libstdc++-v3/testsuite/libstdc++-xmethods/deque.cc

   1 // { dg-do run }
   2 // { dg-options "-g -O0" }
   3
   4 // Copyright (C) 2014-2020 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 #include <deque>
  22
  23 const int max_deque_node_size = 512;
  24
  25 int
  26 main ()
  27 {
  28   std::deque<int> q0, q1, q2, q3;
  29   int int_size = sizeof (int);
  30
  31   // The xmethod logic is exercised differently for deques of different size.
  32   // Let q1 be a deque requiring only 1 node. Let q2 be a deque filling up
  33   // exactly 2 nodes. Let q3 be of size which would require 1 node and part
  34   // of the second node.
  35   int q1_size = max_deque_node_size / int_size / 2;
  36   int q2_size = max_deque_node_size / int_size * 2;
  37   int q3_size = max_deque_node_size / int_size * 3 / 2;
  38
  39   for (int i = 0; i < q1_size; i++)
  40     q1.push_back (100 + i);
  41
  42   for (int i = 0; i < q2_size; i++)
  43     q2.push_back (200 + i);
  44
  45   for  (int i = 0; i < q3_size; i++)
  46     q3.push_back (300 + i);
  47
  48 // { dg-final { note-test q0.empty() true } }
  49 // { dg-final { note-test q1.empty() false } }
  50 // { dg-final { note-test q0.size() 0 } }
  51 // { dg-final { note-test q1.size()==q1_size true } }
  52 // { dg-final { note-test q2.size()==q2_size true } }
  53 // { dg-final { note-test q3.size()==q3_size true } }
  54 // { dg-final { note-test q1.front() 100 } }
  55 // { dg-final { note-test q2.front() 200 } }
  56 // { dg-final { note-test q3.front() 300 } }
  57 // { dg-final { note-test q1.back()==(100+q1_size-1) true } }
  58 // { dg-final { note-test q2.back()==(200+q2_size-1) true } }
  59 // { dg-final { note-test q3.back()==(300+q3_size-1) true } }
  60 // { dg-final { note-test q3\[0\] 300 } }
  61 // { dg-final { note-test q3\[q3_size/2\]==(300+q3_size/2) true } }
  62 // { dg-final { note-test q3\[q3_size-1]==(300+q3_size-1) true } }
  63
  64 // { dg-final { whatis-test q0.empty() bool } }
  65 // { dg-final { whatis-test q0.size() std::size_t } }
  66 // { dg-final { whatis-test q1.front() int } }
  67 // { dg-final { whatis-test q1.back() int } }
  68 // { dg-final { whatis-test q3\[0\] int } }
  69
  70   return 0;  // Mark SPOT
  71 }
  72
  73 // { dg-final { gdb-test SPOT {} 1 } }