After discussing duration classes yesterday, today we will learn about date intervals in Boost. In Boost, boost::gregorian::date_period represents a left-closed, right-open interval on the timeline, with its two endpoints being date objects. A detailed introduction is shown in the image below: Next, let’s take a look at its source code. First, we found its definition … Read more
Binn: A Lightweight, High-Performance Data Serialization Library Binn is an efficient data serialization library developed by the LiteServer team, suitable for C and C++ languages. It aims to provide a simple, fast, and memory-efficient way to store and transmit data structures such as dictionaries, lists, integers, floating-point numbers, strings, etc., serving as a lightweight alternative … Read more
1. File Read/Write C++ provides two main methods for file read/write operations: the C-style FILE* method and the C++ stream-based fstream method. 1) FILE File Pointer <span>FILE</span> is a structure type defined in <stdio.h>, which includes information such as file descriptor, buffer information, current read/write position, and error and end-of-file flags. Common Modes: <span>"r"</span> – … Read more
First Interview 1. Interviewer Self-Introduction 2. Self-Introduction Reference Answer 30–60 seconds “four-part format”: Background → Tech Stack → Representative Projects → Quantified Results; 3. Memory Layout of Classes Reference Answer No virtual functions: Object = Order of data members + Alignment padding; when containing a base class, the “base class sub-object” is at the front. … Read more
From WeChat Official Account: Programmer Cat In my first year of writing C++, I thought “as long as it runs, it’s fine”; by the third year, I started to emphasize “encapsulation, inheritance, and polymorphism”; it wasn’t until the tenth year that I realized: designing a good class and module is far more challenging than just … Read more
1. Overview and Core Features <span>std::shared_ptr</span> is a smart pointer introduced in the C++11 standard library that implements the concept of shared ownership and automatically manages dynamically allocated memory resources through a reference counting mechanism. Compared to traditional raw pointers, <span>shared_ptr</span> significantly reduces the risks of memory leaks and dangling pointers, making it an indispensable … Read more
1. Overview of Trees Trees are a type of <span>non-linear</span> data structure consisting of a <span>set</span> of n (n ≥ 0) finite nodes. This <span>data set</span> effectively describes the branching and hierarchical characteristics of data. Trees in real life Abstract representation of trees Trees in data structures 1. Characteristics of Trees Tree structures are widely … Read more
Content from: Programmer Lao Liao https://www.bilibili.com/video/BV1s5WVz9EwN/ Chapter 1: Singleton Pattern (C++) The description of the Singleton pattern is: Ensure that a class has only one instance and provide a global access point to that instance. The most important characteristic of the Singleton pattern is: A class can have at most one object. Intent: Ensure that … Read more
Click the blueFollow usC++ Basics 010 – Loop ControlLoop Control: continue/break In C++,<span><span>continue</span></span> and <span><span>break</span></span> are two keywords used to control the execution of loops. They are used in the loop body to change the flow of execution. 01 break: Directly “exit the current loop” ✦Function When encountering break in a loop (for, while, do-while), … Read more
Feiyu BLOG 2023.3.31 Information Technology Education Python Curriculum Teaching Research Topics Academic Level Examination Python Program Design C++ Informatics …… 1. cout Output Statement The cout output statement is a common output statement in C++ language, consisting of two parts: cout and the output operator “<<“ Format of cout statement: cout<<expression<<…… Function: Outputs the value … Read more