利用栈实现二进制转换为十进制

//利用栈实现二进制转换为十进制
#include
#include
#include

#define STACK_INIT_SIZE 20
#define STACKINCREMENT 10
typedef char ElemType;
typedef struct{
ElemType *base;
ElemType *top;
int stackSize;
}sqStack;

//栈的初始化操作
void InitStack(sqStack *s){
s->base=(ElemType *)malloc(STACK_INIT_SIZE*sizeof(ElemType));
if(!s->base)
exit(0);
s->top=s->base;
s->stackSize=STACK_INIT_SIZE;
}

//进栈操作
void Push(sqStack *s,ElemType e){
if(s->top-s->base>=s->stackSize){
s->base=(ElemType *)realloc(s->base,(s->stackSize+STACKINCREMENT)*sizeof(ElemType));
if(!s->base)
exit(0);
}
*(s->top)=e;
s->top++;
}

//出栈操作
void Pop(sqStack *s,ElemType *e){
if(s->top==s->base)
return ;
*e=*--(s->top);
}

//栈的当前容量
int StackLen(sqStack s){
return (s.top-s.base);
}

int main(){
ElemType c;
sqStack s;
int len,i,sum=0;
InitStack(&s);
printf("请输入二进制数，用#结束：");
scanf("%c",&c);
while(c!='#'){
Push(&s,c);
scanf("%c",&c);
}
getchar();
len=StackLen(s);
printf("栈的当前容量：%d\n",len);
for(i=0;i