CHAPTER7-21.cpp
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上传日期:2007-07-03
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文件大小:1k
- //文件名:CHAPTER7-21.cpp
- #include <iostream>
- #include <deque>
- #if _MSC_VER > 1020 // if VC++ version is > 4.2
- using namespace std; // std c++ libs implemented in std
- #endif
- typedef deque<char > CHARDEQUE;
- void print_contents (CHARDEQUE deque, char*);
- int main()
- { //create an empty deque a
- CHARDEQUE a;
- //check whether it is empty
- if(a.empty()) cout<<"a is empty"<<endl;
- else cout<<"a is not empty"<<endl;
- //inset A, B, C and D to a
- a.push_back('A');
- a.push_back('B');
- a.push_back('C');
- a.push_back('D');
- //check again whether a is empty
- if(a.empty()) cout<<"a is empty"<<endl;
- else cout<<"a is not empty"<<endl;
- //print out the contents
- print_contents (a,"a");
- cout <<"The first element of a is " <<a[0] <<endl;
- cout <<"The first element of a is " <<a.at(0) <<endl;
- cout <<"The last element of a is " <<a[a.size()-1] <<endl;
- cout <<"The last element of a is " <<a.at(a.size()-1) <<endl;
- }
- //function to print the contents of deque
- void print_contents (CHARDEQUE deque, char *name)
- { CHARDEQUE::iterator pdeque;
- cout <<"The contents of "<< name <<" :";
- for(pdeque = deque.begin(); pdeque != deque.end(); pdeque++)
- { cout <<" " << *pdeque; }
- cout<<endl;
- }