database.h

来自「Thinking in c++ 2nd edition,c++编程思想（第2版）」· C头文件 代码 · 共 32 行

//: C09:Database.h
// From "Thinking in C++, Volume 2", by Bruce Eckel & Chuck Allison.
// (c) 1995-2004 MindView, Inc. All Rights Reserved.
// See source code use permissions stated in the file 'License.txt',
// distributed with the code package available at www.MindView.net.
// A prototypical resource class.
#ifndef DATABASE_H
#define DATABASE_H
#include <iostream>
#include <stdexcept>
#include <string>

struct DatabaseError : std::runtime_error {
  DatabaseError(const std::string& msg)
    : std::runtime_error(msg) {}
};

class Database {
  std::string dbid;
public:
  Database(const std::string& dbStr) : dbid(dbStr) {}
  virtual ~Database() {}
  void open() throw(DatabaseError) {
    std::cout << "Connected to " << dbid << std::endl;
  }
  void close() {
    std::cout << dbid << " closed" << std::endl;
  }
  // Other database functions...
};
#endif // DATABASE_H ///:~