Before discussing memory alignment, let’s first introduce a related concept—offset.
The distance between the actual address of a storage unit and the segment address where it is located is called the intra-segment offset, also known as the “effective address or offset.”
In simple terms, in a structure, the offset refers to the difference between the address of a member in a structure variable and the address of the structure.
It seems a bit clickbaity; to be precise, there is no bool keyword in the C language standard to represent boolean types. In C++, we usually use bool variables to store logical values. However, there is no bool type in C; C only has the _Bool type. Today, when discussing this issue with someone, it can indeed be confusing, so I’m writing it down for future reference.
I have a Raspberry Pi 2B+ that has been collecting dust for quite a while. Due to frequent power outages at school, I haven’t used it for running scripts or downloads. However, recently, the SSH connection to the VPS has been dropping due to power/network issues, which has been quite frustrating. So I’ve decided to turn the Raspberry Pi into a portable compiling environment.
When a class we write does not explicitly provide a constructor but the compiler needs a constructor (be sure to note this phrase), the compiler will generate one for us. However, the default constructor generated by the compiler does not meet our expectations of what it can accomplish.
The methods for achieving inter-process/thread communication include:
From C language to C++03, the OO features feel absolutely great. Recently, I focused on the new features of C++11 and found many fantastic syntactic sugars! It’s also very enjoyable to use.
When we delete a pointer, the object it points to will be deleted. However, this does not happen when pointer objects are stored in an STL container.
Using profiler to analyze the performance of code is more efficient, detailed, and intuitive than pure cognitive analysis.
In C++, when the operand types of an operator are inconsistent, these operands will be converted to the same type. Type conversion is divided into implicit conversion and explicit conversion.
近期准备求职面试。
将C++中面向对象部分的基础知识复习整理一下。