gzdoom/src/autosegs.h
2009-02-05 04:18:08 +00:00

129 lines
3.4 KiB
C++

/*
** autosegs.h
** Arrays built at link-time
**
**---------------------------------------------------------------------------
** Copyright 1998-2006 Randy Heit
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/
#ifndef AUTOSEGS_H
#define AUTOSEGS_H
#ifdef __GNUC__
#ifdef __MACH__
#define AREG_SECTION "__DATA,areg"
#define CREG_SECTION "__DATA,creg"
#define GREG_SECTION "__DATA,greg"
#define MREG_SECTION "__DATA,mreg"
#define YREG_SECTION "__DATA,yreg"
#else
#define AREG_SECTION "areg"
#define CREG_SECTION "creg"
#define GREG_SECTION "greg"
#define MREG_SECTION "mreg"
#define YREG_SECTION "yreg"
#endif
#endif
#define REGMARKER(x) (x)
typedef void *REGINFO;
// List of Action functons
extern REGINFO ARegHead;
extern REGINFO ARegTail;
// List of TypeInfos
extern REGINFO CRegHead;
extern REGINFO CRegTail;
// List of properties
extern REGINFO GRegHead;
extern REGINFO GRegTail;
// List of variables
extern REGINFO MRegHead;
extern REGINFO MRegTail;
// List of MAPINFO map options
extern REGINFO YRegHead;
extern REGINFO YRegTail;
template<class T, REGINFO *_head, REGINFO *_tail>
class TAutoSegIteratorNoArrow
{
public:
TAutoSegIteratorNoArrow ()
{
// Weirdness. Mingw's linker puts these together backwards.
if (_head < _tail)
{
Head = _head;
Tail = _tail;
}
else
{
Head = _tail;
Tail = _head;
}
Probe = (T *)REGMARKER(Head);
}
operator T () const
{
return *Probe;
}
TAutoSegIteratorNoArrow &operator++()
{
do
{
++Probe;
} while (*Probe == 0 && Probe < (T *)REGMARKER(Tail));
return *this;
}
void Reset ()
{
Probe = (T *)REGMARKER(Head);
}
protected:
T *Probe;
REGINFO *Head;
REGINFO *Tail;
};
template<class T, REGINFO *head, REGINFO *tail>
class TAutoSegIterator : public TAutoSegIteratorNoArrow<T, head, tail>
{
public:
T operator->() const
{
return *(this->Probe);
}
};
#endif