Simulate the implementation of C language – memcpy function and memmove function Article directory Simulate the implementation of C language-memcpy function and memmove function 1. memcpy function and memmove function 1.1 What is the memcpy function? 1.1 What is the memmove function? 2. Usage examples 2.1 Copy from starting position 2.2 Copy from any location […]
Tag: memcpy
memcpy and memmove
Table of Contents memcpy Function introduction: Function analysis: The length of data copied by the memcpy function Memory overlap Unable to make up the number of bytes of the element Simulate memcpy memmove Function introduction: Thinking, optimization and simulation of memory overlap simulatememove memcpy Function introduction: The memcpy function is a function for memory copy, […]
[C language memory function selection] memcpy, memset, memmove and simulation implementation! Master the art of memory manipulation!
[C language memory function selection] memcpy, memset, memmove and simulation implementation! Master the art of memory manipulation! 1. memcpy 1.1 Introduction to the use of memcpy 1.2 Simulation implementation of memcpy 2. memmove 2.1 Introduction to the use of memmove 2.2 Simulation implementation of memmove 3. memcmp 3.1 Introduction to the use of menmcmp 4. […]
Memory functions (memcpy, memmove, memcmp, memset)
This article mainly introduces the simulation implementation of some commonly used memory functions and some functions in C language. The following functions all need to include the header file: Directory 1. The memcpy function 1. Function introduction 2. Simulation implementation of memcpy Two, memmove function 1. Function introduction 2. Simulation implementation of memmove Three, memcmp […]
C language: character functions and string functions (memory operation functions memcpy, memmove, memset, memcmp+ simulation implementation) part two
Directory foreword 1. Memory operation function: memcpy Simulate the implementation of memcpy: Second, the memory operation function: memmove Simulate the implementation of memmove: Three, memory operation function: memset Simulate the implementation of memset: Fourth, the memory operation function: memcmp Simulate the implementation of memcmp: Foreword Find the length of the string: (explained in the previous […]
Memory function memcpy, memmove principle and simulation implementation
hello everyone, my name is Ale. When we come in, we mainly talk about the principles of the two memory functions memcpy and memmove, as well as the simulation implementation. I hope that you can gain something and help! I am also constantly learning and improving. If you have any questions, please leave a message […]
Memory operation functions memcpy, memmove, memcmp, memset
Memory operation function one.memcpy Function Introduction void * memcpy ( void * destination, const void * source, size_t num ); 1. Function function: copy the data of the first num bytes of the space pointed to by the source to the destination 2. Don’t care about ‘\0’, it will not stop because of ‘\0’, it […]
[C++]-vector simulation implementation (and how to use memcpy)
Author: The young sapling longs to become a towering tree Author’s Declaration: Write every blog carefully Author gitee: gitee? Author’s Column: C Language, Elementary Data Structure, Linux, C++ Dynamic Programming Algorithm If you like the author’s article, give the author some attention! Article directory foreword 1. Source code understanding 2. Simulation implementation 2.1 Member attributes […]
memchr, memset, memmove, memcpy, memcmp under the string.h file, and custom implementation of the same function
Directory One, memchr Two, memset Three, memmove Four, memcpy 5. memcmp Custom implementation: 1. memchr Two, memset 3. memmove 4. memcpy Five, memcmp One, memchr This function is used to find whether there is a certain number in the data (directly search for bytes) memchr usage: Function declaration: Parameters of the function: memchr example: int […]
Improving internal strength simulation implementation library function strlen/strncpy/strcmp/strcat/strstr/memcpy/memmove
strlen strncpy strcmp strcat strstr memcpy memmove strlen The function of the strlen function is to find the first element of the string and start to calculate the length of the string until ‘\0’, but the length of \0 will not be calculated #include<stdio.h> size_t Strlen(const char* src) { size_t count = 0; while (*src […]