/* crypto/stack/stack.h */
/* Copyright (C) 1995-1996 Eric Young (eay@mincom.oz.au)
 * All rights reserved.
 * 
 * This file is part of an SSL implementation written
 * by Eric Young (eay@mincom.oz.au).
 * The implementation was written so as to conform with Netscapes SSL
 * specification.  This library and applications are
 * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
 * as long as the following conditions are aheared to.
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.  If this code is used in a product,
 * Eric Young should be given attribution as the author of the parts used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by Eric Young (eay@mincom.oz.au)
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#ifndef HEADER_STACK_H
#define HEADER_STACK_H

#ifdef  __cplusplus
extern "C" {
#endif

typedef struct stack_st
	{
	int num;
	char **data;
	int sorted;

	int num_alloc;
	int (*comp)();
	} STACK;

#define sk_num(sk)	((sk)->num)
#define sk_value(sk,n)	((sk)->data[n])

#define sk_new_null()	sk_new(NULL)
#ifndef NOPROTO

STACK *sk_new(int (*cmp)());
void sk_free(STACK *);
void sk_pop_free(STACK *st, void (*func)());
int sk_insert(STACK *sk,char *data,int where);
char *sk_delete(STACK *st,int loc);
char *sk_delete_ptr(STACK *st, char *p);
int sk_find(STACK *st,char *data);
int sk_push(STACK *st,char *data);
int sk_unshift(STACK *st,char *data);
char *sk_shift(STACK *st);
char *sk_pop(STACK *st);

#else

STACK *sk_new();
void sk_free();
void sk_pop_free();
int sk_insert();
char *sk_delete();
char *sk_delete_ptr();
int sk_find();
int sk_push();
int sk_unshift();
char *sk_shift();
char *sk_pop();

#endif

#ifdef  __cplusplus
}
#endif

#endif

.