update ast

1 files changed, 0 insertions, 1960 deletions

diff --git a/ast/object.h.in b/ast/object.h.in
deleted file mode 100644
index 64720ff..0000000
--- a/ast/object.h.in
+++ /dev/null
@@ -1,1960 +0,0 @@
-#if !defined( OBJECT_INCLUDED )  /* Include this file only once */
-#define OBJECT_INCLUDED
-/*
-*++
-*  Name:
-*     object.h
-
-*  Type:
-*     C include file.
-
-*  Purpose:
-*     Define the interface to the Object class.
-
-*  Invocation:
-*     #include "object.h"
-
-*  Description:
-*     This include file defines the interface to the Object class and
-*     provides the type definitions, function prototypes and macros,
-*     etc.  needed to use this class.
-
-*     The Object class is the base class from which all other classes
-*     in the AST library are derived. This class provides all the
-*     basic Object behaviour and Object manipulation facilities
-*     required throughout the library. There is no Object constructor,
-*     however, as Objects on their own are not of much use.
-
-*  Inheritance:
-*     The Object base class does not inherit from any other class.
-
-*  Attributes Over-Ridden:
-*     None.
-
-*  New Attributes Defined:
-*     Class (string)
-*        This is a read-only attribute containing the name of the
-*        class to which an Object belongs.
-*     ID (string)
-*        An identification string which may be used to identify the
-*        Object (e.g.) in debugging output, or when stored in an
-*        external medium such as a data file. There is no restriction
-*        on the string's contents. The default is an empty string.
-*     Ident (string)
-*        Like ID, this is an identification string which may be used
-*        to identify the Object. Unlike ID, Ident is transferred when an
-*        Object is copied.
-*     UseDefs (int)
-*        Should default values be used for unset attributes?
-*     Nobject (integer)
-*        This is a read-only attribute which gives the total number of
-*        Objects currently in existence in the same class as the
-*        Object given. It does not include Objects which belong to
-*        derived (more specialised) classes. This value is mainly
-*        intended for debugging, as it can be used to show whether
-*        Objects which should have been deleted have, in fact, been
-*        deleted.
-*     ObjSize (int)
-*        The in-memory size of the Object in bytes.
-*     RefCount (integer)
-*        This is a read-only Attribute which gives the "reference
-*        count" (the number of active pointers) associated with an
-*        Object. It is modified whenever pointers are created or
-*        annulled (by astClone or astAnnul/astEnd for example) and
-*        includes the initial pointer issued when the Object was
-*        created. If the reference count for an Object falls to zero
-*        as the result of annulling a pointer to it, then the Object
-*        will be deleted.
-
-*  Methods Over-Ridden:
-*     None.
-
-*  New Methods Defined:
-*     Public:
-*        astAnnul
-*           Annul a pointer to an Object.
-*        astClear
-*           Clear attribute values for an Object.
-*        astClone
-*           Clone a pointer to an Object.
-*        astCopy
-*           Copy an Object.
-*        astDelete
-*           Delete an Object.
-*        astExempt
-*           Exempt an Object pointer from AST context handling
-*        astExport
-*           Export an Object pointer to an outer context.
-*        astGet<X>, where <X> = C, D, F, I, L
-*           Get an attribute value for an Object.
-*        astImport
-*           Import an Object pointer into the current context.
-*        astSame
-*           Return true if two pointers refer to the same object.
-*        astSet
-*           Set attribute values for an Object.
-*        astSet<X>, where <X> = C, D, F, I, L
-*           Set an attribute value for an Object.
-*        astShow
-*           Display a textual representation of an Object on standard output.
-*        astTest
-*           Test if an attribute value is set for an Object.
-*        astTune
-*           Get or set the value of a global AST tuning parameter.
-*
-*     Protected:
-*        astAnnulId
-*           Annul an external ID for an Object (for use from protected code
-*           which must handle external IDs).
-*        astClearAttrib
-*           Clear the value of a specified attribute for an Object.
-*        astClearID
-*           Clear the value of the ID attribute for an Object.
-*        astClearIdent
-*           Clear the value of the Ident attribute for an Object.
-*        astCast
-*           Return a deep copy of an object, cast into an instance of a
-*           parent class.
-*        astDump
-*           Write an Object to a Channel.
-*        astEqual
-*           Are two Objects equivalent?
-*        astGetAttrib
-*           Get the value of a specified attribute for an Object.
-*        astGetClass (deprecated synonym astClass)
-*           Obtain the value of the Class attribute for an Object.
-*        astGetID
-*           Obtain the value of the ID attribute for an Object.
-*        astGetIdent
-*           Obtain the value of the Ident attribute for an Object.
-*        astGetNobject
-*           Obtain the value of the Nobject attribute for an Object.
-*        astGetRefCount
-*           Obtain the value of the RefCount attribute for an Object.
-*        astSetAttrib
-*           Set the value of a specified attribute for an Object.
-*        astSetCopy
-*           Declare a copy constructor for an Object.
-*        astSetDelete
-*           Declare a destructor for an Object.
-*        astSetDump
-*           Declare a dump function for an Object.
-*        astSetVtab
-*           Chaneg the virtual function table associated with an Object.
-*        astSetID
-*           Set the value of the ID attribute for an Object.
-*        astSetIdent
-*           Set the value of the Ident attribute for an Object.
-*        astTestAttrib
-*           Test if a specified attribute value is set for an Object.
-*        astTestID
-*           Test whether the ID attribute for an Object is set.
-*        astTestIdent
-*           Test whether the Ident attribute for an Object is set.
-*        astVSet
-*           Set values for an Object's attributes.
-
-*  Other Class Functions:
-*     Public:
-*        astBegin
-*           Begin a new AST context.
-*        astEnd
-*           End an AST context.
-*        astIsAObject
-*           Test class membership.
-*        astVersion
-*           Returns the AST library version number.
-*        astEscapes
-*           Remove escape sequences from returned text strings?
-*        astP2I
-*           Retrieve an int from a pointer.
-*        astI2P
-*           Pack an int into a pointer.
-*
-*     Protected:
-*        astCheckObject
-*           Validate class membership.
-*        astInitObject
-*           Initialise an Object.
-*        astInitObjectVtab
-*           Initialise the virtual function table for the Object class.
-*        astLoadObject
-*           Load an Object.
-*        astMakeId
-*           Issue an identifier for an Object.
-*        astMakePointer
-*           Obtain a true C pointer from an Object identifier.
-
-*  Macros:
-*     Public:
-*        AST__NULL
-*           Null Object pointer value.
-*        AST__VMAJOR
-*           The AST library major version number.
-*        AST__VMINOR
-*           The AST library minor version number.
-*        AST__RELEASE
-*           The AST library release number.
-*
-*     Protected:
-*        astEQUAL
-*           Compare two doubles for equality.
-*        astMAX
-*           Return maximum of two values.
-*        astMIN
-*           Return minimum of two values.
-*        astMAKE_CHECK
-*           Implement the astCheck<Class>_ function for a class.
-*        astMAKE_CLEAR
-*           Implement a method to clear an attribute value for a class.
-*        astMAKE_GET
-*           Implement a method to get an attribute value for a class.
-*        astMAKE_ISA
-*           Implement the astIsA<Class>_ function for a class.
-*        astMAKE_SET
-*           Implement a method to set an attribute value for a class.
-*        astMAKE_TEST
-*           Implement a method to test if an attribute has been set for a
-*           class.
-*        astMEMBER
-*           Locate a member function.
-
-*  Type Definitions:
-*     Public:
-*        AstObject
-*           Object type.
-*
-*     Protected:
-*        AstObjectVtab
-*           Object virtual function table type.
-
-*  Feature Test Macros:
-*     AST_CHECK_CLASS
-*        If the AST_CHECK_CLASS macro is defined, then Object class
-*        checking is enabled for all internal function invocations
-*        within the AST library. Otherwise, this checking is
-*        omitted. This macro should normally be defined as a compiler
-*        option during library development and debugging, but left
-*        undefined for software releases, so as to improve
-*        peformance. Class checking by the AST public interface is not
-*        affected by this macro.
-*     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.
-*     astFORTRAN77
-*        If the astFORTRAN77 macro is defined, reporting of error
-*        context information is suppressed. This is necessary when
-*        implementing foreign language interfaces to the AST library, as
-*        otherwise the file names and line numbers given would refer
-*        to the interface implementation rather than the user's own
-*        code.
-
-*  Copyright:
-*     Copyright (C) 1997-2006 Council for the Central Laboratory of the
-*     Research Councils
-*     Copyright (C) 2010 Science & Technology Facilities Council.
-*     All Rights Reserved.
-
-*  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:
-*     RFWS: R.F. Warren-Smith (Starlink)
-*     DSB: David S. Berry (Starlink)
-
-*  History:
-*     30-JAN-1996 (RFWS):
-*        Original version.
-*     19-APR-1996 (RFWS):
-*        Added macros for implementing attribute access methods.
-*     3-JUL-1996 (RFWS):
-*        Added new definitions to support the external interface.
