83d84d7ee5
* NEW: Support for the Index class interface changes. * BUG: CSV import does not crash anymore when the imported file size is lower than 64K. * BUG: Do not crash if a component is not installed. [INTERPRETER] * BUG: Error.Text does not split the error message and its argument in debug mode. * BUG: Fix many breaks in strict aliasing rules. [SCRIPTER] * BUG: Do not crash if a component is not installed. [GB.DB] * NEW: Better support for postgresql schemas. * NEW: Connection.Quote() takes one more optional boolean argument that tells if we want to quote a table name. In that case, schemas are taken into account. * NEW: Connection.FormatBlob() is a new function that returns a string that can be used as a blob contents in a SQL expression. * NEW: Index.Fields now returns a string array of index fields. * NEW: Index.Add() second argument is now a string array of index fields. git-svn-id: svn://localhost/gambas/trunk@2442 867c0c6c-44f3-4631-809d-bfa615b0a4ec
100 lines
2.2 KiB
C
100 lines
2.2 KiB
C
/***************************************************************************
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gbx_variant.h
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(c) 2000-2009 Benoît Minisini <gambas@users.sourceforge.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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***************************************************************************/
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#ifndef __VARIANT_H
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#define __VARIANT_H
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#include "gbx_type.h"
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#include "gbx_string.h"
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#include "gbx_object.h"
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typedef
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struct
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{
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TYPE type;
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union
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{
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char *_string;
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void *_object;
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int64_t data;
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}
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value;
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}
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VARIANT;
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//#define VARIANT_copy_value(_dst, _src) (*((int64_t *)((_dst)->value)) = *((int64_t *)((_src)->value)))
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#define VARIANT_copy_value(_dst, _src) (_dst)->value.data = (_src)->value.data
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static INLINE void VARIANT_undo(VALUE *val)
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{
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if (val->type == T_VARIANT)
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VALUE_conv(val, val->_variant.vtype);
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}
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static INLINE void VARIANT_free(VARIANT *var)
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{
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if (var->type == T_STRING)
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{
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STRING_unref(&var->value._string);
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}
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else if (TYPE_is_object(var->type))
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{
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OBJECT_UNREF(var->value._object, "VARIANT_free");
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}
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}
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static INLINE void VARIANT_keep(VARIANT *var)
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{
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if (var->type == T_STRING)
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{
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STRING_ref(var->value._string);
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}
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else if (TYPE_is_object(var->type))
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{
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OBJECT_REF(var->value._object, "VARIANT_keep");
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}
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}
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static INLINE boolean VARIANT_is_null(VARIANT *var)
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{
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if (var->type == T_NULL)
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return TRUE;
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if (var->type == T_STRING && !var->value._string)
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return TRUE;
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if (TYPE_is_object(var->type) && !var->value._object)
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return TRUE;
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return FALSE;
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}
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static INLINE void VARIANT_clear(VARIANT *var)
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{
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VARIANT_free(var);
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var->type = 0;
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var->value.data = 0;
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}
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#endif
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