44 lines
747 B
C
44 lines
747 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include "linked_list_stack.h"
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// 初始栈
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stack_linked* init_stack_linked(void)
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{
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stack_linked* s = (stack_linked*)malloc(sizeof(stack_linked));
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if (s == NULL)
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{
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printf("内存分配失败！\n");
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return NULL;
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}
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s->top = NULL;
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s->size = 0;
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return s;
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}
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// 入栈
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void push_stack_linked(stack_linked* s, elem_type value)
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{
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stack_node* node = (stack_node*)malloc(sizeof(stack_node));
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if (node == NULL)
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{
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printf("内存分配失败！\n");
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return NULL;
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}
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node->value = value;
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node->next = s->top;
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s->top = node;
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s->size++;
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}
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// 出栈
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int pop_stack_linked(stack_linked* s)
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{
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int flog = 0;
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flog = s->top->value;
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stack_node* tmp = s->top;
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s->top = s->top->next;
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free(tmp);
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tmp = NULL;
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return flog;
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} |