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/* do not edit automatically generated by mc from mcStack. */
/* mcStack.def provides a stack data type and associated procedures.
Copyright (C) 2015-2025 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
This file is part of GNU Modula-2.
GNU Modula-2 is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Modula-2 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Modula-2; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#if !defined (_mcStack_H)
# define _mcStack_H
#include "config.h"
#include "system.h"
# ifdef __cplusplus
extern "C" {
# endif
#include <stdbool.h>
# if !defined (PROC_D)
# define PROC_D
typedef void (*PROC_t) (void);
typedef struct { PROC_t proc; } PROC;
# endif
# include "GSYSTEM.h"
# if defined (_mcStack_C)
# define EXTERN
# else
# define EXTERN extern
# endif
#if !defined (mcStack_stack_D)
# define mcStack_stack_D
typedef void *mcStack_stack;
#endif
/*
init - create and return a stack.
*/
EXTERN mcStack_stack mcStack_init (void);
/*
kill - deletes stack, s.
*/
EXTERN void mcStack_kill (mcStack_stack *s);
/*
push - an address, a, onto the stack, s.
It returns, a.
*/
EXTERN void * mcStack_push (mcStack_stack s, void * a);
/*
pop - and return the top element from stack, s.
*/
EXTERN void * mcStack_pop (mcStack_stack s);
/*
replace - performs a pop; push (a); return a.
*/
EXTERN void * mcStack_replace (mcStack_stack s, void * a);
/*
depth - returns the depth of the stack.
*/
EXTERN unsigned int mcStack_depth (mcStack_stack s);
/*
access - returns the, i, th stack element.
The top of stack is defined by:
access (s, depth (s)).
*/
EXTERN void * mcStack_access (mcStack_stack s, unsigned int i);
# ifdef __cplusplus
}
# endif
# undef EXTERN
#endif
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