libstdc++-v3/testsuite/tr1/6_containers/tuple/cons/big_tuples.cc

   1 // 2004-09-23 Chris Jefferson <chris@bubblescope.net>
   2
   3 // Copyright (C) 2004-2024 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // Tuple
  21
  22 #include <tr1/tuple>
  23 #include <testsuite_hooks.h>
  24
  25 using namespace std::tr1;
  26 using std::pair;
  27
  28 // A simple class without conversions to check some things
  29 struct foo
  30 { };
  31
  32 void
  33 test_constructors()
  34 {
  35   int x1=0,x2=0;
  36   const int &z1=x1;
  37
  38   // Test empty constructor
  39   tuple<> ta __attribute__((unused));
  40   tuple<int,int> tb;
  41   // Test construction from values
  42   tuple<int,int> tc(x1,x2);
  43   tuple<int,int&> td(x1,x2);
  44   tuple<const int&> te(z1);
  45   x1=1;
  46   x2=1;
  47   VERIFY(get<0>(td) == 0 && get<1>(td) == 1 && get<0>(te) == 1);
  48
  49   // Test identical tuple copy constructor
  50   tuple<int,int> tf(tc);
  51   tuple<int,int> tg(td);
  52   tuple<const int&> th(te);
  53   // Test different tuple copy constructor
  54   tuple<int,double> ti(tc);
  55   tuple<int,double> tj(td);
  56   // Test constructing from a pair
  57   pair<int,int> pair1(1,1);
  58   const pair<int,int> pair2(pair1);
  59   tuple<int,int> tl(pair1);
  60   tuple<int,const int&> tm(pair1);
  61   tuple<int,int> tn(pair2);
  62   tuple<int,const int&> to(pair2);
  63 }
  64
  65 int
  66 main(void)
  67 {
  68   //test construction
  69   typedef tuple<int,int,int,int,int,int,int,int,int,int> type1;
  70   type1 a(0, 0, 0, 0, 0, 0, 0, 0, 0, 1);
  71   type1 b(0, 0, 0, 0, 0, 0, 0, 0, 0, 2);
  72   type1 c(a);
  73   typedef tuple<int,int,int,int,int,int,int,int,int,char> type2;
  74   type2 d(0, 0, 0, 0, 0, 0, 0, 0, 0, 3);
  75   type1 e(d);
  76   typedef tuple<foo,int,int,int,int,int,int,int,int,foo> type3;
  77   // get
  78   VERIFY(get<9>(a)==1 && get<9>(b)==2);
  79   // comparisons
  80   VERIFY(a==a && !(a!=a) && a<=a && a>=a && !(a<a) && !(a>a));
  81   VERIFY(!(a==b) && a!=b && a<=b && a<b && !(a>=b) && !(a>b));
  82   //tie
  83   {
  84     int i = 0;
  85   tie(ignore, ignore, ignore, ignore, ignore, ignore, ignore, ignore,
  86       ignore, i) = a;
  87   VERIFY(i == 1);
  88   }
  89   //test_assignment
  90   a=d;
  91   a=b;
  92   //make_tuple
  93   make_tuple(0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
  94
  95   //tuple_size
  96   VERIFY(tuple_size<type3>::value == 10);
  97   //tuple_element
  98   {
  99     foo q1;
 100     tuple_element<0,type3>::type q2(q1);
 101     tuple_element<9,type3>::type q3(q1);
 102   }
 103
 104 }
 105