c

Why Both return and exit() Work in main()

Why Both return and exit() Work in main()

In C programming, there are two ways to terminate a program from the main function: using return and using exit(). int main() { printf("Hello, World!"); return 0; // Method 1: Normal termination } int main() { printf("Hello, World!"); exit(0); // Method 2:Normal termination } Enter fullscreen mode Exit fullscreen mode Why can both methods terminate the program correctly, even though they appear completely different?In this article, we'll unravel this mystery by understanding how C programs actually start and terminate.Note that this article focuses on the implementation in GNU/Linux environments, specifically using glibc. First, let's examine how the exit function works…
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Representing and Manipulating Information in modern computer – Part 1

Representing and Manipulating Information in modern computer – Part 1

As most of you might already know computer can only understand, store and process on a bit(0 and 1). But why?Well it turns out, two-valued signals can readily be represented, stored, and transmitted easily and more reliably than traditional base 10 number representation — for example, as the presence or absence of a hole in a punched card, as a high or low voltage on a wire, or as a magnetic domain oriented clockwise or counterclockwise, etc. Morever, a single bit is usually not very helpful in representing anything meaningful in computer but once we combine a sequence of bits,…
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Survey: C to Rust conversion and corresponding tools

Survey: C to Rust conversion and corresponding tools

Hello all, We are performing an anonymous survey to understand developers' perspectives on C to Rust conversion and corresponding tools. You can take the survey at: Survey Link The survey will be taken once and will take approximately 7 minutes to complete. No personal identifying information will be collected. The information you will share with us if you participate in this study will be kept completely confidential to the full extent of the law. The study is reviewed by our IRB under: IRB 2024-1170. If you have any questions about this research, please contact Aravind Machiry at amachiry@purdue.edu. If you…
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