gzdoom/src/autosegs.h
Randy Heit 93202a5488 - Removed -fno-strict-aliasing from the GCC flags for ZDoom and fixed the
issues that caused its inclusion. Is an optimized GCC build any faster
  for being able to use strict aliasing rules? I dunno. It's still slower
  than a VC++ build.
  
  I did run into two cases where TAutoSegIterator caused intractable problems
  with breaking strict aliasing rules, so I removed the templating from it,
  and the caller is now responsible for casting the probe value from void *.
- Removed #include "autosegs.h" from several files that did not need it
  (in particular, dobject.h when not compiling with VC++).


SVN r1743 (trunk)
2009-08-02 03:38:57 +00:00

102 lines
2.8 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
#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;
class FAutoSegIterator
{
public:
FAutoSegIterator(REGINFO &head, REGINFO &tail)
{
// Weirdness. Mingw's linker puts these together backwards.
if (&head <= &tail)
{
Head = &head;
Tail = &tail;
}
else
{
Head = &tail;
Tail = &head;
}
Probe = Head;
}
REGINFO operator*() const
{
return *Probe;
}
FAutoSegIterator &operator++()
{
do
{
++Probe;
} while (*Probe == 0 && Probe < Tail);
return *this;
}
void Reset()
{
Probe = Head;
}
protected:
REGINFO *Probe;
REGINFO *Head;
REGINFO *Tail;
};
#endif