Choose to use memcpy_s，strcpy_s or strcpy, memcpy? Usage of memset()
memcpy_s，strcpy_ The s function explicitly specifies the size of the target memory, which can clearly expose the problem of memory overflow, while ordinary strcpy and memcpy will not.
In order to ensure sufficient space for memory copy and prevent clerical errors, [try to ...
Posted by buckit on Thu, 03 Mar 2022 21:25:51 +0100
Add a Contact
The functions to be realized in the system are as follows:
Add contact: contact information includes (name, gender, age, co ...
Posted by habanero25 on Thu, 03 Mar 2022 16:40:53 +0100
The final statistical scores of data structure courses offered in university classrooms are generally composed of "offline homework, offline experimental report, machine test and final theoretical examination". The theoretical knowledge of data structure and corresponding experimental reports have been shared with you before. For deta ...
Posted by nineseveninteractive on Thu, 03 Mar 2022 14:16:42 +0100
I've been reviewing the operating system recently, and I have the following knowledge points:
1) Process scheduling algorithm: it adopts os scheduling algorithm (i.e. assigning the processor to the process with the highest priority) and first come first serve algorithm. 2) Each process is represented by a process control block (PCB). The proce ...
Posted by unmash on Thu, 03 Mar 2022 06:42:47 +0100
The previous blog has introduced the syntax of classes and objects, but it also has some piecemeal syntax details. Next, let's see what else we should pay attention to~
Constructor body assignment
Members that can only be initialized in the initializat ...
Posted by Seamless on Thu, 03 Mar 2022 06:21:07 +0100
1 what is LRU cache
LRU (Least Recently Used) algorithm is an elimination strategy. In short, the implementation is as follows: put some elements into a container with fixed capacity for access. Due to the limited capacity of the container, the container should ensure that the elements that have been used recently are always in the contain ...
Posted by lpxxfaintxx on Thu, 03 Mar 2022 04:51:19 +0100
Project introduction and cryptography knowledge
Overall structure of the project:
Main function: encrypt and decrypt the data of network communication
Data serialization: protobufsocket communication: thread pool, connection poolShared memory IPCoracle Database: using OCI interfaceData encryption: openssl (Secure Sockets ...
Posted by gwolgamott on Wed, 02 Mar 2022 16:21:15 +0100
Class lock_guard is a mutex wrapper that provides a convenient RAII style mechanism for occupying mutexes during scope blocks. Create lock_ When the guard object, it attempts to receive ownership of the given mutex. Control leave create lock_ Destroy lock when the scope of the guard object_ Guard and release mutex. lock_ The guard c ...
Posted by bqheath on Wed, 02 Mar 2022 16:16:04 +0100
1. Definition of string
2. Access of contents in string
3. Analysis of common function examples of string
In C language, the character array char str  is generally used to store strings, but sometimes it is troublesome to use string array. String type is added to C + +.
Note that if you want to use string, you need to add a ...
Posted by stageguys on Wed, 02 Mar 2022 13:53:52 +0100
College students are too boring at home during winter vacation. Sort out the knowledge they have learned before and review it by the way. The level is low and the professionalism is poor. It's only for reference. Don't spray it if you don't like it (no one sees it anyway). It's almost unsealed. Wuwuwuwuwuwuwuwuwuwuwuwuwuwuwuwuwuwuwuwuwuwuwuwuwu ...
Posted by mydimension on Wed, 02 Mar 2022 12:52:42 +0100