-*     10-SEP-1996 (RFWS):
-*        Added loader and related facilities.
-*     30-MAY-1997 (RFWS):
-*        Add the ID attribute.
-*     14-JUL-1997 (RFWS):
-*        Add astExempt function.
-*     20-JAN-1998 (RFWS):
-*        Make the astClear and astVSet methods virtual.
-*     15-SEP-1999 (RFWS):
-*        Made the astAnnulId function accessible to protected code.
-*     3-APR-2001 (DSB):
-*        Added Ident attribute.
-*     8-JAN-2003 (DSB):
-*        Added protected astInitObjectVtab method.
-*     30-APR-2003 (DSB):
-*        Added macros AST__VMAJOR, AST__VMINOR and AST__RELEASE.
-*        Added astVersion function.
-*     7-FEB-2004 (DSB):
-*        Added astEscapes function.
-*     11-MAR-2005 (DSB):
-*        Added UseDefs attribute.
-*     7-FEB-2006 (DSB):
-*        Added astTune function.
-*     14-FEB-2006 (DSB):
-*        Added ObjSize attribute.
-*     23-FEB-2006 (DSB):
-*        Moved AST__TUNULL from this file to memory.h.
-*     10-MAY-2006 (DSB):
-*        Added astEQUAL, astMAX and astMIN.
-*     26-MAY-2006 (DSB):
-*        Make all system includes unconditional, so that makeh is not
-*        confused when creating ast.h.
-*     22-JUN-2007 (DSB):
-*        - Make astVSet return a pointer to dynamic memory holding the
-*        expanded setting string.
-*        - Add ast astSetVtab and astCast.
-*     22-APR-2008 (DSB):
-*        Added astSame.
-*     7-APR-2010 (DSB):
-*        Added astHasAttribute.
-*--
-*/
-
-/* Include files. */
-/* ============== */
-/* Configuration results. */
-/* ---------------------- */
-#if HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-/* Interface definitions. */
-/* ---------------------- */
-#include "error.h"               /* Error reporting facilities */
-#include "version.h"             /* Version number macros */
-
-/* C header files. */
-/* --------------- */
-#include <stddef.h>
-#include <stdarg.h>
-#include <float.h>
-#include <stdio.h>
-
-#if defined(THREAD_SAFE)
-#include <pthread.h>
-#endif
-
-/* Macros. */
-/* ======= */
-#if defined(astCLASS) || defined(astFORTRAN77)
-#define STATUS_PTR status
-#else
-#define STATUS_PTR astGetStatusPtr
-#endif
-
-/* Define a dummy __attribute__ macro for use on non-GNU compilers. */
-#ifndef __GNUC__
-#  define  __attribute__(x)  /*NOTHING*/
-#endif
-
-/* Set to "1" (yes) or "0" (no) to indicate if AST was build with threads
-   support. */
-#define AST__THREADSAFE @THREADS@
-
-#if defined(astCLASS )
-#define AST__GETATTRIB_BUFF_LEN 50 /* Length of string returned by GetAttrib. */
-#define AST__ASTGETC_MAX_STRINGS 50 /* Number of string values to buffer within astGetC */
-
-/* Values supplied to astManageLock */
-#define AST__LOCK 1      /* Lock the object */
-#define AST__UNLOCK 2    /* Unlock the object */
-#define AST__CHECKLOCK 3 /* Check if the object is locked */
-
-/* Values returned by astThread */
-#define AST__UNLOCKED 1  /* Object is unlocked */
-#define AST__RUNNING 2   /* Object is locked by the running thread */
-#define AST__OTHER 3     /* Object is locked by another thread */
-
-#endif
-
-/* Value that indicates that two classes are not in direct line from each
-   other. */
-#if defined(astCLASS )
-#define AST__COUSIN -1000000
-#endif
-
-/* Number of digits to use when formatting double precision floating point
-   values. DBL_DIG ensures no loss when round-tripping from text to
-   binary to text, but we want no loss when round-tripping from binary to
-   text to binary, so we use DBL_DECIMAL_DIG instead. If this is not
-   avaialable we use DBL_DIG but add on an extra 3 digits. */
-#ifdef DBL_DECIMAL_DIG
-  #define AST__DBL_DIG (DBL_DECIMAL_DIG)
-#else
-  #define AST__DBL_DIG (DBL_DIG + 3)
-#endif
-
-#ifdef FLT_DECIMAL_DIG
-  #define AST__FLT_DIG (FLT_DECIMAL_DIG)
-#else
-  #define AST__FLT_DIG (FLT_DIG + 3)
-#endif
-
-
-
-
-/*
-*+
-*  Name:
-*     astINVOKE
-
-*  Type:
-*     Protected macro.
-
-*  Purpose:
-*     Invoke an AST function.
-
-*  Synopsis:
-*     #include "object.h"
-*     astINVOKE(rettype,function)
-
-*  Class Membership:
-*     Defined by the Object class.
-
-*  Description:
-*     This macro expands to an invocation of an AST function, together
-*     with any additional actions required to support it.  The actual
-*     expansion depends on whether the macro is expanded in internal
-*     code (astCLASS defined) or external code (astCLASS undefined)
-*     and it therefore hides the differences between these two
-*     interfaces.
-
-*  Parameters:
-*     rettype
-*        A character to indicate the type of result returned by the function:
-*
-*        V
-*           The function returns a value (including void or a pointer
-*           value, but excluding an Object pointer). astINVOKE will
-*           return the value unchanged.
-*        O
-*           The function returns an Object pointer. astINVOKE will
-*           convert it to an Object identifier if necessary.
-*        F
-*           The function returns a function pointer. astINVOKE will
-*           return it unchanged. This is typically used when the
-*           function has a variable argument list. In this case the
-*           function name is passed to astINVOKE without its argument
-*           list and a pointer to the function is returned which can
-*           then be supplied with an argument list. This avoids the
-*           need to define a macro with a variable number of arguments
-*           (which isn't allowed).
-*     function
-*        A normal invocation of the function returning the required
-*        result.  In the case of a variable argument list, the
-*        argument list should be omitted so that the function is not
-*        invoked but a function pointer is returned that may then be
-*        used to invoke it.
-
-*  Examples:
-*     #define astGetNobject(this) \
-*             astINVOKE(V,astGetNobject_(astCheckObject(this)))
-*        Defines a macro to invoke the astGetNobject_ function which
-*        returns an int.
-*     #define astClone(this) \
-*             astINVOKE(O,astClone_(astCheckObject(this)))
-*        Defines a macro to invoke the astClone_ function which
-*        returns an Object pointer.
-*     #define astSet astINVOKE(F,astSet_)
-*        Defines a macro to invoke the astSet_ function which has a
-*        variable argument list and returns void. The macro result is
-*        a pointer to the astSet_ function. This function must perform
-*        its own argument validation, as (e.g) astCheckObject cannot
-*        be invoked on its arguments via a macro.
-
-*  Notes:
-*     - To avoid problems with some compilers, you should not leave
-*     any white space around the macro arguments.
-*-
-*/
-
-/* Define astINVOKE, which records the current file and line number
-   (in case of error) using astAt, and then invokes the function
-   supplied as an argument of the astRetV_, astRetO_ or astRetF_
-   macro.
-
-   Suppress reporting of the file and line number from internal code
-   and from foreign language interfaces by not using astAt in these
-   cases. */
-#if defined(astCLASS) || defined(astFORTRAN77)
-#define astINVOKE(rettype,function) astRet##rettype##_(function)
-#else
-#define astINVOKE(rettype,function) \
-astERROR_INVOKE(astRet##rettype##_(function))
-#endif
-
-/* astRetF_ and astRetV_ currently do nothing. */
-#define astRetF_(x) (x)
-#define astRetV_(x) (x)
-
-/* However, astRetO_ converts a pointer to an ID if necessary. */
-#if defined(astCLASS)
-#define astRetO_(x) ((void *)(x))
-#else
-#define astRetO_(x) ((void *)astMakeId_((AstObject *)(x),STATUS_PTR))
-#endif
-
-/*
-*+
-*  Name:
-*     astINVOKE_CHECK
-*     astINVOKE_ISA
-
-*  Type:
-*     Protected macros.
-
-*  Purpose:
-*     Invoke the astCheck<Class>_ and astIsA<Class>_ functions.
-
-*  Synopsis:
-*     #include "object.h"
-*     astINVOKE_CHECK(class,this,force)
-*     astINVOKE_ISA(class,this)
-
-*  Class Membership:
-*     Defined by the Object class.
-
-*  Description:
-*     These macros expand to invocations of the standard
-*     astCheck<Class>_ and astIsA<Class>_ functions for a class.
-
-*  Parameters:
-*     class
-*        The name (not the type) of the class for which the function
-*        is to be invoked.
-*     this
-*        The "this" argument (the Object pointer) to be passed to the
-*        function.
