Files
calc/custom.h
Landon Curt Noll 4d32b138ed change libcalc dynamic library to link with libcustcalc
Under macOS, to reduce dependency chains, we remove functions
and data that are unreachable by the entry point or exported
symbols.  In particular, the macOS linker is used with both
"-dead_strip" and "-dead_strip_dylibs".

The libcalc shared library is now linked with libcustcalc.
2023-08-17 14:23:29 -07:00

84 lines
2.5 KiB
C

/*
* custom - interface for custom software and hardware interfaces
*
* Copyright (C) 1999-2007,2021,2023 Landon Curt Noll
*
* Calc is open software; you can redistribute it and/or modify it under
* the terms of the version 2.1 of the GNU Lesser General Public License
* as published by the Free Software Foundation.
*
* Calc 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 Lesser General
* Public License for more details.
*
* A copy of version 2.1 of the GNU Lesser General Public License is
* distributed with calc under the filename COPYING-LGPL. You should have
* received a copy with calc; if not, write to Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Under source code control: 1997/03/03 04:53:08
* File existed as early as: 1997
*
* chongo <was here> /\oo/\ http://www.isthe.com/chongo/
* Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
*/
/*
* Be careful what you put in this file, upper .c files include
* this file even when CUSTOM is not defined (ALLOW_CUSTOM="-UCUSTOM").
*
* Don't include anything, let the including .c file bring in:
*
* have_const.h
* value.h
*
* before they include this file.
*
* Keep this file down to a minimum. Don't put custom builtin function
* stuff in this file!
*/
#if !defined(CUSTOM_H)
#define CUSTOM_H
/*
* arg count definitions
*/
#define MAX_CUSTOM_ARGS 100 /* maximum number of custom arguments */
/*
* register count
*/
#define CUSTOM_REG_MAX 31 /* maximum custom register number */
/*
* custom function interface
*/
struct custom {
char *name; /* name of the custom builtin */
char *desc; /* very brief description of custom builtin */
short minargs; /* minimum number of arguments */
short maxargs; /* maximum number of arguments */
VALUE (*func)(char *name, int argc, VALUE **argv); /* custom func */
};
/*
* external declarations
*
* These are the required interfaces. The dummy.c stubs these interfaces too.
*/
E_FUNC int custom_compiled(void); /* return 1 ==> libcustcalc compiled w/CUSTOM defined, else return 0 */
E_FUNC VALUE custom(char*, int, VALUE**); /* master custom interface */
EXTERN BOOL allow_custom; /* TRUE => custom builtins allowed */
E_FUNC void showcustom(void); /* print custom functions */
E_FUNC void customhelp(char *); /* direct custom help */
E_FUNC void init_custreg(void); /* initialize custom registers */
#endif /* !CUSTOM_H */