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Kitware
GitHub Repository: Kitware/CMake
 Path: blob/master/Source/CursesDialog/form/fld_arg.c
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/****************************************************************************

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 * Copyright (c) 1998 Free Software Foundation, Inc.                        *

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 *                                                                          *

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 * Permission is hereby granted, free of charge, to any person obtaining a  *

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 * copy of this software and associated documentation files (the            *

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 * "Software"), to deal in the Software without restriction, including      *

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 * without limitation the rights to use, copy, modify, merge, publish,      *

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 * distribute, distribute with modifications, sublicense, and/or sell       *

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 * copies of the Software, and to permit persons to whom the Software is    *

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 * furnished to do so, subject to the following conditions:                 *

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 *                                                                          *

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 * The above copyright notice and this permission notice shall be included  *

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 * in all copies or substantial portions of the Software.                   *

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 *                                                                          *

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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *

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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *

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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *

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 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *

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 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *

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 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *

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 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *

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 *                                                                          *

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 * Except as contained in this notice, the name(s) of the above copyright   *

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 * holders shall not be used in advertising or otherwise to promote the     *

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 * sale, use or other dealings in this Software without prior written       *

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 * authorization.                                                           *

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 ****************************************************************************/

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/****************************************************************************

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 *   Author: Juergen Pfeifer <[email protected]> 1995,1997            *

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 ****************************************************************************/

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#include "form.priv.h"

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MODULE_ID("$Id$")

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/*---------------------------------------------------------------------------

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|   Facility      :  libnform  

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|   Function      :  int set_fieldtype_arg(

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|                            FIELDTYPE *typ,

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|                            void * (* const make_arg)(va_list *),

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|                            void * (* const copy_arg)(const void *),

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|                            void   (* const free_arg)(void *) )

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|   

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|   Description   :  Connects to the type additional arguments necessary

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|                    for a set_field_type call. The various function pointer

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|                    arguments are:

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|                       make_arg : allocates a structure for the field

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|                                  specific parameters.

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|                       copy_arg : duplicate the structure created by

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|                                  make_arg

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|                       free_arg : Release the memory allocated by make_arg

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|                                  or copy_arg

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|

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|                    At least make_arg must be non-NULL.

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|                    You may pass NULL for copy_arg and free_arg if your

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|                    make_arg function doesn't allocate memory and your

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|                    arg fits into the storage for a (void*).

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|

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|   Return Values :  E_OK           - success

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|                    E_BAD_ARGUMENT - invalid argument

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+--------------------------------------------------------------------------*/

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int set_fieldtype_arg(FIELDTYPE * typ,

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		      void * (* const make_arg)(va_list *),

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		      void * (* const copy_arg)(const void *),

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		      void   (* const free_arg)(void *))

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{

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  if ( !typ || !make_arg )

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    RETURN(E_BAD_ARGUMENT);

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  typ->status |= _HAS_ARGS;

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  typ->makearg = make_arg;

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  typ->copyarg = copy_arg;

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  typ->freearg = free_arg;

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  RETURN(E_OK);

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}

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/*---------------------------------------------------------------------------

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|   Facility      :  libnform  

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|   Function      :  void *field_arg(const FIELD *field)

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|   

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|   Description   :  Retrieve pointer to the fields argument structure.

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|

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|   Return Values :  Pointer to structure or NULL if none is defined.

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+--------------------------------------------------------------------------*/

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void *field_arg(const FIELD * field)

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{

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  return Normalize_Field(field)->arg;

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}

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/* fld_arg.c ends here */

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