-*     force
-*        Type checking takes time, and so can be disabled within the
-*        protected context in order to save time. Setting "force" to
-*        zero causes the astINVOKE_CHECK macro to skip the class check
-*        in a protected context (it assumes that AST "knows what it is
-*        doing"). Setting "force" to a non-zero value forces the class
-*        check even in a protected context.
-
-*  Notes:
-*     - To avoid problems with some compilers, you should not leave
-*     any white space around the macro arguments.
-*-
-*/
-
-/* For the public interface (and also internally if AST_CHECK_CLASS is
-   defined), define astINVOKE_CHECK to invoke the astCheck<Class>
-   function. */
-#if !defined(astCLASS) || defined(AST_CHECK_CLASS)
-#define astINVOKE_CHECK(class,this,force) \
-astCheck##class##_((Ast##class *)astEnsurePointer_(this),astGetStatusPtr)
-
-/* For the internal interface, astINVOKE_CHECK omits the
-   astCheck<class> function (unless AST_CHECK_CLASS is defined). */
-#else
-
-#define astINVOKE_CHECK(class,this,force) ( (force) ? \
-   ( astCheck##class##_((Ast##class *)astEnsurePointer_(this),astGetStatusPtr) ) : \
-   ( (Ast##class *) astEnsurePointer_(this) ) )
-
-#endif
-
-/* Define astINVOKE_ISA to invoke the astIsA<Class> function. */
-#if defined(astCLASS)            /* Protected */
-#define astINVOKE_ISA(class,this) \
-astIsA##class##_((const Ast##class *)(this),status)
-#else                            /* Public */
-#define astINVOKE_ISA(class,this) \
-astINVOKE(V,astIsA##class##_((const Ast##class *)astEnsurePointer_(this),astGetStatusPtr))
-#endif
-
-/* The astEnsurePointer_ macro ensures a true C pointer, converting
-   from an ID if necessary. */
-#if defined(astCLASS)            /* Protected */
-#define astEnsurePointer_(x) ((void *)(x))
-#else                            /* Public */
-#define astEnsurePointer_(x) ((void *)astCheckLock_(astMakePointer_((AstObject *)(x),STATUS_PTR),STATUS_PTR))
-#endif
-
-#if defined(astCLASS)            /* Protected */
-/*
-*+
-*  Name:
-*     astMAKE_CHECK
-
-*  Type:
-*     Protected macro.
-
-*  Purpose:
-*     Implement the astCheck<Class>_ function for a class.
-
-*  Synopsis:
-*     #include "object.h"
-*     astMAKE_CHECK(class)
-
-*  Class Membership:
-*     Defined by the Object class.
-
-*  Description:
-*     This macro expands to an implementation of the public astCheck<Class>_
-*     function (q.v.) which validates membership of a specified class.
-
-*  Parameters:
-*     class
-*        The name (not the type) of the class whose membership is to be
-*        validated.
-
-*  Notes:
-*     -  This macro is provided so that class definitions can easiy
-*     implement the astCheck<Class>_ function, which is essentially the same
-*     for each class apart for a change of name.
-*     -  To avoid problems with some compilers, you should not leave any white
-*     space around the macro arguments.
-*-
-*/
-
-#ifndef MEM_DEBUG
-
-/* Define the macro. */
-#define astMAKE_CHECK(class) \
-\
-/* Declare the function (see the object.c file for a prologue). */ \
-Ast##class *astCheck##class##_( Ast##class *this, int *status ) { \
-\
-/* Check the inherited error status. */ \
-   if ( !astOK ) return this; \
-\
-/* Check if the object is a class member. */ \
-   if ( !astIsA##class( this ) ) { \
-\
-/* If not, but the pointer was valid (which means it identifies an Object \
-   of some sort), then report more information about why this Object is \
-   unsuitable. */ \
-      if ( astOK ) { \
-         astError( AST__OBJIN, "Pointer to " #class " required, but pointer " \
-                   "to %s given.", status, astGetClass( this ) ); \
-      } \
-   } \
-\
-/* Return the pointer value supplied. */ \
-   return this; \
-}
-
-/* Define the macro with memory debugging facilities. */
-#else
-
-#define astMAKE_CHECK(class) \
-\
-/* Declare the function (see the object.c file for a prologue). */ \
-Ast##class *astCheck##class##_( Ast##class *this, int *status ) { \
-\
-   char buf[100]; \
-\
-/* Check the inherited error status. */ \
-   if ( !astOK ) return this; \
-\
-/* Check if the object is a class member. */ \
-   if ( !astIsA##class( this ) ) { \
-\
-/* If not, but the pointer was valid (which means it identifies an Object \
-   of some sort), then report more information about why this Object is \
-   unsuitable. */ \
-      if ( astOK ) { \
-         astError( AST__OBJIN, "Pointer to " #class " required, but pointer " \
-                   "to %s given.", status, astGetClass( this ) ); \
-      }\
-\
-   } else { \
-\
-/* Call the astMemoryUse function to report it if the memory block is \
-   being watched. */ \
-      sprintf( buf, "checked (refcnt: %d)", astGetRefCount_( (AstObject *) this, status ) ); \
-      astMemoryUse( this, buf ); \
-   } \
-\
-/* Return the pointer value supplied. */ \
-   return this; \
-}
-#endif
-#endif
-
-#if defined(astCLASS)            /* Protected */
-/*
-*+
-*  Name:
-*     astMAKE_CLEAR
-
-*  Purpose:
-*     Implement a method to clear an attribute value for a class.
-
-*  Type:
-*     Protected macro.
-
-*  Synopsis:
-*     #include "object.h"
-*     astMAKE_CLEAR(class,attribute,component,assign)
-
-*  Class Membership:
-*     Defined by the Object class.
-
-*  Description:
-*     This macro expands to an implementation of a private member function of
-*     the form:
-*
-*        static void Clear<Attribute>( Ast<Class> *this )
-*
-*     and an external interface function of the form:
-*
-*        void astClear<Attribute>_( Ast<Class> *this )
-*
-*     which implement a method for clearing a specified attribute value for
-*     a class.
-
-*  Parameters:
-*     class
-*        The name (not the type) of the class to which the attribute belongs.
-*     attribute
-*        The name of the attribute to be cleared, as it appears in the function
-*        name (e.g. Label in "astClearLabel").
-*     component
-*        The name of the class structure component that holds the attribute
-*        value.
-*     assign
-*        An expression that evaluates to the value to assign to the component
-*        to clear its value.
-
-*  Examples:
-*     astMAKE_CLEAR(MyStuff,Flag,flag,-1)
-*        Implements the astClearFlag method for the MyStuff class which
-*        operates by setting the "flag" structure component to -1 to indicate
-*        that it has no value.
-
-*  Notes:
-*     -  To avoid problems with some compilers, you should not leave any white
-*     space around the macro arguments.
-*-
-*/
-
-/* Define the macro. */
-#define astMAKE_CLEAR(class,attribute,component,assign) \
-\
-/* Private member function. */ \
-/* ------------------------ */ \
-static void Clear##attribute( Ast##class *this, int *status ) { \
-\
-/* Check the inherited error status. */ \
-   if ( !astOK ) return; \
-\
-/* Assign the "clear" value. */ \
-   this->component = (assign); \
-} \
-\
-/* External interface. */ \
-/* ------------------- */ \
-void astClear##attribute##_( Ast##class *this, int *status ) { \
-\
-/* Check the inherited error status. */ \
-   if ( !astOK ) return; \
-\
-/* Invoke the required method via the virtual function table. */ \
-   (**astMEMBER(this,class,Clear##attribute))( this, status ); \
-}
-#endif
-
-#if defined(astCLASS)            /* Protected */
-/*
-*+
-*  Name:
-*     astMAKE_CLEAR1
-
-*  Purpose:
-*     Implement a method to clear an attribute value for a class, reporting
-*     an error if the object has more than one reference.
-
-*  Type:
-*     Protected macro.
-
-*  Synopsis:
-*     #include "object.h"
-*     astMAKE_CLEAR1(class,attribute,component,assign)
-
-*  Class Membership:
-*     Defined by the Object class.
-
-*  Description:
-*     This macro expands to an implementation of a private member function of
-*     the form:
-*
-*        static void Clear<Attribute>( Ast<Class> *this )
-*
-*     and an external interface function of the form:
-*
-*        void astClear<Attribute>_( Ast<Class> *this )
-*
-*     which implement a method for clearing a specified attribute value for
-*     a class. An error is reported if the object has a reference count that
-*     is greater than one.
-
-*  Parameters:
-*     class
-*        The name (not the type) of the class to which the attribute belongs.
-*     attribute
-*        The name of the attribute to be cleared, as it appears in the function
-*        name (e.g. Label in "astClearLabel").
-*     component
-*        The name of the class structure component that holds the attribute
-*        value.
-*     assign
-*        An expression that evaluates to the value to assign to the component
-*        to clear its value.
-
-*  Notes:
-*     -  To avoid problems with some compilers, you should not leave any white
-*     space around the macro arguments.
