construct.h

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 *
 * Copyright (C) 1997-2024 by Dimitri van Heesch.
 *
 * Permission to use, copy, modify, and distribute this software and its
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 * See the GNU General Public License for more details.
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#ifndef CONSTRUCT_H
#define CONSTRUCT_H
 
//! Macro to implement rule of 5 for an abstract base class
#define ABSTRACT_BASE_CLASS(cls)                  \
    cls() = default;                              \
    cls(const cls &) = delete;                    \
    cls &operator=(const cls &) = delete;         \
    cls(cls &&) = delete;                         \
    cls &operator=(cls &&) = delete;              \
    virtual ~cls() = default;                     \
 
//! Macro to help implementing the rule of 5 for a default copyable & movable class
#define DEFAULT_COPYABLE(cls)                     \
    cls(const cls &) = default;                   \
    cls &operator=(const cls &) = default;        \
    cls(cls &&) = default;                        \
    cls &operator=(cls &&) = default;             \
    virtual ~cls() = default;
 
//! Macro to help implementing the rule of 5 for a non-copyable & movable class
#define NON_COPYABLE(cls)                         \
    cls(const cls &) = delete;                    \
    cls &operator=(const cls &) = delete;         \
    cls(cls &&) = delete;                         \
    cls &operator=(cls &&) = delete;              \
 
//! Macro to help implementing the rule of 5 for a class that can be moved but not copied
#define ONLY_DEFAULT_MOVABLE(cls)                 \
    cls(const cls &) = delete;                    \
    cls &operator=(const cls &) = delete;         \
    cls(cls &&) = default;                        \
    cls &operator=(cls &&) = default;             \
 
#define ONLY_MOVABLE_DECL(cls)                    \
    cls(const cls &) = delete;                    \
    cls &operator=(const cls &) = delete;         \
    cls(cls &&);                                  \
    cls &operator=(cls &&);                       \
 
#define DEFAULT_MOVABLE_IMPL(cls)                 \
    cls::cls(cls &&) = default;                   \
    cls &cls::operator=(cls &&) = default;        \
 
#endif