CMakeLua/Source/CursesDialog/form/fld_ftlink.c

   1 /****************************************************************************
   2  * Copyright (c) 1998 Free Software Foundation, Inc.                        *
   3  *                                                                          *
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   5  * copy of this software and associated documentation files (the            *
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   9  * copies of the Software, and to permit persons to whom the Software is    *
  10  * furnished to do so, subject to the following conditions:                 *
  11  *                                                                          *
  12  * The above copyright notice and this permission notice shall be included  *
  13  * in all copies or substantial portions of the Software.                   *
  14  *                                                                          *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
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  28
  29 /****************************************************************************
  30  *   Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997            *
  31  ****************************************************************************/
  32
  33 #include "form.priv.h"
  34
  35 MODULE_ID("$Id: fld_ftlink.c,v 1.1 2001/11/05 16:53:00 berk Exp $")
  36
  37 /*---------------------------------------------------------------------------
  38 |   Facility      :  libnform
  39 |   Function      :  FIELDTYPE *link_fieldtype(
  40 |                                FIELDTYPE *type1,
  41 |                                FIELDTYPE *type2)
  42 |
  43 |   Description   :  Create a new fieldtype built from the two given types.
  44 |                    They are connected by an logical 'OR'.
  45 |                    If an error occurs, errno is set to
  46 |                       E_BAD_ARGUMENT  - invalid arguments
  47 |                       E_SYSTEM_ERROR  - system error (no memory)
  48 |
  49 |   Return Values :  Fieldtype pointer or NULL if error occured.
  50 +--------------------------------------------------------------------------*/
  51 FIELDTYPE *link_fieldtype(FIELDTYPE * type1, FIELDTYPE * type2)
  52 {
  53   FIELDTYPE *nftyp = (FIELDTYPE *)0;
  54
  55   if ( type1 && type2 )
  56     {
  57       nftyp = (FIELDTYPE *)malloc(sizeof(FIELDTYPE));
  58       if (nftyp)
  59         {
  60           *nftyp = *_nc_Default_FieldType;
  61           nftyp->status |= _LINKED_TYPE;
  62           if ((type1->status & _HAS_ARGS) || (type2->status & _HAS_ARGS) )
  63             nftyp->status |= _HAS_ARGS;
  64           if ((type1->status & _HAS_CHOICE) || (type2->status & _HAS_CHOICE) )
  65             nftyp->status |= _HAS_CHOICE;
  66           nftyp->left  = type1;
  67           nftyp->right = type2;
  68           type1->ref++;
  69           type2->ref++;
  70         }
  71       else
  72         {
  73           SET_ERROR( E_SYSTEM_ERROR );
  74         }
  75     }
  76   else
  77     {
  78       SET_ERROR( E_BAD_ARGUMENT );
  79     }
  80   return nftyp;
  81 }
  82
  83 /* fld_ftlink.c ends here */