-*-
-*/
-
-/* Define the macro. */
-#define astMAKE_CLEAR1(class,attribute,component,assign) \
-\
-/* Private member function. */ \
-/* ------------------------ */ \
-static void Clear##attribute( Ast##class *this, int *status ) { \
-\
-/* Check the inherited error status. */ \
-   if ( !astOK ) return; \
-\
-/* Report an error if the object has been cloned (i.e. has a reference \
-   count that is greater than one). */ \
-   if( astGetRefCount( this ) > 1 ) { \
-      astError( AST__IMMUT, "astClear(%s): The " #attribute "attribute of " \
-                "the supplied %s cannot be cleared because the %s has " \
-                "been cloned (programming error).", status, \
-                astGetClass(this), astGetClass(this), astGetClass(this) ); \
-\
-/* Otherwise, assign the "clear" value in the structure component. */ \
-   } else { \
-      this->component = (assign); \
-   } \
-} \
-\
-/* External interface. */ \
-/* ------------------- */ \
-void astClear##attribute##_( Ast##class *this, int *status ) { \
-\
-/* Check the inherited error status. */ \
-   if ( !astOK ) return; \
-\
-/* Invoke the required method via the virtual function table. */ \
-   (**astMEMBER(this,class,Clear##attribute))( this, status ); \
-}
-#endif
-
-#if defined(astCLASS)            /* Protected */
-/*
-*+
-*  Name:
-*     astMAKE_GET
-
-*  Purpose:
-*     Implement a method to get an attribute value for a class.
-
-*  Type:
-*     Protected macro.
-
-*  Synopsis:
-*     #include "object.h"
-*     astMAKE_GET(class,attribute,type,bad_value,assign)
-
-*  Class Membership:
-*     Defined by the Object class.
-
-*  Description:
-*     This macro expands to an implementation of a private member function of
-*     the form:
-*
-*        static <Type> Get<Attribute>( Ast<Class> *this )
-*
-*     and an external interface function of the form:
-*
-*        <Type> astGet<Attribute>_( Ast<Class> *this )
-*
-*     which implement a method for getting a specified attribute value for a
-*     class.
-
-*  Parameters:
-*     class
-*        The name (not the type) of the class to which the attribute belongs.
-*     attribute
-*        The name of the attribute whose value is to be obtained, as it
-*        appears in the function name (e.g. Label in "astGetLabel").
-*     type
-*        The C type of the attribute.
-*     bad_value
-*        A constant value to return if the inherited error status is set, or if
-*        the function fails.
-*     assign
-*        An expression that evaluates to the value to be returned.
-
-*  Examples:
-*     astMAKE_GET(MyStuff,Flag,int,0,( this->flag == 1 ))
-*        Implements the astGetFlag method for the MyStuff class which operates
-*        by examining the integer "flag" structure component and comparing it
-*        with the value 1 to see if it is set. A value of 0 is returned if the
-*        method fails to complete successfully.
-
-*  Notes:
-*     -  To avoid problems with some compilers, you should not leave any white
-*     space around the macro arguments.
-*-
-*/
-
-/* Define the macro. */
-#define astMAKE_GET(class,attribute,type,bad_value,assign) \
-\
-/* Private member function. */ \
-/* ------------------------ */ \
-static type Get##attribute( Ast##class *this, int *status ) { \
-   type result;                  /* Result to be returned */ \
-\
-/* Check the inherited error status. */ \
-   if ( !astOK ) return (bad_value); \
-\
-/* Assign the result value. */ \
-   result = (assign); \
-\
-/* Check for errors and clear the result if necessary. */ \
-   if ( !astOK ) result = (bad_value); \
-\
-/* Return the result. */ \
-   return result; \
-} \
-/* External interface. */ \
-/* ------------------- */  \
-type astGet##attribute##_( Ast##class *this, int *status ) { \
-\
-/* Check the inherited error status. */ \
-   if ( !astOK ) return (bad_value); \
-\
-/* Invoke the required method via the virtual function table. */ \
-   return (**astMEMBER(this,class,Get##attribute))( this, status ); \
-}
-#endif
-
-#if defined(astCLASS)            /* Protected */
-/*
-*+
-*  Name:
-*     astMAKE_ISA
-
-*  Type:
-*     Protected macro.
-
-*  Purpose:
-*     Implement the astIsA<Class>_ function for a class.
-
-*  Synopsis:
-*     #include "object.h"
-*     astMAKE_ISA(class,parent)
-
-*  Class Membership:
-*     Defined by the Object class.
-
-*  Description:
-*     This macro expands to an implementation of the public
-*     astIsA<Class>_ function (q.v.) which checks membership of a
-*     specified class.
-
-*  Parameters:
-*     class
-*        The name (not the type) of the class whose membership is to be
-*        tested.
-*     parent
-*        The name of the parent class.
-
-*  Notes:
-*     - This macro is provided so that class definitions can easiy
-*     implement the astIsA<Class>_ function, which is essentially the
-*     same for each class apart for a change of name.
-*     - To avoid problems with some compilers, you should not leave
-*     any white space around the macro arguments.
-*-
-*/
-
-/* Define the macro. */
-#define astMAKE_ISA(class,parent) \
-\
-/* Declare the function (see the object.c file for a prologue). */ \
-int astIsA##class##_( const Ast##class *this, int *status ) { \
-\
-/* Local Variables: */ \
-   int isa = 0;                  /* Is object a member? */ \
-\
-/* To test if the object is correctly constructed, we first test if it is a \
-   member of the parent class. This improves the security of the test by \
-   checking the object structure from the base Object class downwards \
-   (without this, the "magic numbers" that identify classes might be \
-   encountered by accident or we might address parts of the Object which \
-   don't exist). */ \
-   if ( astIsA##parent( this ) ) { \
-\
-/* Obtain the Object's size and check it is adequate for an object of the \
-   proposed type (this avoids any attempt to access derived class data that \
-   doesn't exist and therefore lies outside the memory allocated for the \
-   object). */ \
-      if ( ( (AstObject *) this )->size >= sizeof( Ast##class ) ) { \
-\
-/* If OK, see whether the check component in the object's virtual function \
-   table matches the expected "magic" value. */ \
-         isa = ( *astMEMBER(this,class,id.check) == &class_check ); \
-      } \
-   } \
-\
-/* Return the result. */ \
-   return isa; \
-}
-#endif
-
-#if defined(astCLASS)            /* Protected */
-/*
-*+
-*  Name:
-*     astMAKE_SET
-
-*  Purpose:
-*     Implement a method to set an attribute value for a class.
-
-*  Type:
-*     Protected macro.
-
-*  Synopsis:
-*     #include "object.h"
-*     astMAKE_SET(class,attribute,type,component,assign)
-
-*  Class Membership:
-*     Defined by the Object class.
-
-*  Description:
-*     This macro expands to an implementation of a private member function of
-*     the form:
-*
-*        static void Set<Attribute>( Ast<Class> *this, <Type> value )
-*
-*     and an external interface function of the form:
-*
-*        void astSet<Attribute>_( Ast<Class> *this, <Type> value )
-*
-*     which implement a method for setting a specified attribute value for a
-*     class.
-
-*  Parameters:
-*      class
-*         The name (not the type) of the class to which the attribute belongs.
-*      attribute
-*         The name of the attribute to be set, as it appears in the function
-*         name (e.g. Label in "astSetLabel").
-*      type
-*         The C type of the attribute.
-*      component
-*         The name of the class structure component that holds the attribute
-*         value.
-*      assign
-*         An expression that evaluates to the value to be assigned to the
-*         component.
-
-*  Examples:
-*     astMAKE_SET(MyStuff,Flag,int,flag,( value != 0 ))
-*        Implements the astSetFlag method for the MyStuff class which operates
-*        by setting the "flag" structure component to 0 or 1 depending on
-*        whether the "value" parameter is non-zero or not.
-
-*  Notes:
-*     - To avoid problems with some compilers, you should not leave
-*     any white space around the macro arguments.
-*-
-*/
-
-/* Define the macro. */
-#define astMAKE_SET(class,attribute,type,component,assign) \
-\
-/* Private member function. */ \
-/* ------------------------ */ \
-static void Set##attribute( Ast##class *this, type value, int *status ) { \
-\
-/* Check the inherited error status. */ \
-   if ( !astOK ) return; \
-\
-/* Store the new value in the structure component. */ \
-   this->component = (assign); \
-} \
-\
-/* External interface. */ \
-/* ------------------- */ \
-void astSet##attribute##_( Ast##class *this, type value, int *status ) { \
-\
-/* Check the inherited error status. */ \
-   if ( !astOK ) return; \
-\
-/* Invoke the required method via the virtual function table. */ \
-   (**astMEMBER(this,class,Set##attribute))( this, value, status ); \
-}
-#endif
-
-#if defined(astCLASS)            /* Protected */
-/*
-*+
-*  Name:
-*     astMAKE_SET1
-
-*  Purpose:
-*     Implement a method to set an attribute value for a class, reporting
-*     an error if the object has more than one reference.
-
-*  Type:
-*     Protected macro.
