栈的十六进制转换c语言

以下是一个栈的十六进制转换C语言的例子：

#include <stdio.h>
#include <stdlib.h>

#define STACK_INIT_SIZE 100
#define STACKINCREMENT 10
#define OK 1
#define ERROR 0
#define TRUE 1
#define FALSE 0

typedef int Status;
typedef char SElemType;

typedef struct {
    SElemType *base;
    SElemType *top;
    int stacksize;
} SqStack;

Status InitStack(SqStack *S) {
    S->base = (SElemType *)malloc(STACK_INIT_SIZE * sizeof(SElemType));
    if (!S->base) {
        exit(ERROR);
    }
    S->top = S->base;
    S->stacksize = STACK_INIT_SIZE;
    return OK;
}

Status Push(SqStack *S, SElemType e) {
    if (S->top - S->base >= S->stacksize) {
        S->base = (SElemType *)realloc(S->base, (S->stacksize + STACKINCREMENT) * sizeof(SElemType));
        if (!S->base) {
            exit(ERROR);
        }
        S->top = S->base + S->stacksize;
        S->stacksize += STACKINCREMENT;
    }
    *(S->top++) = e;
    return OK;
}

Status Pop(SqStack *S, SElemType *e) {
    if (S->top == S->base) {
        return ERROR;
    }
    *e = *(--S->top);
    return OK;
}

int StackLen(SqStack S) {
    return S.top - S.base;
}

int main() {
    SqStack S;
    int n;
    SElemType c;
    InitStack(&S);
    printf("请输入一个十进制数：");
    scanf("%d", &n);
    while (n) {
        Push(&S, n % 16);
        n /= 16;
    }
    printf("转换为十六进制数为：");
    while (StackLen(S)) {
        Pop(&S, &c);
        if (c < 10) {
            printf("%d", c);
        } else {
            printf("%c", c - 10 + 'A');
        }
    }
    printf("\n");
    return 0;
}