?? fld_newftyp.c
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/**************************************************************************** * Copyright (c) 1998-2002,2003 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, 1995,1997 * ****************************************************************************/#include "form.priv.h"MODULE_ID("$Id: fld_newftyp.c,v 1.9 2003/11/08 20:45:36 tom Exp $")static FIELDTYPE const default_fieldtype = { 0, /* status */ 0L, /* reference count */ (FIELDTYPE *)0, /* pointer to left operand */ (FIELDTYPE *)0, /* pointer to right operand */ NULL, /* makearg function */ NULL, /* copyarg function */ NULL, /* freearg function */ NULL, /* field validation function */ NULL, /* Character check function */ NULL, /* enumerate next function */ NULL /* enumerate previous function */};NCURSES_EXPORT_VAR(const FIELDTYPE*) _nc_Default_FieldType = &default_fieldtype;/*---------------------------------------------------------------------------| Facility : libnform | Function : FIELDTYPE *new_fieldtype(| bool (* const field_check)(FIELD *,const void *),| bool (* const char_check) (int, const void *) ) | | Description : Create a new fieldtype. The application programmer must| write a field_check and a char_check function and give| them as input to this call.| 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 occurred+--------------------------------------------------------------------------*/NCURSES_EXPORT(FIELDTYPE *)new_fieldtype ( bool (* const field_check)(FIELD *,const void *), bool (* const char_check) (int,const void *) ){ FIELDTYPE *nftyp = (FIELDTYPE *)0; if ( (field_check) || (char_check) ) { nftyp = (FIELDTYPE *)malloc(sizeof(FIELDTYPE)); if (nftyp) { *nftyp = default_fieldtype; nftyp->fcheck = field_check; nftyp->ccheck = char_check; } else { SET_ERROR( E_SYSTEM_ERROR ); } } else { SET_ERROR( E_BAD_ARGUMENT ); } return nftyp;}/*---------------------------------------------------------------------------| Facility : libnform | Function : int free_fieldtype(FIELDTYPE *typ)| | Description : Release the memory associated with this fieldtype.|| Return Values : E_OK - success| E_CONNECTED - there are fields referencing the type| E_BAD_ARGUMENT - invalid fieldtype pointer+--------------------------------------------------------------------------*/NCURSES_EXPORT(int)free_fieldtype (FIELDTYPE *typ){ if (!typ) RETURN(E_BAD_ARGUMENT); if (typ->ref!=0) RETURN(E_CONNECTED); if (typ->status & _RESIDENT) RETURN(E_CONNECTED); if (typ->status & _LINKED_TYPE) { if (typ->left ) typ->left->ref--; if (typ->right) typ->right->ref--; } free(typ); RETURN(E_OK);}/* fld_newftyp.c ends here */
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