Detailed Explanation and Examples of Input and Output Stream Operations in C Language In C language, input and output (I/O) is the primary way for programs to interact with the external environment. Through the standard input-output library <span><stdio.h></span>, we can easily read and write data. This article will provide a detailed introduction to input and … Read more
01 The ASCII value of the digit character ‘0’ is 48. Given the following program: main() { char a=’1′,b=’2′; printf(“%c,”,b++); printf(“%d\n”,b-a); } The output of the program is: A) 3,2 B) 25,2 C) 2,2 D) 2,25 Answer: C Explanation: printf(“%c, b++): The initial value of b is ‘2’ (ASCII value 50); b++ is a post-increment, … Read more
01 Read the following program: void swap(char *x, char *y) { char t; t=*x; *x=*y; *y=t; } main() { char *s1=”abc”, *s2=”123″; swap(s1,s2); printf(“%s,%s\n”,s1,s2); } The output of the program is A) 123,abc B) abc,123 C) 1bc,a23 D) 321,cba Answer: C Analysis: The function swap works as follows: t = *x; saves the character pointed … Read more
01 Observe the following statement: char str1[10], str2[10] = {“books”}; The correct statement that can assign the string “books” to the array str1 is A) str1 = {“Books”}; B) strcpy(str1, str2); C) str1 = str2; D) strcpy(str2, str1); Answer: B Explanation: For option A: Correct, using the standard library function to copy the string. For … Read more
The C language is a powerful programming language widely used in system software and game development. Although modern games typically use higher-level languages and engines, C remains the foundation for many low-level graphics and logic implementations. In this article, we will explore how to use C for simple game development, including basic graphics rendering and … Read more
Analysis of the Applications and Advantages of C Language in System Programming The C language is a general-purpose programming language widely used in the field of system programming. Its design intention is to provide an efficient, flexible, and hardware-near programming method, allowing programmers to directly manipulate computer hardware resources. This article will detail the applications … Read more
Comprehensive Analysis of String Handling Functions in C Language In C language, strings are stored as arrays of characters and are terminated with a null character <span>'\0'</span>. The C standard library provides a series of functions to handle strings, which are defined in the header file <span><string.h></span>. This article will detail commonly used string handling … Read more
In practical development, one often encounters the following question: #include "imx6ul.h" Clearly, this header file is not in the directory of the current <span>.c</span> file, yet the compilation passes smoothly. Why is this? This article will explain the header file search rules in C language for <span>#include</span>. 📌 1. Two Forms of <span>#include</span> <span>#include "filename"</span> … Read more
Follow usLearn Embedded Together, learn and grow together In C language, <span>void*</span> is a special pointer type known as “generic pointer” or “untyped pointer”. Unlike regular pointers, void pointers are not associated with any specific data type, which gives them unique flexibility and a wide range of applications. Core Advantages 1. Strong Generality, Can Point … Read more
Follow and star our public account for exciting content Today, I would like to share 10 amazing open source C language projects, hoping these resources will be helpful to everyone! 01 Webbench Webbench is a very simple website stress testing tool used on Linux. It uses fork() to simulate multiple clients accessing the specified URL … Read more