Table of Contents
Program
输出
Home Backend Development C++ In C language, what is the difference between memcmp and memicmp functions?

In C language, what is the difference between memcmp and memicmp functions?

Sep 12, 2023 pm 12:57 PM
Comparison functions in c language: memcmp and memicmp

In C language, what is the difference between memcmp and memicmp functions?

Memcmp() and memicmp() compares first n bytes of two blocks of memory.

  • memcmp() performs comparison as unsigned characters.

  • memicmp() performs comparison as characters but, ignore upper case or lower case letters.

  • Both functions return an integer value.

  • Two memory buffers are equal (returns 0).

  • First buffer is greater than second (returns >0).

  • First buffer is less than second(returns

Program

The following program shows the usage of memcmp() and memicmp() functions.

#include<conio.h>
#include<mem.h>
main(){
   char st1[]="This is C Programming language";
   char st2[]="this is c programming";
   int result;
   result=memcmp(st1,st2,strlen(st2));
   printf("</p><p>1. result after comparing buffer using memcmp");
   check(result);
   result=memicmp(st1,st2,strlen(st2));
   printf("</p><p>2. result after comparing buffer using memicmp");
   check(result);
}
check(int x){
   if(x==0)
      printf(" buffer st1 and st2 hold same data</p><p>");
   if(x>0)
      printf("buffer st1 is bigger than buffer st2</p><p>");
   if(x<0)
      printf(&ldquo; buffer st1 is less than buffer st2</p><p>");
}
Copy after login

输出

你将看到以下输出 −

1. result after comparing buffer using memcmp buffer st1 is less than buffer st2
2. result after comparing buffer using memicmp buffer st1 and st2 hold same data
Copy after login

The above is the detailed content of In C language, what is the difference between memcmp and memicmp functions?. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

What are the types of values ​​returned by c language functions? What determines the return value? What are the types of values ​​returned by c language functions? What determines the return value? Mar 03, 2025 pm 05:52 PM

This article details C function return types, encompassing basic (int, float, char, etc.), derived (arrays, pointers, structs), and void types. The compiler determines the return type via the function declaration and the return statement, enforcing

Gulc: C library built from scratch Gulc: C library built from scratch Mar 03, 2025 pm 05:46 PM

Gulc is a high-performance C library prioritizing minimal overhead, aggressive inlining, and compiler optimization. Ideal for performance-critical applications like high-frequency trading and embedded systems, its design emphasizes simplicity, modul

C language function format letter case conversion steps C language function format letter case conversion steps Mar 03, 2025 pm 05:53 PM

This article details C functions for string case conversion. It explains using toupper() and tolower() from ctype.h, iterating through strings, and handling null terminators. Common pitfalls like forgetting ctype.h and modifying string literals are

What are the definitions and calling rules of c language functions and what are the What are the definitions and calling rules of c language functions and what are the Mar 03, 2025 pm 05:53 PM

This article explains C function declaration vs. definition, argument passing (by value and by pointer), return values, and common pitfalls like memory leaks and type mismatches. It emphasizes the importance of declarations for modularity and provi

Where is the return value of the c language function stored in memory? Where is the return value of the c language function stored in memory? Mar 03, 2025 pm 05:51 PM

This article examines C function return value storage. Small return values are typically stored in registers for speed; larger values may use pointers to memory (stack or heap), impacting lifetime and requiring manual memory management. Directly acc

distinct usage and phrase sharing distinct usage and phrase sharing Mar 03, 2025 pm 05:51 PM

This article analyzes the multifaceted uses of the adjective "distinct," exploring its grammatical functions, common phrases (e.g., "distinct from," "distinctly different"), and nuanced application in formal vs. informal

How do I use algorithms from the STL (sort, find, transform, etc.) efficiently? How do I use algorithms from the STL (sort, find, transform, etc.) efficiently? Mar 12, 2025 pm 04:52 PM

This article details efficient STL algorithm usage in C . It emphasizes data structure choice (vectors vs. lists), algorithm complexity analysis (e.g., std::sort vs. std::partial_sort), iterator usage, and parallel execution. Common pitfalls like

How does the C   Standard Template Library (STL) work? How does the C Standard Template Library (STL) work? Mar 12, 2025 pm 04:50 PM

This article explains the C Standard Template Library (STL), focusing on its core components: containers, iterators, algorithms, and functors. It details how these interact to enable generic programming, improving code efficiency and readability t

See all articles