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// file : cult/mm/buffer.hxx
// author : Boris Kolpackov <boris@kolpackov.net>
// copyright : Copyright (c) 2005-2010 Boris Kolpackov
// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
#ifndef CULT_MM_BUFFER_HXX
#define CULT_MM_BUFFER_HXX
#include <cult/types/fundamental.hxx>
#include <cult/mm/exception.hxx>
namespace Cult
{
namespace MM
{
//@@ why can't capacity be zero?
//
class Buffer
{
public:
struct Bounds: virtual Exception {};
struct ZeroCapacity: virtual Exception {};
public:
virtual
~Buffer ();
Buffer (Size capacity, Size size = 0)
throw (ZeroCapacity, Bounds, BadAlloc);
Buffer (Void const*, Size size);
Buffer (Buffer const& other);
private:
Buffer&
operator= (Buffer const&);
public:
Size
capacity () const throw ();
// Returns true if the underlying buffer has been moved.
//
Boolean
capacity (Size capacity) throw (ZeroCapacity, Bounds, BadAlloc);
public:
Size
size () const throw ();
Void
size (Size size) throw (Bounds);
public:
Index
position () const throw ();
Void
position (Index) throw (Bounds);
public:
Char const*
data () const;
Char*
data ();
private:
Void* b_;
Size c_, s_, p_;
};
}
using MM::Buffer;
}
#endif // CULT_MM_BUFFER_HXX
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