在C ++中将对象添加到对象数组 [英] Add Object to Array of Objects in C++

问题描述

有一个对象数组，要向其中添加对象，我尝试以下操作:

There is an array of objects and to add object to it i tries the following:

Shape ShapeList[30];

void addShape(Shape s)
{
  for(int i=0; i<30;i++)
  {
    if(ShapeList[i] != '\0')
        { i++;}
    else
        {
            ShapeList[i]=s;
            numShapes++;
            break;
        }
   }
}

numShapes 是整数变量，Shape是类， ShapeList是对象数组.但是编译器以这种方式给出错误，不允许使用!=运算符.那么我该如何实现呢?

numShapes is an integer variable, Shape is the class and ShapeList is the array of objects. But the compiler gives an error in this way that != operator is not allowed. So how can i implement this?

推荐答案

我认为您需要更改容器"声明:

I think you need to change your 'container' declaration:

Shape *ShapeList[30];

void addShape(Shape *s)
{
  for(int i=0; i<30;i++)
  {
    if(ShapeList[i])
        { i++;}
    else
        {
            ShapeList[i]=s;
            numShapes++;
            break;
        }
   }
}

并以这种方式调用addShape:

and call addShape this way:

addShape(new Shape());

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