr2)
+{
+    if (k == 10)
+    {
+        if (!ptr1)
+            return;
+    }
+
+    ptr1->val = 100;
+}
+
+void func5(struct Data1 *ptr1, struct Data1 *ptr2)
+{
+    if (!ptr1)
+        return;
+
+    if (ptr2)
+        return;
+
+    ptr1->val = 100;
+}