-
-*  Synopsis:
-*     #include "object.h"
-*     astMAKE_SET1(class,attribute,type,component,assign)
-
-*  Class Membership:
-*     Defined by the Object class.
-
-*  Description:
-*     This macro expands to an implementation of a private member function of
-*     the form:
-*
-*        static void Set<Attribute>( Ast<Class> *this, <Type> value )
-*
-*     and an external interface function of the form:
-*
-*        void astSet<Attribute>_( Ast<Class> *this, <Type> value )
-*
-*     which implement a method for setting a specified attribute value for a
-*     class. An error is reported if the object has a reference count that
-*     is greater than one.
-
-*  Parameters:
-*      class
-*         The name (not the type) of the class to which the attribute belongs.
-*      attribute
-*         The name of the attribute to be set, as it appears in the function
-*         name (e.g. Label in "astSetLabel").
-*      type
-*         The C type of the attribute.
-*      component
-*         The name of the class structure component that holds the attribute
-*         value.
-*      assign
-*         An expression that evaluates to the value to be assigned to the
-*         component.
-
-*-
-*/
-
-/* Define the macro. */
-#define astMAKE_SET1(class,attribute,type,component,assign) \
-\
-/* Private member function. */ \
-/* ------------------------ */ \
-static void Set##attribute( Ast##class *this, type value, int *status ) { \
-\
-/* Check the inherited error status. */ \
-   if ( !astOK ) return; \
-\
-/* Report an error if the object has been cloned (i.e. has a reference \
-   count that is greater than one). */ \
-   if( astGetRefCount( this ) > 1 ) { \
-      astError( AST__IMMUT, "astSet(%s): The " #attribute "attribute of " \
-                "the supplied %s cannot be changed because the %s has " \
-                "been cloned (programming error).", status, \
-                astGetClass(this), astGetClass(this), astGetClass(this) ); \
-\
-/* Otherwise, store the new value in the structure component. */ \
-   } else { \
-      this->component = (assign); \
-   } \
-} \
-\
-/* External interface. */ \
-/* ------------------- */ \
-void astSet##attribute##_( Ast##class *this, type value, int *status ) { \
-\
-/* Check the inherited error status. */ \
-   if ( !astOK ) return; \
-\
-/* Invoke the required method via the virtual function table. */ \
-   (**astMEMBER(this,class,Set##attribute))( this, value, status ); \
-}
-#endif
-
-#if defined(astCLASS)            /* Protected */
-/*
-*+
-*  Name:
-*     astMAKE_TEST
-
-*  Purpose:
-*     Implement a method to test if an attribute has been set for a class.
-
-*  Type:
-*     Protected macro.
-
-*  Synopsis:
-*     #include "object.h"
-*     astMAKE_TEST(class,attribute,assign)
-
-*  Class Membership:
-*     Defined by the Object class.
-
-*  Description:
-*     This macro expands to an implementation of a private member function of
-*     the form:
-*
-*        static int Test<Attribute>( Ast<Class> *this )
-*
-*     and an external interface function of the form:
-*
-*        int astTest<Attribute>_( Ast<Class> *this )
-*
-*     which implement a method for testing if a specified attribute has been
-*     set for a class.
-
-*  Parameters:
-*      class
-*         The name (not the type) of the class to which the attribute belongs.
-*      attribute
-*         The name of the attribute to be tested, as it appears in the function
-*         name (e.g. Label in "astTestLabel").
-*      assign
-*         An expression that evaluates to 0 or 1, to be used as the returned
-*         value.
-
-*  Examples:
-*     astMAKE_TEST(MyStuff,Flag,( this->flag != -1 ))
-*        Implements the astTestFlag method for the MyStuff class which operates
-*        by testing the "flag" structure component to see if it is set to a
-*        value other than -1.
-
-*  Notes:
-*     -  To avoid problems with some compilers, you should not leave any white
-*     space around the macro arguments.
-*-
-*/
-
-/* Define the macro. */
-#define astMAKE_TEST(class,attribute,assign) \
-\
-/* Private member function. */ \
-/* ------------------------ */ \
-static int Test##attribute( Ast##class *this, int *status ) { \
-   int result;                   /* Value to return */ \
-\
-/* Check the inherited error status. */ \
-   if ( !astOK ) return 0; \
-\
-/* Assign the result value. */ \
-   result = (assign); \
-\
-/* Check for errors and clear the result if necessary. */ \
-   if ( !astOK ) result = 0; \
-\
-/* Return the result. */ \
-   return result; \
-} \
-/* External interface. */ \
-/* ------------------- */ \
-int astTest##attribute##_( Ast##class *this, int *status ) { \
-\
-/* Check the inherited error status. */ \
-   if ( !astOK ) return 0; \
-\
-/* Invoke the required method via the virtual function table. */ \
-   return (**astMEMBER(this,class,Test##attribute))( this, status ); \
-}
-#endif
-
-#if defined(astCLASS)            /* Protected */
-/*
-*+
-*  Name:
-*     astMEMBER
-
-*  Purpose:
-*     Locate a member function.
-
-*  Type:
-*     Protected macro.
-
-*  Synopsis:
-*     #include "object.h"
-*     astMEMBER(this,class,method)
-
-*  Class Membership:
-*     Defined by the Object class.
-
-*  Description:
-*     This macro evaluates to the address where the pointer to a
-*     specified Object member function is stored. Typically, this will
-*     be used to obtain a pointer to the member function so that it
-*     can be invoked. It may also be used to assign a new function
-*     pointer so that a derived class can re-define a virtual function
-*     and hence over-ride an inherited method.
-
-*  Parameters:
-*     this
-*        Pointer to an Object belonging to the class for which the
-*        virtual function is required. This must either be the class
-*        that originally defined the method, or one derived from it.
-*     class
-*        Name of the class that originally defined the method. This
-*        may differ from (i.e. be an ancestor of) the class to which
-*        "this" belongs.
-*     method
-*        Name of the method whose member function is to be located.
-
-*  Returned Value:
-*     The address where the member function pointer is stored (the
-*     type of the result is determined by the type of the member
-*     function itself).
-
-*  Examples:
-*     astMEMBER(this,Gnome,astFish)
-*        Returns the address where the pointer to the function that
-*        implements the astFish method for the "this" object is
-*        stored. The Gnome class should be where the astFish method
-*        was first defined (i.e. from where it was inherited by
-*        "this").
-*     (**astMEMBER(this,Gnome,astFish))( this, arg1, arg2 );
-*        Invokes the virtual function that implements the astFish
-*        method for object "this" and passes it additional arguments
-*        "arg2" and "arg2".  Again, Gnome should be the class that
-*        originally defined the astFish method.
-*     *astMEMBER(this,Gnome,astFish) = myFish;
-*        Stores a pointer to the myFish function so that it replaces
-*        the virtual function that previously implemented the astFish
-*        method for the "this" object. Note that all objects in the
-*        same class as "this" are affected, but objects in class
-*        "class" are not affected (unless it happens to be the class
-*        to which "this" belongs).
-
-*  Notes:
-*     - To avoid problems with some compilers, you should not leave
-*     any white space around the macro arguments.
-*-
-*/
-
-/* A subsiduary macro that returns a pointer to the vtab of an object,
-   cast to an AstObjectVtab. */
-#define astVTAB(this) (((AstObject*)(this))->vtab)
-
-/* Define the macro. This functions by (a) casting the Object pointer
-   to type (AstObject *) and locating the Object's virtual function
-   table (b) casting the table pointer to the correct type
-   (AstClassVtab *) for the class in which the method pointer resides,
-   (c) locating the component holding the member function pointer, and
-   (d) taking its address. */
-#define astMEMBER(this,class,method) \
-(&((Ast##class##Vtab*)astVTAB(this))->method)
-
-#endif
-
-/*
-*+
-*  Name:
-*     astPROTO_CHECK
-*     astPROTO_ISA
-
-*  Type:
-*     Protected macros.
-
-*  Purpose:
-*     Prototype the astCheck<Class>_ and astIsA<Class>_ functions.
-
-*  Synopsis:
-*     #include "object.h"
-*     astPROTO_CHECK(class)
-*     astPROTO_ISA(class)
-
-*  Class Membership:
-*     Defined by the Object class.
-
-*  Description:
-*     These macros expands to function prototypes for the
-*     astCheck<Class>_ and astIsA<Class>_ functions (q.v.) which
-*     validate and test for membership of a specified class.
-
-*  Parameters:
-*     class
-*        The name (not the type) of the class whose membership is to
-*        be validated.
-
-*  Notes:
-*     - To avoid problems with some compilers, you should not leave
-*     any white space around the macro arguments.
