gdb/testsuite/gdb.base/whatis-ptype-typedefs.c

   1 /* This test program is part of GDB, the GNU debugger.
   2
   3    Copyright 2017 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 /* Define typedefs of different types, for testing the "whatis" and
  19    "ptype" commands.  */
  20
  21 /* Helper macro used to consistently define variables/typedefs using
  22    the same name scheme.  BASE is the shared part of the name of all
  23    typedefs/variables generated.  Defines a variable of the given
  24    typedef type, and then a typedef of that typedef and a variable of
  25    that new typedef type.  The "double typedef" is useful to checking
  26    that whatis only strips one typedef level.  For example, if BASE is
  27    "int", we get:
  28
  29   int_typedef v_int_typedef; // "v_" stands for variable of typedef type
  30   typedef int_typedef int_typedef2; // typedef-of-typedef
  31   int_typedef2 v_int_typedef2; // var of typedef-of-typedef
  32 */
  33 #define DEF(base)                               \
  34   base ## _typedef v_ ## base ## _typedef;      \
  35                                                 \
  36   typedef base ## _typedef base ## _typedef2;   \
  37   base ## _typedef2 v_ ## base ## _typedef2
  38
  39 /* Void.  */
  40
  41 /* (Can't have variables of void type.)  */
  42
  43 typedef void void_typedef;
  44 typedef void_typedef void_typedef2;
  45
  46 void_typedef *v_void_typedef_ptr;
  47 void_typedef2 *v_void_typedef_ptr2;
  48
  49 /* Integers.  */
  50
  51 typedef int int_typedef;
  52 DEF (int);
  53
  54 /* Floats.  */
  55
  56 typedef float float_typedef;
  57 DEF (float);
  58
  59 /* Enums.  */
  60
  61 typedef enum colors {red, green, blue} colors_typedef;
  62 DEF (colors);
  63
  64 /* Structures.  */
  65
  66 typedef struct t_struct
  67 {
  68   int member;
  69 } t_struct_typedef;
  70 DEF (t_struct);
  71
  72 /* Unions.  */
  73
  74 typedef union t_union
  75 {
  76   int member;
  77 } t_union_typedef;
  78 DEF (t_union);
  79
  80 /* Arrays.  */
  81
  82 typedef int int_array_typedef[3];
  83 DEF (int_array);
  84
  85 /* An array the same size of t_struct_typedef, so we can test casting.  */
  86 typedef unsigned char uchar_array_t_struct_typedef[sizeof (t_struct_typedef)];
  87 DEF (uchar_array_t_struct);
  88
  89 /* A struct and a eunion the same size as t_struct, so we can test
  90    casting.  */
  91
  92 typedef struct t_struct_wrapper
  93 {
  94   struct t_struct base;
  95 } t_struct_wrapper_typedef;
  96 DEF (t_struct_wrapper);
  97
  98 typedef union t_struct_union_wrapper
  99 {
 100   struct t_struct base;
 101 } t_struct_union_wrapper_typedef;
 102 DEF (t_struct_union_wrapper);
 103
 104 /* Functions / function pointers.  */
 105
 106 typedef void func_ftype (void);
 107 func_ftype *v_func_ftype;
 108
 109 typedef func_ftype func_ftype2;
 110 func_ftype2 *v_func_ftype2;
 111
 112 /* C++ methods / method pointers.  */
 113
 114 #ifdef __cplusplus
 115
 116 namespace ns {
 117
 118 struct Struct { void method (); };
 119 void Struct::method () {}
 120
 121 typedef Struct Struct_typedef;
 122 DEF (Struct);
 123
 124 /* Typedefs/vars in a namespace.  */
 125 typedef void (Struct::*method_ptr_typedef) ();
 126 DEF (method_ptr);
 127
 128 }
 129
 130 /* Similar, but in the global namespace.  */
 131 typedef ns::Struct ns_Struct_typedef;
 132 DEF (ns_Struct);
 133
 134 typedef void (ns::Struct::*ns_method_ptr_typedef) ();
 135 DEF (ns_method_ptr);
 136
 137 #endif
 138
 139 int
 140 main (void)
 141 {
 142   return 0;
 143 }