Programmer Think

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 ...

catalogue system requirements Algorithm description Function menu Exit function Add a Contact Show contacts Delete Contact find contact Modify contact Empty contacts Full code: system requirements The functions to be realized in the system are as follows: Add contact: contact information includes (name, gender, age, co ...

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 ...

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 ...

                                      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~ catalogue On constructor Constructor body assignment Initialization list Members that can only be initialized in the initializat ...

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 ...

Project introduction and cryptography knowledge Overall structure of the project: Main function: encrypt and decrypt the data of network communication Basic components: Data serialization: protobufsocket communication: thread pool, connection poolShared memory IPCoracle Database: using OCI interfaceData encryption: openssl (Secure Sockets ...

lock_guard 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 ...

catalogue 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 ...

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 ...