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Articles on Trending Technologies
Technical articles with clear explanations and examples
Locate unused structures and structure-members
Structures in C are user-defined data types that group related variables together. As codebases grow, some structures and their members may become unused, leading to cluttered code and wasted memory. This article explores methods to identify and remove unused structures and structure members in C programs. Syntax struct structure_name { data_type member1; data_type member2; // ... more members }; Why Remove Unused Structures and Members? Unused structures and members can impact performance and readability of your code. Here are some reasons why ...
Read MoreHow to align images side by side with CSS?
To align images side by side, we can use the float property in CSS. With that, flex also allows us to align images. Let us understand them one by one with examples beginning with aligning images side by side with the float property. Syntax /* Using Float */ .image-container { float: left; width: value; } /* Using Flexbox */ .container { display: flex; justify-content: value; } Method 1: Align Images Side by Side With Float We can ...
Read MoreCorrupt stack problem in C, C++ program
The corrupt stack problem is a critical runtime issue in C programming that occurs when the program's stack memory becomes compromised. This can lead to unpredictable program behavior, crashes, and security vulnerabilities. Understanding stack corruption is essential for writing robust C programs. What is a Stack in C? In C, the stack is a region of memory used for automatic storage of local variables, function parameters, and return addresses. It operates on a Last-In-First-Out (LIFO) principle, where the most recently allocated memory is freed first when functions return. What is Corrupt Stack Problem? Stack corruption occurs ...
Read MoreHow to create a blurry background image with CSS?
A blurry background image creates an elegant overlay effect where content can be displayed over a softened background. This technique is commonly used for hero sections, modal overlays, and content cards to improve readability while maintaining visual appeal. Syntax selector { background-image: url("image-path"); filter: blur(value); background-size: cover; background-position: center; } Method 1: Basic Blurred Background The following example creates a blurred background image using the CSS filter property with the blur() function − ...
Read MoreC program to implement CHECKSUM
In computing, a checksum is a small-sized data value computed from a larger data set using an algorithm, with the intention that any changes made to the larger data set will result in a different checksum. Checksums are commonly used to verify the integrity of data during transmission or storage. Syntax unsigned int checksum(char *data); // Returns computed checksum value for given data Why Use CHECKSUM? There are several reasons why checksums are used − Error detection − Detect errors that occur during data transmission or storage Data integrity − Ensure data ...
Read MoreHow to create a Hero Image with CSS?
A hero image is a large, prominent image placed at the top of a webpage to grab visitors' attention. It typically includes overlay text and call-to-action buttons to engage users immediately. Syntax .hero-container { background-image: url('image-url'); height: 100vh; background-position: center; background-repeat: no-repeat; background-size: cover; position: relative; } Example The following example creates a full-screen hero image with overlay text and a call-to-action button − ...
Read Morefopen() for existing file in write mode in C
The fopen() function in C is used to open files for various operations. When opening an existing file in write mode, it's important to understand how different modes affect the file's content. Syntax FILE *fopen(const char *filename, const char *mode); fopen() for an Existing File in Write Mode When using fopen() with write mode on an existing file − 'w' mode: Creates a new file if it doesn't exist, or truncates (empties) an existing file before writing 'w+' mode: Same as 'w' but allows both reading and writing 'a' mode: Appends new ...
Read MoreHow to add a form to a full-width image with CSS?
We can easily add a form on a web page. With that, a form can also be added to an image with CSS. In this tutorial, a form will be added to a full-width image with CSS. Let us see how. Syntax .container { background-image: url("image.jpg"); background-size: cover; position: relative; } .form { position: absolute; /* positioning values */ } Set the Styles for the Web Page To begin, set the height, margin ...
Read MoreC Program to Redeclaration of global variable
In C programming, variable redeclaration refers to declaring a variable more than once in the same scope. The behavior of redeclaration varies between global and local variables, and differs between C and C++. Understanding these differences is crucial for avoiding compilation errors. Syntax // Global variable redeclaration int var; int var; // Allowed in C without initialization // Local variable redeclaration int main() { int var; int var; // Not allowed in C } Global Variable Redeclaration Without Initialization C allows ...
Read MoreHow to create a full-page background image with CSS?
Creating a full-page background image with CSS allows you to display an image that covers the entire viewport. This technique is commonly used for hero sections, landing pages, and creating immersive visual experiences. Syntax .background { background-image: url('image-url'); background-size: cover; background-position: center; background-repeat: no-repeat; height: 100vh; } Key Properties PropertyValueDescription background-sizecoverScales image to cover entire container background-positioncenterCenters the image in the container background-repeatno-repeatPrevents image from repeating height100vhSets height to full viewport ...
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