-*-
-*/
-
-/* Define the macros. */
-#define astPROTO_CHECK(class) Ast##class *astCheck##class##_( Ast##class *, int * );
-#define astPROTO_ISA(class) int astIsA##class##_( const Ast##class *, int * );
-
-/* Macros which return the maximum and minimum of two values. */
-#define astMAX(aa,bb) ((aa)>(bb)?(aa):(bb))
-#define astMIN(aa,bb) ((aa)<(bb)?(aa):(bb))
-
-/* Check for equality of floating point values. We cannot compare bad values
-   directly because of the danger of floating point exceptions, so bad
-   values are dealt with explicitly. */
-#define astEQUALS(aa,bb,tol) (((aa)==AST__BAD)?(((bb)==AST__BAD)?1:0):(((bb)==AST__BAD)?0:(fabs((aa)-(bb))<=(tol)*astMAX((fabs(aa)+fabs(bb))*DBL_EPSILON,DBL_MIN))))
-#define astEQUAL(aa,bb) astEQUALS(aa,bb,1.0E5)
-
-
-/* AST__NULL. */
-/* ---------- */
-/* Define the AST__NULL macro, which evaluates to a null Object
-   pointer. */
-#define AST__NULL (astI2P(0))
-
-
-#if defined(astCLASS)            /* Protected */
-
-/* Test the validy of an attribute value  */
-/* -------------------------------------  */
-/* If the set attribute value is invalid, clear it. These macros should
-   be used in a context in which error reporting has been deferred by
-   calling astReporting( 0 ). */
-
-#define astCLEAN_ATTRIB(attr) \
-   if( astTest##attr(this) ) { \
-      astSet##attr( this, astGet##attr( this ) ); \
-      if( !astOK ) { \
-         astClearStatus; \
-         astClear##attr( this ); \
-      } \
-   }
-
-#define astCLEAN_INDEXED_ATTRIB(attr,index) \
-   if( astTest##attr(this,index) ) { \
-      astSet##attr( this, index, astGet##attr( this, index ) ); \
-      if( !astOK ) { \
-         astClearStatus; \
-         astClear##attr( this, index ); \
-      } \
-   }
-
-#endif
-
-
-#if defined(astCLASS)            /* Protected */
-#define astSetVtabClassIdentifier(vtab,id_ptr) \
-   ((AstObjectVtab *)(vtab))->top_id = (id_ptr)
-#endif
-
-/* Type Definitions. */
-/* ================= */
-
-/* Object structure. */
-/* ----------------- */
-/* This structure contains all information that is unique to each object in
-   the class (e.g. its instance variables). */
-typedef struct AstObject {
-
-/* Attributes specific to objects in this class. */
-   unsigned long check;          /* Check value to identify Objects */
-   size_t size;                  /* Amount of memory used by Object */
-   struct AstObjectVtab *vtab;   /* Pointer to virtual function table */
-   char dynamic;                 /* Memory allocated dynamically? */
-   int ref_count;                /* Number of active pointers to the Object */
-   char *id;                     /* Pointer to ID string */
-   char *ident;                  /* Pointer to Ident string */
-   char usedefs;                 /* Use default attribute values? */
-   int iref;                     /* Object index (unique within class) */
-   void *proxy;                  /* A pointer to an external object that
-                                    acts as a foreign language proxy for the
-                                    AST object */
-#if defined(THREAD_SAFE)
-   int locker;                   /* Thread that has locked this Object */
-   pthread_mutex_t mutex1;       /* Guards access to all elements of the
-                                    Object except for the "locker" and
-                                    "ref_count" components */
-   pthread_mutex_t mutex2;       /* Guards access to the "locker" and
-                                    "ref_count" components */
-   struct AstGlobals *globals;   /* Pointer to thread-specific global data */
-#endif
-
-} AstObject;
-
-/* Class identifier structure */
-typedef struct AstClassIdentifier {
-   int *check;
-   struct AstClassIdentifier *parent;
-} AstClassIdentifier;
-
-/* Virtual function table. */
-/* ----------------------- */
-/* The virtual function table makes a forward reference to the
-   AstChannel structure which is not defined until "channel.h" is
-   included (below). Hence make a preliminary definition available
-   now. */
-struct AstChannel;
-struct KeyMap;
-
-/* 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 AstObjectVtab {
-
-/* A unique identifier for this class. */
-   AstClassIdentifier id;
-
-/* Pointer to the structure that identifies the top-level class described
-   by the whole vtab (of which the AstObjectVtab is just the first,
-   lowest-level, component). */
-   AstClassIdentifier *top_id;
-
-/* Pointer to a dynamically allocated string holding the default
-   attribute values to use when creating new objects. These are read from
-   environment variables of the form "<CLASSNAME>_OPTIONS". */
-   const char *defaults;
-
-/* Properties specific to this class. */
-   void ( *CleanAttribs )( AstObject *, int * );
-   AstObject *( *Cast )( AstObject *, AstObject *, int * );
-   const char *( *GetID )( AstObject *, int * );
-   const char *( *GetIdent )( AstObject *, int * );
-   const char *(* GetAttrib)( AstObject *, const char *, int * );
-   int (* TestAttrib)( AstObject *, const char *, int * );
-   int (* TestID)( AstObject *, int * );
-   int (* Same)( AstObject *, AstObject *, int * );
-   int (* HasAttribute)( AstObject *, const char *, int * );
-   int (* TestIdent)( AstObject *, int * );
-   void (* Clear)( AstObject *, const char *, int * );
-   void (* ClearAttrib)( AstObject *, const char *, int * );
-   void (* ClearID)( AstObject *, int * );
-   void (* ClearIdent)( AstObject *, int * );
-   void (* Dump)( AstObject *, struct AstChannel *, int * );
-   int (* Equal)( AstObject *, AstObject *, int * );
-   void (* SetAttrib)( AstObject *, const char *, int * );
-   void (* SetID)( AstObject *, const char *, int * );
-   void (* SetIdent)( AstObject *, const char *, int * );
-   void (* Show)( AstObject *, int * );
-   void (* VSet)( AstObject *, const char *, char **, va_list, int * );
-   void (* EnvSet)( AstObject *, int * );
-
-   void *(* GetProxy)( AstObject *, int * );
-   void (* SetProxy)( AstObject *, void *, int * );
-
-   int (* GetObjSize)( AstObject *, int * );
-
-   int (* TestUseDefs)( AstObject *, int * );
-   int (* GetUseDefs)( AstObject *, int * );
-   void (* SetUseDefs)( AstObject *, int, int * );
-   void (* ClearUseDefs)( AstObject *, int * );
-
-   const char *class;            /* Pointer to class name string */
-   void (** delete)( AstObject *, int * ); /* Pointer to array of destructors */
-   void (** copy)( const AstObject *, AstObject *, int * ); /* Copy constructors */
-   void (** dump)( AstObject *, struct AstChannel *, int * ); /* Dump functions */
-   const char **dump_class;      /* Dump function class string pointers */
-   const char **dump_comment;    /* Dump function comment string pointers */
-   int ndelete;                  /* Number of destructors */
-   int ncopy;                    /* Number of copy constructors */
-   int ndump;                    /* Number of dump functions */
-   int nobject;                  /* Number of active objects in the class */
-   int nfree;                    /* No. of entries in "free_list" */
-   AstObject **free_list;        /* List of pointers for freed Objects */
-
-#if defined(THREAD_SAFE)
-   int (* ManageLock)( AstObject *, int, int, AstObject **, int * );
-#endif
-
-} AstObjectVtab;
-#endif
-
-#if defined(THREAD_SAFE) && defined(astCLASS)
-
-/* Define a structure holding all data items that are global within the
-   object.c file. */
-
-typedef struct AstObjectGlobals {
-   AstObjectVtab Class_Vtab;
-   int Class_Init;
-   int Retain_Esc;
-   int Context_Level;
-   int *Active_Handles;
-   char GetAttrib_Buff[ AST__GETATTRIB_BUFF_LEN + 1 ];
-   char *AstGetC_Strings[ AST__ASTGETC_MAX_STRINGS ];
-   int AstGetC_Istr;
-   int AstGetC_Init;
-   int Nvtab;
-   AstObjectVtab **Known_Vtabs;
-} AstObjectGlobals;
-
-#endif
-
-/* More include files. */
-/* =================== */
-/* The interface to the Channel class must be included here (after the
