Mega Code Archive
Using a queue to store user-defined object
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#include <iostream>
#include <queue>
#include <string>
using namespace std;
template <class T>
void print(T& c){
for( typename T::iterator i = c.begin(); i != c.end(); i++ ){
std::cout << *i << endl;
}
}
class Vehicle{
public:
Vehicle( string description = "Unknown car",string license = "Unknown license", bool wax = false );
string description() const;
string license() const;
bool wax() const;
private:
string description_, license_;
bool wax_;
};
inline
Vehicle::Vehicle( string description, string license, bool wax )
: description_( description ), license_( license ), wax_( wax )
{} // empty
string Vehicle::description() const
{ return description_; }
string Vehicle::license() const
{ return license_; }
bool Vehicle::wax() const
{ return wax_; }
int main( )
{
const char* description[] = { "A", "B","C", "D","E" };
const char* license[] = { "a", "b", "c","d", "e" };
const bool wax[] = { false, true, false, true, false };
const int num_cars = sizeof( wax ) / sizeof( wax[0] );
queue<Vehicle> line;
int count = 0;
while( count < num_cars || !line.empty() )
{
for( int i = 0; i < 2; ++i )
if( count < num_cars )
{
cout << "A " << description[count] << ", license " << license[count] << ", is here for a wash";
if( wax[count] )
cout << " and a wax";
cout << endl << endl;
line.push( Vehicle( description[count], license[count],wax[count] ) );
++count;
}
else
break;
cout << "ATTENTION PLEASE: a " << line.front().description()
<< ", license " << line.front().license()
<< ",\n\has been carefully washed ";
if( line.front().wax() )
cout << "and waxed ";
cout << "and is available for pick-up\n\n";
line.pop();
}
}
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