Programmer Group

Timer module overview    sylar implements the timer function based on epoll. Because the accuracy of epoll is milliseconds, the accuracy of its timer is also milliseconds. The timer has the design based on time wheel and time heap. In sylar, it adopts the design of minimum heap. For the specific explanation of timer, please refer ...

Audio and video interception based on FFMPEG (C++Qt version) This blog is based on the previous blog: https://blog.csdn.net/liyuanbhu/article/details/121744275 The last blog realized the file encapsulation conversion. We add a little more function on this basis. The implementation can arbitrarily intercept audio and video within a period of ...

c + + compiling mode under linux         Under win, visual studio has carried out a large number of encapsulation for us, and designed a large number of easy-to-use configurations and interfaces, so that developers pay too much attention to the underlying compilation and linking process, and only need to pay attention to t ...

unique_ptr is one of the smart pointers provided by C++ 11 to prevent memory leakage. It is a smart pointer that exclusively enjoys the ownership of the managed object pointer. unique_ The PTR object wraps a raw pointer and is responsible for its life cycle. When the object is destroyed, the associated original pointer is deleted in its destruc ...

Author: Ming Xue Candleid: fuxuemingzhuPersonal blog: http://fuxuemingzhu.cn/Public number: snowy candlesKey words in this article: Leetcode, buckle, brush title, Python, C++, chain list, intermediate node, delete Title Address: https://leetcode-cn.com/problems/delete-the-middle-node-of-a-linked-list/ Title Description Give you the he ...

Virtual functions and virtual function tables Virtual function: a member function decorated with virtualImpact of virtual function on class: add a pointer, 32-bit 4 bytes, 64 bit 8 bytesVirtual function table: a pointer that stores the first addresses of all virtual functions Virtual functions and polymorphisms Polymorphism: different results ...

background The new feature of C++ 11 is object movement. Objects can be moved instead of copied. In some cases, objects are destroyed immediately after being copied, such as value passing parameters, objects are returned by value passing, and temporary objects construct another object. In these cases, using moving objects instead of copying ob ...

L2 - Fundamentals of data structures - Lesson 07 - Dynamic Arrays Original gourd teacher Yunfan youpei 2020-12-19 13:34 L2 - Fundamentals of data structures - Lesson 07 - Dynamic Arrays Variable length array cin >> n; int a[n]; Strictly speaking, the above code is not supported by c + + standard, although most compilers can compile it ...

Source Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list. Example Given 1->2->3->3->4->4->5, return 1->2->5. Given 1->1->1->2->3, return 2->3. Problem solution The previous topic is to retain one of the duplicate value nodes. D ...

TIANTI book reading room, please write a simple book borrowing statistics program. When readers borrow books, the administrator enters the book number and presses the S key, and the program starts timing; When the reader returns the book, the administrator enters the book number and presses the E key, and the program ends the timing. The book n ...