-   type definitions for the Object class) because "channel.h" itself
-   includes this file ("object.h"), although "object.h" refers to the
-   AstChannel structure above. This seems a little strange at first,
-   but is simply analogous to making a forward reference to a
-   structure type when recursively defining a normal C structure
-   (except that here the definitions happen to be in separate include
-   files). */
-#include "channel.h"
-
-/* Function prototypes. */
-/* ==================== */
-/* Prototypes for standard class functions. */
-/* ---------------------------------------- */
-astPROTO_CHECK(Object)           /* Validate class membership */
-astPROTO_ISA(Object)             /* Test class membership */
-
-/* NB. There is no constructor function for this class. */
-
-#if defined(astCLASS)            /* Protected */
-
-/* Initialiser. */
-AstObject *astInitObject_( void *, size_t, int, AstObjectVtab *,
-                           const char *, int * );
-
-/* Vtab Initialiser. */
-void astInitObjectVtab_( AstObjectVtab *, const char *, int * );
-
-/* Loader. */
-AstObject *astLoadObject_( void *, size_t, AstObjectVtab *,
-                           const char *, AstChannel *channel, int * );
-
-#if defined(THREAD_SAFE)
-void astInitObjectGlobals_( AstObjectGlobals * );
-#endif
-
-#endif
-
-/* Prototypes for other class functions. */
-/* ------------------------------------- */
-#if !defined(astCLASS)           /* Public */
-void astBegin_( void );
-void astEnd_( int * );
-#endif
-
-AstObject *astI2P_( int, int * );
-AstObject *astMakeId_( AstObject *, int * );
-AstObject *astMakePointer_( AstObject *, int * );
-AstObject *astMakePointer_NoLockCheck_( AstObject *, int * );
-int astP2I_( AstObject *, int * );
-int astVersion_( int * );
-int astEscapes_( int, int * );
-int astTune_( const char *, int, int * );
-void astTuneC_( const char *, const char *, char *, int, int * );
-
-/* Prototypes for member functions. */
-/* -------------------------------- */
-#if defined(astCLASS)            /* Protected */
-AstObject *astAnnul_( AstObject *, int * );
-AstObject *astDelete_( AstObject *, int * );
-void astSet_( void *, const char *, int *, ... );
-
-#else                            /* Public */
-AstObject *astDeleteId_( AstObject *, int * );
-int astThreadId_( AstObject *, int, int * );
-void astExportId_( AstObject *, int * );
-void astImportId_( AstObject *, int * );
-void astSetId_( void *, const char *, ... )__attribute__((format(printf,2,3)));
-#endif
-
-struct AstKeyMap *astActiveObjects_( const char *, int, int, int *);
-AstObject *astAnnulId_( AstObject *, int * );
-AstObject *astCheckLock_( AstObject *, int * );
-AstObject *astClone_( AstObject *, int * );
-AstObject *astCopy_( const AstObject *, int * );
-AstObject *astFromString_( const char *, int * );
-char *astToString_( AstObject *, int * );
-const char *astGetC_( AstObject *, const char *, int * );
-double astGetD_( AstObject *, const char *, int * );
-float astGetF_( AstObject *, const char *, int * );
-int astEqual_( AstObject *, AstObject *, int * );
-int astGetI_( AstObject *, const char *, int * );
-int astHasAttribute_( AstObject *, const char *, int * );
-int astSame_( AstObject *, AstObject *, int * );
-int astTest_( AstObject *, const char *, int * );
-long astGetL_( AstObject *, const char *, int * );
-void astCreatedAtId_( AstObject *, const char **, const char **, int *, int *);
-void *astGetProxy_( AstObject *, int * );
-void astClear_( AstObject *, const char *, int * );
-void astExemptId_( AstObject *, int * );
-void astLockId_( AstObject *, int, int * );
-void astSetC_( AstObject *, const char *, const char *, int * );
-void astSetD_( AstObject *, const char *, double, int * );
-void astSetF_( AstObject *, const char *, float, int * );
-void astSetI_( AstObject *, const char *, int, int * );
-void astSetL_( AstObject *, const char *, long, int * );
-void astSetProxy_( AstObject *, void *, int * );
-void astShow_( AstObject *, int * );
-void astUnlockId_( AstObject *, int, int * );
-
-#if defined(astCLASS)            /* Protected */
-
-void astCleanAttribs_( AstObject *, int * );
-AstObject *astCast_( AstObject *, AstObject *, int * );
-AstObject *astCastCopy_( AstObject *, AstObject *, int * );
-
-#if defined(THREAD_SAFE)
-int astManageLock_( AstObject *, int, int, AstObject **, int * );
-#endif
-
-int astGetObjSize_( AstObject *, int * );
-
-int astTestUseDefs_( AstObject *, int * );
-int astGetUseDefs_( AstObject *, int * );
-void astSetUseDefs_( AstObject *, int, int * );
-void astClearUseDefs_( AstObject *, int * );
-
-const char *astGetAttrib_( AstObject *, const char *, int * );
-const char *astGetClass_( const AstObject *, int * );
-const char *astGetID_( AstObject *, int * );
-const char *astGetIdent_( AstObject *, int * );
-int astClassCompare_( AstObjectVtab *, AstObjectVtab *, int * );
-int astGetNobject_( const AstObject *, int * );
-int astGetRefCount_( AstObject *, int * );
-int astTestAttrib_( AstObject *, const char *, int * );
-int astTestID_( AstObject *, int * );
-int astTestIdent_( AstObject *, int * );
-void astClearAttrib_( AstObject *, const char *, int * );
-void astClearID_( AstObject *, int * );
-void astClearIdent_( AstObject *, int * );
-void astDump_( AstObject *, AstChannel *, int * );
-void astSetAttrib_( AstObject *, const char *, int * );
-void astSetCopy_( AstObjectVtab *, void (*)( const AstObject *, AstObject *, int * ), int * );
-void astSetDelete_( AstObjectVtab *, void (*)( AstObject *, int * ), int * );
-void astSetDump_( AstObjectVtab *, void (*)( AstObject *, AstChannel *, int * ), const char *, const char *, int * );
-void astSetVtab_( AstObject *, AstObjectVtab *, int * );
-void astSetID_( AstObject *, const char *, int * );
-void astSetIdent_( AstObject *, const char *, int * );
-void astEnvSet_( AstObject *, int * );
-void astVSet_( AstObject *, const char *, char **, va_list, 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. */
-/* --------------------------------------- */
-/* Check class membership. */
-#define astCheckObject(this) astINVOKE_CHECK(Object,this,0)
-#define astVerifyObject(this) astINVOKE_CHECK(Object,this,1)
-
-/* Test class membership. */
-#define astIsAObject(this) astINVOKE_ISA(Object,this)
-
-/* NB. There is no constructor function for this class. */
-
-#if defined(astCLASS)            /* Protected */
-
-/* Initialiser. */
-#define astInitObject(mem,size,init,vtab,name) \
-astINVOKE(O,astInitObject_(mem,size,init,vtab,name,STATUS_PTR))
-
-/* Vtab Initialiser. */
-#define astInitObjectVtab(vtab,name) astINVOKE(V,astInitObjectVtab_(vtab,name,STATUS_PTR))
-
-/* Loader. */
-#define astLoadObject(mem,size,vtab,name,channel) \
-astINVOKE(O,astLoadObject_(mem,size,vtab,name,astCheckChannel(channel),STATUS_PTR))
-#endif
-
-/* Interfaces to other class functions. */
-/* ------------------------------------ */
-#if !defined(astCLASS)           /* Public */
-#define astBegin astBegin_()
-#define astEnd astINVOKE(V,astEnd_(STATUS_PTR))
-#else                            /* Protected */
-#define astMakePointer_NoLockCheck(id) ((void *)astMakePointer_NoLockCheck_((AstObject *)(id),STATUS_PTR))
-#endif
-
-#define astVersion astVersion_(STATUS_PTR)
-#define astEscapes(int) astEscapes_(int,STATUS_PTR)
-#define astTune(name,val) astTune_(name,val,STATUS_PTR)
-#define astTuneC(name,value,buff,bufflen) astTuneC_(name,value,buff,bufflen,STATUS_PTR)
-#define astI2P(integer) ((void *)astI2P_(integer,STATUS_PTR))
-#define astMakeId(pointer) ((void *)astMakeId_((AstObject *)(pointer),STATUS_PTR))
-#define astP2I(pointer) astP2I_((AstObject *)(pointer),STATUS_PTR)
-#define astMakePointer(id) ((void *)astCheckLock_(astMakePointer_((AstObject *)(id),STATUS_PTR),STATUS_PTR))
-#define astToString(this) astINVOKE(V,astToString_(astCheckObject(this),STATUS_PTR))
-#define astFromString(string) astINVOKE(O,astFromString_(string,STATUS_PTR))
