gdb/testsuite/gdb.base/vla-datatypes.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2014-2019 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 #include <stddef.h>
  19 #define SIZE 5
  20
  21 struct foo
  22 {
  23   int a;
  24 };
  25
  26 typedef struct bar
  27 {
  28   int x;
  29   struct foo y;
  30 } BAR;
  31
  32 void
  33 vla_factory (int n)
  34 {
  35   int             int_vla[n];
  36   unsigned int    unsigned_int_vla[n];
  37   double          double_vla[n];
  38   float           float_vla[n];
  39   long            long_vla[n];
  40   unsigned long   unsigned_long_vla[n];
  41   char            char_vla[n];
  42   short           short_vla[n];
  43   unsigned short  unsigned_short_vla[n];
  44   unsigned char   unsigned_char_vla[n];
  45   struct foo      foo_vla[n];
  46   BAR             bar_vla[n];
  47   int i;
  48
  49   struct vla_struct
  50   {
  51     int something;
  52     int vla_field[n];
  53   } vla_struct_object;
  54
  55   struct inner_vla_struct
  56   {
  57     int something;
  58     int vla_field[n];
  59     int after;
  60   } inner_vla_struct_object;
  61
  62   union vla_union
  63   {
  64     int vla_field[n];
  65   } vla_union_object;
  66
  67   vla_struct_object.something = n;
  68   inner_vla_struct_object.something = n;
  69   inner_vla_struct_object.after = n;
  70   for (i = 0; i < n; i++)
  71     {
  72       int_vla[i] = i*2;
  73       unsigned_int_vla[i] = i*2;
  74       double_vla[i] = i/2.0;
  75       float_vla[i] = i/2.0f;
  76       long_vla[i] = i*2;
  77       unsigned_long_vla[i] = i*2;
  78       char_vla[i] = 'A';
  79       short_vla[i] = i*2;
  80       unsigned_short_vla[i] = i*2;
  81       unsigned_char_vla[i] = 'A';
  82       foo_vla[i].a = i*2;
  83       bar_vla[i].x = i*2;
  84       bar_vla[i].y.a = i*2;
  85       vla_struct_object.vla_field[i] = i*2;
  86       vla_union_object.vla_field[i] = i*2;
  87       inner_vla_struct_object.vla_field[i] = i*2;
  88     }
  89
  90   size_t int_size        = sizeof(int_vla);     /* vlas_filled */
  91   size_t uint_size       = sizeof(unsigned_int_vla);
  92   size_t double_size     = sizeof(double_vla);
  93   size_t float_size      = sizeof(float_vla);
  94   size_t long_size       = sizeof(long_vla);
  95   size_t char_size       = sizeof(char_vla);
  96   size_t short_size      = sizeof(short_vla);
  97   size_t ushort_size     = sizeof(unsigned_short_vla);
  98   size_t uchar_size      = sizeof(unsigned_char_vla);
  99   size_t foo_size        = sizeof(foo_vla);
 100   size_t bar_size        = sizeof(bar_vla);
 101   size_t vla_struct_object_size = sizeof(vla_struct_object);
 102   size_t vla_union_object_size = sizeof(vla_union_object);
 103   size_t inner_vla_struct_object_size = sizeof(inner_vla_struct_object);
 104
 105   return;                                 /* break_end_of_vla_factory */
 106 }
 107
 108 int
 109 main (void)
 110 {
 111   vla_factory(SIZE);
 112   return 0;
 113 }