用vc++6.0写的程序，看看还有什么错的

写出来运行出错，改不对，大家帮忙看看
#include<stdio.h>
#include<stdbool.h>
#include<stdlib.h>
 
#define Stack_Size 50
 
typedef int StackElemType;
 
typedef struct
{     
        StackElementType elem[Stack_Size];
        int top;
}SeqStack;
 
void InitStack(SeqStack *S)
{     
        S->top=-1;
}
 
int PushEmpty(SeqStack *S)
{
        if(S->top==-1)
                 return true;
        else
                 return false;
}
 
int Push(SeqStack * S,StackElementType x)
{     
        if(S->top==Stack_Size-1) return(FALSE);
        S->top ++;
        S->elem[S->top ]=x;
        return [TRUE];
}
 
int Pop(SeqStack * S,StackElementType *x)
{     
        if(S->top==-1)
                 return [FLASE];
        else
        {
                 *x=S->elem[S->top];
                 S->top--;
                 return(TRUE);
        }
}
 
int main(void)
{
        SeqStack s=(SeqStack *)malloc(sizeof(SeqStack)*Stack_Size);
        int m,x;
        InitStack(s);
        Push(s,3);
        Push(s,9);
        Push(s,17);
        Pop(s,x);
        m=PushEmpty(s);
        printf("%d\n",m);
    free(s);
}

SeqStack *s=(SeqStack *)malloc(sizeof(SeqStack) * Stack_Size);