include/tdsstring.h

00001 /* FreeTDS - Library of routines accessing Sybase and Microsoft databases
00002  * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004  Brian Bruns
00003  *
00004  * This library is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Library General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2 of the License, or (at your option) any later version.
00008  *
00009  * This library is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * Library General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Library General Public
00015  * License along with this library; if not, write to the
00016  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00017  * Boston, MA 02111-1307, USA.
00018  */
00019 
00020 #ifndef _tdsstring_h_
00021 #define _tdsstring_h_
00022 
00023 /* $Id: tdsstring.h,v 1.15 2005/07/07 18:34:10 freddy77 Exp $ */
00024 
00025 extern const struct DSTR_STRUCT tds_str_empty;
00026 
00027 /* TODO do some function and use inline if available */
00028 
00033 #if ENABLE_EXTRA_CHECKS
00034 void tds_dstr_init(DSTR * s);
00035 int tds_dstr_isempty(DSTR * s);
00036 char *tds_dstr_cstr(DSTR * s);
00037 size_t tds_dstr_len(DSTR * s);
00038 #else
00039 
00040 #define tds_dstr_init(s) \
00041         do { *(s) = (DSTR) &tds_str_empty; } while(0)
00042 
00044 #define tds_dstr_isempty(s) \
00045         ((*(s))->dstr_s[0] == '\0')
00046 #define tds_dstr_cstr(s) \
00047         ((*(s))->dstr_s)
00048 #define tds_dstr_len(s) \
00049         strlen((*(s))->dstr_s)
00050 #endif
00051 
00052 void tds_dstr_zero(DSTR * s);
00053 void tds_dstr_free(DSTR * s);
00054 
00055 DSTR tds_dstr_copy(DSTR * s, const char *src);
00056 DSTR tds_dstr_copyn(DSTR * s, const char *src, unsigned int length);
00057 DSTR tds_dstr_set(DSTR * s, char *src);
00058 
00061 #endif /* _tdsstring_h_ */

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