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

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2014-2021 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   for (i = 0; i < n; i++)
  50     {
  51       int_vla[i] = i*2;
  52       unsigned_int_vla[i] = i*2;
  53       double_vla[i] = i/2.0;
  54       float_vla[i] = i/2.0f;
  55       long_vla[i] = i*2;
  56       unsigned_long_vla[i] = i*2;
  57       char_vla[i] = 'A';
  58       short_vla[i] = i*2;
  59       unsigned_short_vla[i] = i*2;
  60       unsigned_char_vla[i] = 'A';
  61       foo_vla[i].a = i*2;
  62       bar_vla[i].x = i*2;
  63       bar_vla[i].y.a = i*2;
  64     }
  65
  66   size_t int_size        = sizeof(int_vla);     /* vlas_filled */
  67   size_t uint_size       = sizeof(unsigned_int_vla);
  68   size_t double_size     = sizeof(double_vla);
  69   size_t float_size      = sizeof(float_vla);
  70   size_t long_size       = sizeof(long_vla);
  71   size_t char_size       = sizeof(char_vla);
  72   size_t short_size      = sizeof(short_vla);
  73   size_t ushort_size     = sizeof(unsigned_short_vla);
  74   size_t uchar_size      = sizeof(unsigned_char_vla);
  75   size_t foo_size        = sizeof(foo_vla);
  76   size_t bar_size        = sizeof(bar_vla);
  77
  78   return;                                 /* break_end_of_vla_factory */
  79 }
  80
  81 int
  82 main (void)
  83 {
  84   vla_factory(SIZE);
  85   return 0;
  86 }