A practical guide to reading integer input safely, detecting invalid characters, handling overflow, enforcing ranges, and building reusable input functions in C.
Using fgets and strtol Safely in C
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Why C Pointers Matter
Pointers are the mechanism that allows C programs to refer to memory, share objects, manage resources, build dynamic structures, and communicate with operating systems and hardware.
Designing Reliable C Interfaces Around Ownership and Failure
A systems-oriented examination of how explicit ownership, bounded interfaces, error propagation, cleanup discipline, and compiler diagnostics make C programs easier to reason about.