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diff --git a/ast/switchmap.h b/ast/switchmap.h
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-#if !defined( SWITCHMAP_INCLUDED ) /* Include this file only once */
-#define SWITCHMAP_INCLUDED
-/*
-*+
-* Name:
-* switchmap.h
-
-* Type:
-* C include file.
-
-* Purpose:
-* Define the interface to the SwitchMap class.
-
-* Invocation:
-* #include "switchmap.h"
-
-* Description:
-* This include file defines the interface to the SwitchMap class and
-* provides the type definitions, function prototypes and macros,
-* etc. needed to use this class.
-
-* Inheritance:
-* The SwitchMap class inherits from the Mapping class.
-
-* Attributes Over-Ridden:
-* None.
-
-* New Attributes Defined:
-* None.
-
-* Methods Over-Ridden:
-* Public:
-* None.
-*
-* Protected:
-* astMapMerge
-* Merge a SwitchMap within a sequence of Mappings.
-* astTransform
-* Transform a set of points.
-
-* New Methods Defined:
-* Public:
-* None.
-*
-* Protected:
-* None.
-
-* Other Class Functions:
-* Public:
-* astIsASwitchMap
-* Test class membership.
-* astSwitchMap
-* Create a SwitchMap.
-*
-* Protected:
-* astCheckSwitchMap
-* Validate class membership.
-* astInitSwitchMap
-* Initialise a SwitchMap.
-* astInitSwitchMapVtab
-* Initialise the virtual function table for the SwitchMap class.
-* astLoadSwitchMap
-* Load a SwitchMap.
-
-* Macros:
-* None.
-
-* Type Definitions:
-* Public:
-* AstSwitchMap
-* SwitchMap object type.
-*
-* Protected:
-* AstSwitchMapVtab
-* SwitchMap virtual function table type.
-
-* Feature Test Macros:
-* astCLASS
-* If the astCLASS macro is undefined, only public symbols are
-* made available, otherwise protected symbols (for use in other
-* class implementations) are defined. This macro also affects
-* the reporting of error context information, which is only
-* provided for external calls to the AST library.
-
-* Copyright:
-* Copyright (C) 1997-2006 Council for the Central Laboratory of the
-* Research Councils
-
-* Licence:
-* This program is free software: you can redistribute it and/or
-* modify it under the terms of the GNU Lesser General Public
-* License as published by the Free Software Foundation, either
-* version 3 of the License, or (at your option) any later
-* version.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-* GNU Lesser General Public License for more details.
-*
-* You should have received a copy of the GNU Lesser General
-* License along with this program. If not, see
-* <http://www.gnu.org/licenses/>.
-
-* Authors:
-* DSB: David S. Berry (Starlink)
-
-* History:
-* 13-MAR-2006 (DSB):
-* Original version.
-*-
-*/
-
-/* Include files. */
-/* ============== */
-/* Interface definitions. */
-/* ---------------------- */
-#include "mapping.h" /* Coordinate Mappings (parent class) */
-
-#if defined(astCLASS) /* Protected */
-#include "pointset.h" /* Sets of points/coordinates */
-#include "channel.h" /* I/O channels */
-#endif
-
-/* C header files. */
-/* --------------- */
-#if defined(astCLASS) /* Protected */
-#include <stddef.h>
-#endif
-
-/* Macros */
-/* ====== */
-
-/* Define a dummy __attribute__ macro for use on non-GNU compilers. */
-#ifndef __GNUC__
-# define __attribute__(x) /*NOTHING*/
-#endif
-
-/* Type Definitions. */
-/* ================= */
-/* SwitchMap structure. */
-/* ----------------- */
-/* This structure contains all information that is unique to each
- object in the class (e.g. its instance variables). */
-typedef struct AstSwitchMap {
-
-/* Attributes inherited from the parent class. */
- AstMapping mapping; /* Parent class structure */
-
-/* Attributes specific to objects in this class. */
- AstMapping *fsmap; /* Pointer to forward selector Mapping */
- AstMapping *ismap; /* Pointer to inverse selector Mapping */
- int fsinv; /* Inversion flag for forward selector Mapping */
- int isinv; /* Inversion flag for inverse selector Mapping */
- int nroute; /* The number of route Mappings in the SwitchMap */
- AstMapping **routemap; /* Array of route Mapping pointers */
- int *routeinv; /* Array of inversion flags for route Mappings */
-} AstSwitchMap;
