1  /*
 2   *  Bean Java VM
 3   *  Copyright (C) 2005-2015 Christian Lins <christian@lins.me>
 4   *
 5   *  Licensed under the Apache License, Version 2.0 (the "License");
 6   *  you may not use this file except in compliance with the License.
 7   *  You may obtain a copy of the License at
 8   *
 9   *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   *  Unless required by applicable law or agreed to in writing, software
12   *  distributed under the License is distributed on an "AS IS" BASIS,
13   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   *  See the License for the specific language governing permissions and
15   *  limitations under the License.
16   */
17  
18  #ifndef _STACK_H_
19  #define _STACK_H_
20  
21  #include <stdint.h>
22  #include <types.h>
23  
24  #include <method.h>
25  
26  typedef struct StackElement
27  {
28      void*                data; /* data structure */
29      struct StackElement* next; /* ptr to next element */
30  } StackElement;
31  
32  typedef struct Stack
33  {
34      unsigned int limit;   /* maximum number of elements */
35      unsigned int size;    /* current number of elements */
36      StackElement* top;
37  } Stack;
38  
39  
40  Stack* Stack_new(unsigned int limit);
41  void Stack_destroy(Stack* stack);
42  int Stack_pop(Stack* stack, void** data);
43  int Stack_push(Stack* stack, void* data);
44  
45  #endif