freebsd-dev/contrib/ncurses/form/fld_ftlink.c

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/****************************************************************************
* Copyright (c) 1998,2000 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************/
/****************************************************************************
* Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 *
****************************************************************************/
#include "form.priv.h"
MODULE_ID("$Id: fld_ftlink.c,v 1.5 2000/12/10 02:09:38 tom Exp $")
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : FIELDTYPE *link_fieldtype(
| FIELDTYPE *type1,
| FIELDTYPE *type2)
|
| Description : Create a new fieldtype built from the two given types.
| They are connected by an logical 'OR'.
| If an error occurs, errno is set to
| E_BAD_ARGUMENT - invalid arguments
| E_SYSTEM_ERROR - system error (no memory)
|
| Return Values : Fieldtype pointer or NULL if error occured.
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(FIELDTYPE *)
link_fieldtype
(FIELDTYPE * type1, FIELDTYPE * type2)
{
FIELDTYPE *nftyp = (FIELDTYPE *)0;
if ( type1 && type2 )
{
nftyp = (FIELDTYPE *)malloc(sizeof(FIELDTYPE));
if (nftyp)
{
*nftyp = *_nc_Default_FieldType;
nftyp->status |= _LINKED_TYPE;
if ((type1->status & _HAS_ARGS) || (type2->status & _HAS_ARGS) )
nftyp->status |= _HAS_ARGS;
if ((type1->status & _HAS_CHOICE) || (type2->status & _HAS_CHOICE) )
nftyp->status |= _HAS_CHOICE;
nftyp->left = type1;
nftyp->right = type2;
type1->ref++;
type2->ref++;
}
else
{
SET_ERROR( E_SYSTEM_ERROR );
}
}
else
{
SET_ERROR( E_BAD_ARGUMENT );
}
return nftyp;
}
/* fld_ftlink.c ends here */