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/*
* The Regina Rexx Interpreter
* Copyright (C) 1992-1994 Anders Christensen <anders@pvv.unit.no>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* $Id: strings.h,v 1.12 2003/12/19 07:17:07 florian Exp $
*/
#ifndef _STRINGS_ALREADY_DEFINED_
#define _STRINGS_ALREADY_DEFINED_
typedef struct strengtype {
int len, max ;
#ifdef CHECK_MEMORY /* FGC: Test */
char *value;
#else
char value[4] ;
#endif
} streng ;
/*
* Some strange define's to allow constant strengs to be defined. They will
* be accessible as pointers.
*/
#ifdef CHECK_MEMORY
# define conststreng(name,value) const streng __regina__##name = { sizeof( value ) - 1, \
sizeof( value ) - 1, \
value }; \
const streng *name = (const streng *) &__regina__##name
# define staticstreng(name,value) static streng x_##name = { sizeof( value ) - 1, \
sizeof( value ) - 1, \
value }; \
const static streng *name = (const streng *) &x_##name
#else
# define conststreng(name,value) const struct { \
int len, max; \
char content[sizeof( value )]; \
} x__regina__##name = { sizeof( value ) - 1, \
sizeof( value ) - 1, \
value }; \
const streng *name = (streng *) &x__regina__##name
# define staticstreng(name,value) static struct { \
int len, max; \
char content[sizeof( value )]; \
} x_##name = { sizeof( value ) - 1, \
sizeof( value ) - 1, \
value }; \
static const streng *name = (const streng *) &x_##name
#endif
#define STRENG_TYPEDEFED 1
#define Str_len(a) ((a)->len)
#define Str_max(a) ((a)->max)
#define Str_val(a) ((a)->value)
#define Str_in(a,b) (Str_len(a)>(b))
#define Str_end(a) ((a)->value+Str_len(a))
#define Str_zero(a) ((Str_len(a)<Str_max(a)) && ((a)->value[(a)->len]==0x00))
#define STRHEAD (1+(sizeof(int)<<1))
typedef struct num_descr_type
{
char *num ; /* pointer to matissa of presicion + 1 */
int negative ; /* boolean, true if negative number */
int exp ; /* value of exponent */
int size ; /* how much of num is actually used */
int max ; /* how much can num actually take */
/*
* The number of used digits depends on its usage. In general, it's a good
* idea to use the standard value. used_digits shall be reset after each
* computation and may or may be be respected. It shall be respected, and
* this is the intention, by str_norm and all other function which make
* a string from the number accidently. Functions like string_add may
* or may not use this value.
* fixes bug 675395
*/
int used_digits;
} num_descr ;
#endif /* _STRINGS_ALREADY_INCLUDED_ */
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