Add test.c for INT36-C

Author: jeongsoolee09

c/cert/test/rules/INT36-C/test.c

@@ -0,0 +1,60 @@
+#include <stdint.h>
+
+int main() {
+  /* Compliant declarations and assignments */
+  int integer1 = 1;        // COMPLIANT: declaring integer as integer
+  int integer2 = integer1; // COMPLIANT: declaring integer as integer
+  integer1 =
+      integer2; // COMPLIANT: assigning integer rvalue to integer variable
+  int *int_pointer1 =
+      &integer1; // COMPLIANT: declaring pointer variable as an address
+  int *int_pointer2 = int_pointer1; // COMPLIANT: declaring pointer variable as
+                                    // an address rvalue
+  int_pointer1 =
+      int_pointer2; // COMPLIANT: assigning pointer rvalue to a pointer variable
+
+  /* Integer to pointer */
+  int *int_pointer3 = 0x01abcdef; // NON_COMPLIANT: declaring pointer variable
+                                  // with raw hex integer
+  int_pointer3 =
+      0x01abcdef; // NON_COMPLIANT: assigning raw hex to pointer variable
+  int *int_pointer4 =
+      integer1; // NON_COMPLIANT: declaring pointer variable with integer value
+  *int_pointer4 =
+      integer1 +
+      1; // NON_COMPLIANT: assigning integer rvalue to pointer variable
+  int *integer_address5 =
+      (int *)0x01abcdef; // NON_COMPLIANT: casting raw hex to pointer type
+  int *integer_address6 =
+      (int *)integer1; // NON_COMPLIANT: casting integer value to pointer type
+
+  /* Pointer to integer */
+  int *integer_address7 =
+      &integer1; // COMPLIANT: declaring pointer variable as an address
+  int integer_address8 = &integer1; // NON_COMPLIANT: declaring integer
+                                    // variable with pointer type value
+  integer_address8 = &integer1; // NON_COMPLIANT: assigning pointer type rvalue
+                                // to integer variable
+  int integer_address =
+      (int)&integer1; // NON_COMPLIANT: casting pointer value to integer type
+
+  /* Exceptions that are COMPLIANT */
+  int *null_pointer1 =
+      0; // COMPLIANT: integer 0 converted to pointer becomes null pointer
+  int *null_pointer2 = (int *)0; // COMPLIANT: integer 0 is converted to pointer
+                                 // becomes null pointer
+  null_pointer2 =
+      0; // COMPLIANT: integer 0 converted to pointer becomes null pointer
+
+  void *void_pointer = &integer1;
+  intptr_t void_pointer_integer1 =
+      void_pointer; // COMPLIANT: void pointer can be converted to intptr_t
+  uintptr_t void_pointer_integer2 =
+      void_pointer; // COMPLIANT: void pointer can be converted to uintptr_t
+  void *void_pointer1 = (void *)
+      void_pointer_integer1; // COMPLIANT: intptr_t can be converted to void*
+  void *void_pointer2 = (void *)
+      void_pointer_integer2; // COMPLIANT: uintptr_t can be converted to void*
+
+  return 0;
+}