-
-/* Virtual function table. */
-/* ----------------------- */
-/* This table contains all information that is the same for all
- objects in the class (e.g. pointers to its virtual functions). */
-#if defined(astCLASS) /* Protected */
-typedef struct AstSwitchMapVtab {
-
-/* Properties (e.g. methods) inherited from the parent class. */
- AstMappingVtab mapping_vtab; /* Parent class virtual function table */
-
-/* A Unique identifier to determine class membership. */
- AstClassIdentifier id;
-
-/* Properties (e.g. methods) specific to this class. */
-/* None. */
-} AstSwitchMapVtab;
-
-#if defined(THREAD_SAFE)
-
-/* Define a structure holding all data items that are global within the
- object.c file. */
-
-typedef struct AstSwitchMapGlobals {
- AstSwitchMapVtab Class_Vtab;
- int Class_Init;
-} AstSwitchMapGlobals;
-
-
-/* Thread-safe initialiser for all global data used by this module. */
-void astInitSwitchMapGlobals_( AstSwitchMapGlobals * );
-
-#endif
-
-
-#endif
-
-/* Function prototypes. */
-/* ==================== */
-/* Prototypes for standard class functions. */
-/* ---------------------------------------- */
-astPROTO_CHECK(SwitchMap) /* Check class membership */
-astPROTO_ISA(SwitchMap) /* Test class membership */
-
-/* Constructor. */
-#if defined(astCLASS) /* Protected. */
-AstSwitchMap *astSwitchMap_( void *, void *, int, void **, const char *, int *, ...);
-#else
-AstSwitchMap *astSwitchMapId_( void *, void *, int, void **, const char *, ... )__attribute__((format(printf,5,6)));
-#endif
-
-#if defined(astCLASS) /* Protected */
-
-/* Initialiser. */
-AstSwitchMap *astInitSwitchMap_( void *, size_t, int, AstSwitchMapVtab *,
- const char *, AstMapping *, AstMapping *,
- int, AstMapping **, int * );
-
-/* Vtab initialiser. */
-void astInitSwitchMapVtab_( AstSwitchMapVtab *, const char *, int * );
-
-/* Loader. */
-AstSwitchMap *astLoadSwitchMap_( void *, size_t, AstSwitchMapVtab *,
- const char *, AstChannel *, int * );
-#endif
-
-/* Prototypes for member functions. */
-/* -------------------------------- */
-#if defined(astCLASS) /* Protected */
-
-int astSwitchList_( AstSwitchMap *, int, int *, AstMapping ***, int **, int * );
-
-#endif
-
-
-/* Function interfaces. */
-/* ==================== */
-/* These macros are wrap-ups for the functions defined by this class
- to make them easier to invoke (e.g. to avoid type mis-matches when
- passing pointers to objects from derived classes). */
-
-/* Interfaces to standard class functions. */
-/* --------------------------------------- */
-/* Some of these functions provide validation, so we cannot use them
- to validate their own arguments. We must use a cast when passing
- object pointers (so that they can accept objects from derived
- classes). */
-
-/* Check class membership. */
-#define astCheckSwitchMap(this) astINVOKE_CHECK(SwitchMap,this,0)
-#define astVerifySwitchMap(this) astINVOKE_CHECK(SwitchMap,this,1)
-
-/* Test class membership. */
-#define astIsASwitchMap(this) astINVOKE_ISA(SwitchMap,this)
-
-/* Constructor. */
-#if defined(astCLASS) /* Protected. */
-#define astSwitchMap astINVOKE(F,astSwitchMap_)
-#else
-#define astSwitchMap astINVOKE(F,astSwitchMapId_)
-#endif
-
-#if defined(astCLASS) /* Protected */
-
-/* Initialiser. */
-#define astInitSwitchMap(mem,size,init,vtab,name,fsmap,ismap,nroute,routemaps) \
-astINVOKE(O,astInitSwitchMap_(mem,size,init,vtab,name,astCheckMapping(fsmap),\
- astCheckMapping(ismap),nroute,routemaps,STATUS_PTR))
-
-/* Vtab Initialiser. */
-#define astInitSwitchMapVtab(vtab,name) astINVOKE(V,astInitSwitchMapVtab_(vtab,name,STATUS_PTR))
-/* Loader. */
-#define astLoadSwitchMap(mem,size,vtab,name,channel) \
-astINVOKE(O,astLoadSwitchMap_(mem,size,vtab,name,astCheckChannel(channel),STATUS_PTR))
-
-#define astSwitchList astSwitchList_
-
-#endif
-
-/* Interfaces to public member functions. */
-/* -------------------------------------- */
-/* Here we make use of astCheckSwitchMap to validate SwitchMap pointers
- before use. This provides a contextual error report if a pointer
- to the wrong sort of Object is supplied. */
-/* None. */
-#endif
-
-
-
-
-