| 1 | /****************************************************************************
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| 2 | * Copyright (c) 1998-2003,2004 Free Software Foundation, Inc. *
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| 3 | * *
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a *
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| 5 | * copy of this software and associated documentation files (the *
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| 6 | * "Software"), to deal in the Software without restriction, including *
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| 7 | * without limitation the rights to use, copy, modify, merge, publish, *
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| 8 | * distribute, distribute with modifications, sublicense, and/or sell *
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| 9 | * copies of the Software, and to permit persons to whom the Software is *
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| 10 | * furnished to do so, subject to the following conditions: *
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| 11 | * *
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| 12 | * The above copyright notice and this permission notice shall be included *
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| 13 | * in all copies or substantial portions of the Software. *
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| 14 | * *
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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| 16 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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| 17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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| 18 | * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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| 19 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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| 20 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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| 21 | * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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| 22 | * *
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| 23 | * Except as contained in this notice, the name(s) of the above copyright *
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| 24 | * holders shall not be used in advertising or otherwise to promote the *
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| 25 | * sale, use or other dealings in this Software without prior written *
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| 26 | * authorization. *
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| 27 | ****************************************************************************/
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| 28 |
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| 29 | /****************************************************************************
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| 30 | * Author: Juergen Pfeifer, 1995,1997 *
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| 31 | ****************************************************************************/
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| 32 |
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| 33 | #include "form.priv.h"
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| 34 |
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| 35 | MODULE_ID("$Id: fld_ftlink.c,v 1.11 2004/12/25 22:24:10 tom Exp $")
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| 36 |
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| 37 | /*---------------------------------------------------------------------------
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| 38 | | Facility : libnform
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| 39 | | Function : FIELDTYPE *link_fieldtype(
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| 40 | | FIELDTYPE *type1,
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| 41 | | FIELDTYPE *type2)
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| 42 | |
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| 43 | | Description : Create a new fieldtype built from the two given types.
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| 44 | | They are connected by an logical 'OR'.
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| 45 | | If an error occurs, errno is set to
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| 46 | | E_BAD_ARGUMENT - invalid arguments
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| 47 | | E_SYSTEM_ERROR - system error (no memory)
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| 48 | |
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| 49 | | Return Values : Fieldtype pointer or NULL if error occurred.
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| 50 | +--------------------------------------------------------------------------*/
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| 51 | NCURSES_EXPORT(FIELDTYPE *)
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| 52 | link_fieldtype(FIELDTYPE *type1, FIELDTYPE *type2)
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| 53 | {
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| 54 | FIELDTYPE *nftyp = (FIELDTYPE *)0;
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| 55 |
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| 56 | T((T_CALLED("link_fieldtype(%p,%p)"), type1, type2));
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| 57 | if (type1 && type2)
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| 58 | {
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| 59 | nftyp = (FIELDTYPE *)malloc(sizeof(FIELDTYPE));
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| 60 |
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| 61 | if (nftyp)
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| 62 | {
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| 63 | *nftyp = *_nc_Default_FieldType;
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| 64 | nftyp->status |= _LINKED_TYPE;
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| 65 | if ((type1->status & _HAS_ARGS) || (type2->status & _HAS_ARGS))
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| 66 | nftyp->status |= _HAS_ARGS;
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| 67 | if ((type1->status & _HAS_CHOICE) || (type2->status & _HAS_CHOICE))
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| 68 | nftyp->status |= _HAS_CHOICE;
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| 69 | nftyp->left = type1;
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| 70 | nftyp->right = type2;
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| 71 | type1->ref++;
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| 72 | type2->ref++;
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| 73 | }
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| 74 | else
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| 75 | {
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| 76 | SET_ERROR(E_SYSTEM_ERROR);
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| 77 | }
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| 78 | }
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| 79 | else
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| 80 | {
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| 81 | SET_ERROR(E_BAD_ARGUMENT);
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| 82 | }
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| 83 | returnFieldType(nftyp);
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| 84 | }
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| 85 |
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| 86 | /* fld_ftlink.c ends here */
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