Choosing a Type‑Generic abs Implementation in C11 with _Generic Macros
Guide to choosing a type‑generic abs implementation in C11 using _Generic macros and inline functions, with trade‑offs, sample code, and verification steps.
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Guide to choosing a type‑generic abs implementation in C11 using _Generic macros and inline functions, with trade‑offs, sample code, and verification steps.
C11's _Generic keyword lets you write a single macro that expands to the correct float, double or long double math function, eliminating duplicated code.
Use C11 _Generic to create a zero‑overhead abs macro that selects the correct library function for int, long, float, and double arguments.
Learn how C11’s _Generic keyword lets you write a single type‑generic macro—illustrated with an abs() example—and understand its trade‑offs and verification steps.