libstdc++-v3/testsuite/23_containers/unordered_multimap/modifiers/emplace.cc

   1 // { dg-options "-std=gnu++0x" }
   2
   3 // Copyright (C) 2011-2013 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 // range insert
  21
  22 #include <tuple>
  23 #include <vector>
  24 #include <unordered_map>
  25 #include <testsuite_hooks.h>
  26
  27 class PathPoint
  28 {
  29 public:
  30   PathPoint(char t, const std::vector<double>& c)
  31   : type(t), coords(c) { }
  32   PathPoint(char t, std::vector<double>&& c)
  33   : type(t), coords(std::move(c)) { }
  34   char getType() const { return type; }
  35   const std::vector<double>& getCoords() const { return coords; }
  36 private:
  37   char type;
  38   std::vector<double> coords;
  39 };
  40
  41 bool test __attribute__((unused)) = true;
  42
  43 void test01()
  44 {
  45   typedef std::unordered_multimap<char, std::vector<double>> MMap;
  46   MMap mm;
  47
  48   std::vector<double> coord1 = { 0.0, 1.0, 2.0 };
  49
  50   auto it = mm.emplace('a', coord1);
  51   VERIFY( mm.size() == 1 );
  52   VERIFY( it->first == 'a' );
  53
  54   coord1[0] = 3.0;
  55   it = mm.emplace('a', coord1);
  56   VERIFY( mm.size() == 2 );
  57   VERIFY( it->first == 'a' );
  58   VERIFY( it->second[0] == 3.0 );
  59
  60   it = mm.emplace_hint(mm.begin(), 'b', coord1);
  61   VERIFY( it != mm.end() );
  62   VERIFY( it->first == 'b' );
  63   VERIFY( it->second[0] == 3.0 );
  64
  65   double *px = &coord1[0];
  66   it = mm.emplace('c', std::move(coord1));
  67   VERIFY( it->first == 'c' );
  68   VERIFY( &(it->second[0]) == px );
  69 }
  70
  71 void test02()
  72 {
  73   using namespace std;
  74   typedef unordered_multimap<char, PathPoint> Map;
  75   Map m;
  76
  77   std::vector<double> coord1 = { 0.0, 1.0, 2.0 };
  78
  79   auto it = m.emplace(piecewise_construct,
  80                        make_tuple('a'), make_tuple('a', coord1));
  81   VERIFY( m.size() == 1 );
  82   VERIFY( it->first == 'a' );
  83
  84   coord1[0] = 3.0;
  85   it = m.emplace(piecewise_construct,
  86                   make_tuple('a'), make_tuple( 'b', coord1));
  87   VERIFY( m.size() == 2 );
  88   VERIFY( it->first == 'a' );
  89   VERIFY( it->second.getCoords()[0] == 3.0 );
  90
  91   it = m.emplace_hint(m.begin(), piecewise_construct,
  92                       make_tuple('b'), make_tuple('c', coord1));
  93   VERIFY( it != m.end() );
  94   VERIFY( it->first == 'b' );
  95   VERIFY( it->second.getCoords()[0] == 3.0 );
  96
  97   double *px = &coord1[0];
  98   it = m.emplace(piecewise_construct,
  99                   make_tuple('c'), make_tuple('d', move(coord1)));
 100   VERIFY( it->first == 'c' );
 101   VERIFY( &(it->second.getCoords()[0]) == px );
 102 }
 103
 104
 105 int main()
 106 {
 107   test01();
 108   test02();
 109   return 0;
 110 }