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, 2005, 2006, 2007, 2008
   4 // 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 2, 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 COPYING.  If not, write to the Free
  19 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  20 // USA.
  21
  22 // Tuple
  23
  24 #include <tr1/tuple>
  25 #include <testsuite_hooks.h>
  26
  27 using namespace std::tr1;
  28 using std::pair;
  29
  30 // A simple class without conversions to check some things
  31 struct foo
  32 { };
  33
  34 void
  35 test_constructors()
  36 {
  37   bool test __attribute__((unused)) = true;
  38
  39   int x1=0,x2=0;
  40   const int &z1=x1;
  41
  42   // Test empty constructor
  43   tuple<> ta __attribute__((unused));
  44   tuple<int,int> tb;
  45   // Test construction from values
  46   tuple<int,int> tc(x1,x2);
  47   tuple<int,int&> td(x1,x2);
  48   tuple<const int&> te(z1);
  49   x1=1;
  50   x2=1;
  51   VERIFY(get<0>(td) == 0 && get<1>(td) == 1 && get<0>(te) == 1);
  52
  53   // Test identical tuple copy constructor
  54   tuple<int,int> tf(tc);
  55   tuple<int,int> tg(td);
  56   tuple<const int&> th(te);
  57   // Test different tuple copy constructor
  58   tuple<int,double> ti(tc);
  59   tuple<int,double> tj(td);
  60   // Test constructing from a pair
  61   pair<int,int> pair1(1,1);
  62   const pair<int,int> pair2(pair1);
  63   tuple<int,int> tl(pair1);
  64   tuple<int,const int&> tm(pair1);
  65   tuple<int,int> tn(pair2);
  66   tuple<int,const int&> to(pair2);
  67 }
  68
  69 int
  70 main(void)
  71 {
  72   //test construction
  73   typedef tuple<int,int,int,int,int,int,int,int,int,int> type1;
  74   type1 a(0, 0, 0, 0, 0, 0, 0, 0, 0, 1);
  75   type1 b(0, 0, 0, 0, 0, 0, 0, 0, 0, 2);
  76   type1 c(a);
  77   typedef tuple<int,int,int,int,int,int,int,int,int,char> type2;
  78   type2 d(0, 0, 0, 0, 0, 0, 0, 0, 0, 3);
  79   type1 e(d);
  80   typedef tuple<foo,int,int,int,int,int,int,int,int,foo> type3;
  81   // get
  82   VERIFY(get<9>(a)==1 && get<9>(b)==2);
  83   // comparisons
  84   VERIFY(a==a && !(a!=a) && a<=a && a>=a && !(a<a) && !(a>a));
  85   VERIFY(!(a==b) && a!=b && a<=b && a<b && !(a>=b) && !(a>b));
  86   //tie
  87   {
  88     int i = 0;
  89   tie(ignore, ignore, ignore, ignore, ignore, ignore, ignore, ignore,
  90       ignore, i) = a;
  91   VERIFY(i == 1);
  92   }
  93   //test_assignment
  94   a=d;
  95   a=b;
  96   //make_tuple
  97   make_tuple(0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
  98
  99   //tuple_size
 100   VERIFY(tuple_size<type3>::value == 10);
 101   //tuple_element
 102   {
 103     foo q1;
 104     tuple_element<0,type3>::type q2(q1);
 105     tuple_element<9,type3>::type q3(q1);
 106   }
 107
 108 }
 109