October 01, 2000
An Improved Variant Type Based on Member Templates
October 2000/An Improved Variant Type Based on Member Templates/Listing 6
#ifndef ARGLIST_H
#define ARGLIST_H
#include<vector>
#include"variant.h"
class ArgumentList
{
public:
// Ctor, Dtor, CopyCtor, and Assign ommited
// because the defaults are apropriate.
template<typename T> void push_back ( T Value )
{ _container.push_back ( variant_t ( Value ) ) ; }
// NOTE: This returns a COPY of the value at pos idx.
template<typename T> T operator [] ( size_t idx ) const
{ return _container [ idx ] ; }
// This form returns a REFERENCE and not a COPY.
template<typename T> const T & at ( size_t idx ) const
{ return _container [ idx ].get<T>() ; }
bool empty() const { return _container.empty(); }
size_t size () const { return _container.size (); }
private:
std::vector<variant_t> _container ;
} ;
#endif
Previous Page |
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
Next Page
