[boolan-c++ Study notes] second week finishing

1. For a class of type string (containing pointers)

The pointer members have the flexibility to request storage space, but the pointer operation has the risk of a memory leak, and the operation of the change pointer needs to be particularly cautious.

The point is to write Bigthree.

constructor function

{

Completion of member initialization (list);

Request to complete storage space;

}

Copy constructor

{

Copy members;

Request a new storage space and copy the contents of the Parameter object;

}

Copy Assignment function

{

Check whether to assign value to itself;

Complete copies of general members;

Delete the space of the pointer member in the current object;

According to the new object and copy the content;

}

2. Life cycle

Stack is the memory space of the scope, storing the parameter return value, etc.

Heap is a system-provided GLOBALMEM

3. New

The new keyword requested a different memory space debug (larger) and release state, but all have memory alignment requirements.

[boolan-c++ Study notes] second week finishing