error c2146_error c2059_error c2018

error c2146error c2146

为什么会出现error C2146:

#include<stdio.h>

#include<stdlib.h>

template <typename ElemType>

class SqStack

{

public:

void clear();

int getLength();

int getstackSize();

Status getTop(ElemType& e);

bool isEmpty();

SqStack<ElemType>operator=(SqStack<ElemType>rightS);

Status pop(ElemType& e);

void push (ElemType& e);

SqStack();

virtual ~SqStack();

SqStack(const SqStack<ElemType>& otherS);

protected:

ElemType *base;

ElemType *top;

intstackSize;

};

template <typename ElemType>

void SqStack<ElemType>::clear()

{

base=top;

}

template <typename ElemType>

int SqStack<ElemType>::getLength()

{

return top-base;

}

template <typename ElemType>

int SqStack<ElemType>::getstackSize()

{

return SqStackSize;

}

template <typename ElemType>

Status SqStack<ElemType>::getTop(ElemType& e)

{

if(isEmpty())

return ERROR;

else

e=*(top-1);

return OK;

}

template <typename ElemType>

bool SqStack<ElemType>::isEmpty()

{

return (top==base true:false);

}

template <typename ElemType>

SqStack<ElemType>SqStack<ElemType>::operator =(SqStack rightS)

{

int length=rights.getLength();

if(this!=&rightS)

{

if(stackSize<rightS.stackSize)

{

delect[] base;

base=new ElemType[right.stackSize];

assert(base!=0);

stackSize=rightS.stackSize;

}

for(int i=0;i<length;i++)

*(base+1)=*(rightS.base+i)

top=base+length();

}

return *this;

}

template <typename ElemType>

Status SqStack<ElemType>::pop(ElemType& e)

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