泛型栈

  1 #ifndef AVALON_STACK_H
  2 #define AVALON_STACK_H
  3 #include <stdio.h>
  4 #include <string.h>
  5 #include <assert.h>
  6 
  7 #ifndef AVALON_BOOL
  8 #define AVALON_BOOL
  9 #define TRUE 1
 10 #define FALSE 0
 11 typedef int BOOL;/*自定义的BOOL型*/
 12 #endif
 13 
 14 /*定义一个栈结构*/
 15 #define DECLARE_NODE(type,name)  16 typedef struct type##NODE 17 { 18 type data; 19 struct type##NODE *prior; 20 }NODE##name;
 21 
 22 #define DECLARE_STACK(type,name)  23 struct type##STACK 24 { 25 int size; 26 struct type##NODE *base; 27 struct type##NODE *top; 28 }STACK##name;
 29 
 30 /*泛类型栈定义*/
 31 #define DECLARE(type,name)  32 DECLARE_NODE(type,name);  33 DECLARE_STACK(type,name);
 34 /***********************************************/
 35 /*初始化栈,name为新声明的栈名字的地址 */
 36 #define INIT(name)  37 do{ 38 STACK##name.base=STACK##name.top=NULL; 39 STACK##name.size=0; 40 }while(0)
 41 
 42 /*********** 不破坏栈顶元素取值*************************/
 43 #define GET(name,elem)  44 do{ 45 if(STACK##name.size != 0){ 46 elem=STACK##name.top->data;  47 } 48 }while(0)
 49 
 50 /************** 压入元素elem **************************/
 51 #define PUSH(name,elem)  52 do{ 53 NODE##name *temp=(NODE##name *)malloc(sizeof(NODE##name)); 54 assert(temp); 55 temp->data=elem ; 56 (STACK##name.size)++;  57 if(1 != STACK##name.size ){  58 temp->prior=STACK##name.top; 59 STACK##name.top=temp; 60 } 61 else{ 62 temp->prior=NULL; 63 STACK##name.top=STACK##name.base=temp; 64 } 65 }while(0)
 66 
 67 /********** 栈顶元素赋值给elem,并弹出 ***********/
 68 #define POP(name,elem)  69 do{ 70 NODE##name * temp=STACK##name.top; 71 if(STACK##name.size !=0 ){  72 *elem =STACK##name.top->data;  73 if( STACK##name.size !=1){  74 STACK##name.top =temp->prior;  75 free(temp); 76 } 77 else  78 STACK##name.top=STACK##name.base=NULL; 79 (STACK##name.size)--; 80 } 81 }while(0)
 82 
 83 /************** 清空栈 ************************/
 84 #define CLEAR(name)  85 do{ 86 NODE##name * temp; 87 while( STACK##name.size-- !=0){ 88 temp=STACK##name.top; 89 STACK##name.top=STACK##name.top->prior; 90 free(temp); 91 } 92 STACK##name.size=0; 93 STACK##name.base=STACK##name.top=NULL; 94 }while(0)
 95 
 96 /****************栈空 ************************/
 97 #define EMPTY(name) ( STACK##name.size == 0 )
 98 
 99 /*****************长度 ************************/
100 #define LENGTH(name) (1 ? STACK##name.size : 0)
101 #endif

 1 #include "stack.h"
 2 #include <stdio.h>
 3 #include <stdlib.h>
 4 
 5 int main(void)
 6 {
 7 DECLARE(int,A);
 8 DECLARE(double,B);
 9 double b;
10 int a;
11 INIT(A);
12 INIT(B);
13 printf("%d ",LENGTH(A));
14 for(a=1;a<=10000 ;a++){
15 PUSH(A,a);
16 PUSH(A,a);
17 PUSH(A,a);
18 }
19 printf("%d ",LENGTH(A));
20 for(b=1;b<=10000;b++){
21 PUSH(B,b);
22 }
23 while( ! EMPTY(A)){
24 POP(A,&a);
25 if( ! EMPTY(B)){
26 POP(B,&b);
27 }
28 }
29 CLEAR(A);
30 system("PAUSE");
31 return 0;
32 }