-#define astCreatedAt(this,routine,file,line) astINVOKE(V,astCreatedAtId_((AstObject *)this,routine,file,line,STATUS_PTR))
-#define astActiveObjects(class,subclass,current) astINVOKE(O,astActiveObjects_(class,subclass,current,STATUS_PTR))
-
-
-/* Interfaces to member functions. */
-/* ------------------------------- */
-/* Here we make use of astCheckObject (et al.) to validate Object
-   pointers before use. This provides a contextual error report if a
-   pointer to the wrong sort of object is supplied. In the case of an
-   external caller, it also performs the required conversion from an
-   Object identifier to a true C pointer. */
-
-/* These functions require special treatment for external use because
-   they handle Object identifiers and their resources explicitly, and
-   must therefore be passed identifier values without conversion to C
-   pointers. */
-
-#if defined(astCLASS) || defined(astFORTRAN77) /* Protected or Fotran interface */
-#define astAnnulId(this) astINVOKE(O,astAnnulId_((AstObject *)(this),STATUS_PTR))
-#endif
-
-#if defined(astCLASS)                      /* Protected only */
-#define astAnnul(this) astINVOKE(O,astAnnul_(astCheckObject(this),STATUS_PTR))
-#define astDelete(this) astINVOKE(O,astDelete_(astCheckObject(this),STATUS_PTR))
-#define astSet astINVOKE(F,astSet_)
-
-#else                                          /* Public only */
-#define astAnnul(this) astINVOKE(O,astAnnulId_((AstObject *)(this),STATUS_PTR))
-#define astDelete(this) astINVOKE(O,astDeleteId_((AstObject *)(this),STATUS_PTR))
-#define astExport(this) astINVOKE(V,astExportId_((AstObject *)(this),STATUS_PTR))
-#define astImport(this) astINVOKE(V,astImportId_((AstObject *)(this),STATUS_PTR))
-#define astSet astINVOKE(F,astSetId_)
-#define astThread(this,ptr) astINVOKE(V,astThreadId_((AstObject *)(this),ptr,STATUS_PTR))
-#endif
-
-/* Both.... */
-#define astLock(this,wait) astINVOKE(V,astLockId_((AstObject *)(this),wait,STATUS_PTR))
-#define astUnlock(this,report) astINVOKE(V,astUnlockId_((AstObject *)(this),report,STATUS_PTR))
-#define astEqual(this,that) astINVOKE(V,(((AstObject*)this==(AstObject*)that)||astEqual_(astCheckObject(this),astCheckObject(that),STATUS_PTR)))
-#define astExempt(this) astINVOKE(V,astExemptId_((AstObject *)(this),STATUS_PTR))
-#define astClear(this,attrib) astINVOKE(V,astClear_(astCheckObject(this),attrib,STATUS_PTR))
-#define astClone(this) astINVOKE(O,astClone_(astCheckObject(this),STATUS_PTR))
-#define astCopy(this) astINVOKE(O,astCopy_(astCheckObject(this),STATUS_PTR))
-#define astGetC(this,attrib) astINVOKE(V,astGetC_(astCheckObject(this),attrib,STATUS_PTR))
-#define astGetD(this,attrib) astINVOKE(V,astGetD_(astCheckObject(this),attrib,STATUS_PTR))
-#define astGetF(this,attrib) astINVOKE(V,astGetF_(astCheckObject(this),attrib,STATUS_PTR))
-#define astGetI(this,attrib) \
-astINVOKE(V,astGetI_(astCheckObject(this),attrib,STATUS_PTR))
-#define astGetL(this,attrib) \
-astINVOKE(V,astGetL_(astCheckObject(this),attrib,STATUS_PTR))
-#define astSetC(this,attrib,value) \
-astINVOKE(V,astSetC_(astCheckObject(this),attrib,value,STATUS_PTR))
-#define astSetD(this,attrib,value) \
-astINVOKE(V,astSetD_(astCheckObject(this),attrib,value,STATUS_PTR))
-#define astSetF(this,attrib,value) \
-astINVOKE(V,astSetF_(astCheckObject(this),attrib,value,STATUS_PTR))
-#define astSetI(this,attrib,value) \
-astINVOKE(V,astSetI_(astCheckObject(this),attrib,value,STATUS_PTR))
-#define astSetL(this,attrib,value) \
-astINVOKE(V,astSetL_(astCheckObject(this),attrib,value,STATUS_PTR))
-#define astShow(this) \
-astINVOKE(V,astShow_(astCheckObject(this),STATUS_PTR))
-#define astTest(this,attrib) \
-astINVOKE(V,astTest_(astCheckObject(this),attrib,STATUS_PTR))
-#define astSame(this,that) \
-astINVOKE(V,astSame_(astCheckObject(this),astCheckObject(that),STATUS_PTR))
-#define astHasAttribute(this,attrib) \
-astINVOKE(V,astHasAttribute_(astCheckObject(this),attrib,STATUS_PTR))
-#define astGetProxy(this) \
-astINVOKE(V,astGetProxy_(astCheckObject(this),STATUS_PTR))
-#define astSetProxy(this,proxy) \
-astINVOKE(V,astSetProxy_(astCheckObject(this),proxy,STATUS_PTR))
-
-
-#if defined(astCLASS)            /* Protected */
-
-#if defined(THREAD_SAFE)
-#define astManageLock(this,mode,extra,fail) \
-astINVOKE(V,astManageLock_(astCheckObject(this),mode, extra,fail,STATUS_PTR))
-#else
-#define astManageLock(this,mode,extra,fail)
-#endif
-
-#define astCleanAttribs(this) astINVOKE(V,astCleanAttribs_(astCheckObject(this),STATUS_PTR))
-#define astGetObjSize(this) astINVOKE(V,astGetObjSize_(astCheckObject(this),STATUS_PTR))
-#define astCast(this,obj) astINVOKE(O,astCast_(astCheckObject(this),astCheckObject(obj),STATUS_PTR))
-#define astCastCopy(this,obj) astCastCopy_((AstObject*)this,(AstObject*)obj,STATUS_PTR)
-
-#define astClearUseDefs(this) astINVOKE(V,astClearUseDefs_(astCheckObject(this),STATUS_PTR))
-#define astTestUseDefs(this) astINVOKE(V,astTestUseDefs_(astCheckObject(this),STATUS_PTR))
-#define astGetUseDefs(this) astINVOKE(V,astGetUseDefs_(astCheckObject(this),STATUS_PTR))
-#define astSetUseDefs(this,val) astINVOKE(V,astSetUseDefs_(astCheckObject(this),val,STATUS_PTR))
-
-#define astClearAttrib(this,attrib) \
-astINVOKE(V,astClearAttrib_(astCheckObject(this),attrib,STATUS_PTR))
-#define astClearID(this) astINVOKE(V,astClearID_(astCheckObject(this),STATUS_PTR))
-#define astClearIdent(this) astINVOKE(V,astClearIdent_(astCheckObject(this),STATUS_PTR))
-#define astDump(this,channel) \
-astINVOKE(V,astDump_(astCheckObject(this),astCheckChannel(channel),STATUS_PTR))
-
-#define astGetAttrib(this,attrib) \
-astINVOKE(V,astGetAttrib_(astCheckObject(this),attrib,STATUS_PTR))
-#define astGetClass(this) astINVOKE(V,astGetClass_((const AstObject *)(this),STATUS_PTR))
-#define astGetID(this) astINVOKE(V,astGetID_(astCheckObject(this),STATUS_PTR))
-#define astGetIdent(this) astINVOKE(V,astGetIdent_(astCheckObject(this),STATUS_PTR))
-#define astGetNobject(this) astINVOKE(V,astGetNobject_(astCheckObject(this),STATUS_PTR))
-#define astClassCompare(class1,class2) astClassCompare_(class1,class2,STATUS_PTR)
-#define astGetRefCount(this) astINVOKE(V,astGetRefCount_(astCheckObject(this),STATUS_PTR))
-#define astSetAttrib(this,setting) \
-astINVOKE(V,astSetAttrib_(astCheckObject(this),setting,STATUS_PTR))
-#define astSetCopy(vtab,copy) \
-astINVOKE(V,astSetCopy_((AstObjectVtab *)(vtab),copy,STATUS_PTR))
-#define astSetDelete(vtab,delete) \
-astINVOKE(V,astSetDelete_((AstObjectVtab *)(vtab),delete,STATUS_PTR))
-#define astSetDump(vtab,dump,class,comment) \
-astINVOKE(V,astSetDump_((AstObjectVtab *)(vtab),dump,class,comment,STATUS_PTR))
-#define astSetVtab(object,vtab) \
-astINVOKE(V,astSetVtab_((AstObject *)object,(AstObjectVtab *)(vtab),STATUS_PTR))
-#define astSetID(this,id) astINVOKE(V,astSetID_(astCheckObject(this),id,STATUS_PTR))
-#define astSetIdent(this,id) astINVOKE(V,astSetIdent_(astCheckObject(this),id,STATUS_PTR))
-#define astVSet(this,settings,text,args) \
-astINVOKE(V,astVSet_(astCheckObject(this),settings,text,args,STATUS_PTR))
-#define astEnvSet(this) \
-astINVOKE(V,astEnvSet_(astCheckObject(this),STATUS_PTR))
-#define astTestAttrib(this,attrib) \
-astINVOKE(V,astTestAttrib_(astCheckObject(this),attrib,STATUS_PTR))
-#define astTestID(this) astINVOKE(V,astTestID_(astCheckObject(this),STATUS_PTR))
-#define astTestIdent(this) astINVOKE(V,astTestIdent_(astCheckObject(this),STATUS_PTR))
-
-/* Deprecated synonym. */
-#define astClass(this) astGetClass(this)
-#endif
-
-/* Extra stuff for debuging probnlems with object handles and memory usage */
-#ifdef MEM_DEBUG
-
-void astWatchHandle_( int );
-void astHandleUse_( int, const char *, ... );
-void astHandleAlarm_( const char *, va_list );
-
-#define astWatchHandle astWatchHandle_
-#define astHandleUse astHandleUse_
-#define astHandleAlarm astHandleAlarm_
-
-#else
-
-#define astWatchHandle
-#define astHandleUse
-#define astHandleAlarm
-
-#endif
-
-#endif
-