C language array stack implementation template

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SeqStack.h

#pragma once
#define MAX_SIZE 1024
 
typedef struct SEQSTACK
{
 void* data[MAX_SIZE];
 int size;
}SeqStack;
 
SeqStack* Init_SeqStack();      //  Initialize the stack 
void Push_SeqStack(SeqStack* stack, void* data); //  Into the stack 
void* Top_SeqStack(SeqStack* stack);    //  Returns the top element of the stack 
void Pop_SeqStack(SeqStack* stack);    //  Out of the stack 
int IsEmpty(SeqStack* stack);     //  Determine if it is empty 
int Size_SeqStack(SeqStack* stack);    //  Returns the number of elements in the stack 
void Clear_SeqStack(SeqStack* stack);   //  Empty stack 
void FreeSpace_SeqStack(SeqStack* stack);  //  Destruction of the stack 

SeqStack. cpp function implementation

#include "SeqStack.h"
#include <stdio.h>
#include <stdlib.h>
 
SeqStack* Init_SeqStack()
{
 SeqStack* stack = (SeqStack*)malloc(sizeof(SeqStack));
 for (int i = 0; i < MAX_SIZE; i++)
 {
 stack->data[i] = NULL;
 }
 stack->size = 0;
 
 return stack;
}
 
void Push_SeqStack(SeqStack* stack, void* data)
{
 if (stack == NULL)
 return;
 if (stack->size == MAX_SIZE)  //  The stack is full 
 return;
 if (data == NULL)
 return;
 
 stack->data[stack->size] = data;
 stack->size++;
}
 
void* Top_SeqStack(SeqStack* stack)    //  Returns the top element of the stack , Don't pop up 
{
 if (stack == NULL)
 return NULL;
 if (stack->size == 0)
 return NULL;
 
 return stack->data[stack->size - 1];
}
 
void Pop_SeqStack(SeqStack* stack)    //  Out of the stack 
{
 if (stack == NULL)
 return;
 
 if (stack->size == 0)
 return;
 stack->data[stack->size - 1] = NULL;
 stack->size--;
}
 
int IsEmpty(SeqStack* stack)     //  Determine if it is empty 
{
 if (stack == NULL)
 return -1;
 
 if (stack->size == 0)
 return 1;
 
 return 0;
 
}
 
int Size_SeqStack(SeqStack* stack)
{
 if (stack == NULL)
 return -1;
 
 return stack->size;
}
 
void Clear_SeqStack(SeqStack* stack)
{
 if (stack == NULL)
 return;
 
 for (int i = 0; i < stack->size; i++)
 {
 stack->data[i] = NULL;
 }
 
 stack->size = 0;
}
 
void FreeSpace_SeqStack(SeqStack* stack)
{
 if (stack == NULL)
 return;
 
 free(stack);
}

Array stack tester

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "SeqStack.h"
 
typedef struct PERSON
{
 char name[64];
 int age;
}Person;
 
int main()
{
 SeqStack* stack = Init_SeqStack();  //  Create a stack 
 
 Person p1, p2, p3, p4, p5;
 strcpy(p1.name, "aaa");
 strcpy(p2.name, "bbb");
 strcpy(p3.name, "ccc");
 strcpy(p4.name, "ddd");
 strcpy(p5.name, "eee");
 
 p1.age = 10;
 p2.age = 20;
 p3.age = 30;
 p4.age = 40;
 p5.age = 50;
 
 Push_SeqStack(stack, &p1);     //  Into the stack 
 Push_SeqStack(stack, &p2);
 Push_SeqStack(stack, &p3);
 Push_SeqStack(stack, &p4);
 Push_SeqStack(stack, &p5);
 
 while (Size_SeqStack(stack) > 0)
 {
 Person* person = (Person*)Top_SeqStack(stack);
 printf("Name:%s Age:%d\n", person->name, person->age);
 Pop_SeqStack(stack);
 }
 
 //  Free memory 
 FreeSpace_SeqStack(stack);
 system("pause");
}