1: //deque10.cpp
3: #include <iostream>
4: #include <deque>
5: using namespace std;
7: int main()
8: {
9: cout << "\nThis program illustrates how one deque can be "
10: "assigned to another deque\nof the same component type, "
11: "using the assignment operator (=), and also\nillustrates "
12: "the use of the assign() member function for assigning "
13: "values\nto a deque.";
14: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
16: cout << "\nFirst we demonstrate use of the assignment operator.";
17: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
19: int a1[] = {1, 2, 3, 4, 5};
20: deque<int> d1(a1, a1+5);
21: cout << "\nFor d1 we have ...";
22: cout << "\nSize = " << d1.size();
23: cout << "\nContents: ";
24: for(deque<int>::size_type i=0; i<d1.size(); i++)
25: cout << d1.at(i) << " ";
26: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
28: int a2[] = {1, 2, 3, 4, 5, 6, 7};
29: deque<int> d2(a2, a2+7);
30: cout << "\nFor d2 we have ...";
31: cout << "\nSize = " << d2.size();
32: cout << "\nContents: ";
33: for(deque<int>::size_type i=0; i<d2.size(); i++)
34: cout << d2.at(i) << " ";
35: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
37: int a3[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
38: deque<int> d3(a3, a3+10);
39: cout << "\nFor d3 we have ...";
40: cout << "\nSize = " << d3.size();
41: cout << "\nContents: ";
42: for(deque<int>::size_type i=0; i<d3.size(); i++)
43: cout << d3.at(i) << " ";
44: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
46: d2 = d1;
47: cout << "\nNow we assign d1 to d2 (d2 = d1). "
48: "\nThen for d2 we have ...";
49: cout << "\nSize = " << d2.size();
50: cout << "\nContents: ";
51: for(deque<int>::size_type i=0; i<d2.size(); i++)
52: cout << d2.at(i) << " ";
53: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
55: d2 = d3;
56: cout << "\nNow we assign d3 to d2 (d2 = d3). "
57: "\nThen for d2 we have ...";
58: cout << "\nSize = " << d2.size();
59: cout << "\nContents: ";
60: for(deque<int>::size_type i=0; i<d2.size(); i++)
61: cout << d2.at(i) << " ";
62: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
64: cout << "\nNow we demonstrate use of the assign() member function.";
65: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
67: int a4[] = {2, 4, 6, 8};
68: deque<int> d4(a4, a4+4);
69: cout << "\nFor d4 we have ...";
70: cout << "\nSize = " << d4.size();
71: cout << "\nContents: ";
72: for(deque<int>::size_type i=0; i<d4.size(); i++)
73: cout << d4.at(i) << " ";
74: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
76: d4.assign(3, 10);
77: cout << "\nNow we perform d4.assign(3, 10). "
78: "\nThen for d4 we have ...";
79: cout << "\nSize = " << d4.size();
80: cout << "\nContents: ";
81: for(deque<int>::size_type i=0; i<d4.size(); i++)
82: cout << d4.at(i) << " ";
83: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
85: d4.assign(6, 12);
86: cout << "\nNow we perform d4.assign(6, 12). "
87: "\nThen for d4 we have ...";
88: cout << "\nSize = " << d4.size();
89: cout << "\nContents: ";
90: for(deque<int>::size_type i=0; i<d4.size(); i++)
91: cout << d4.at(i) << " ";
92: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
94: int a5[] = {1, 3, 5, 7, 9};
95: deque<int> d5(a5, a5+5);
96: cout << "\nFor d5 we have ...";
97: cout << "\nSize = " << d5.size();
98: cout << "\nContents: ";
99: for(deque<int>::size_type i=0; i<d5.size(); i++)
100: cout << d5.at(i) << " ";
101: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
103: int a6[] = {2, 4, 6, 8, 10, 12, 14, 16, 18, 20};
104: deque<int> d6(a6, a6+10);
105: cout << "\nFor d6 we have ...";
106: cout << "\nSize = " << d6.size();
107: cout << "\nContents: ";
108: for(deque<int>::size_type i=0; i<d6.size(); i++)
109: cout << d6.at(i) << " ";
110: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
112: d5.assign(d6.begin()+2, d6.begin()+5);
113: cout << "\nNow we perform d5.assign(d6.begin()+2, d6.begin()+5). "
114: "\nThen for d5 we have ...";
115: cout << "\nSize = " << d5.size();
116: cout << "\nContents: ";
117: for(deque<int>::size_type i=0; i<d5.size(); i++)
118: cout << d5.at(i) << " ";
119: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
121: d5.assign(d6.begin()+1, d6.begin()+8);
122: cout << "\nNow we perform d5.assign(d6.begin()+1, d6.begin()+8). "
123: "\nThen for d5 we have ...";
124: cout << "\nSize = " << d5.size();
125: cout << "\nContents: ";
126: for(deque<int>::size_type i=0; i<d5.size(); i++)
127: cout << d5.at(i) << " ";
128: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
129: }