Bitmasking In Go

Thu, 17 Apr 2025 02:20:00 +0000

Bitmasking in Go

Bitmasking is one of those computer science tricks that feels like wizardry, until you realize it’s just some clever shifting and binary math. This blog explores the idea, shows how we use it in Go, and why it’s surprisingly useful when working with databases like Couchbase.

What’s Bitmasking?

A bitmask is just an integer where each bit (0 or 1) represents a flag or state. Instead of storing multiple booleans in a slice or map, you cram them into a single int. Fast to compute, fast to store, and great for indexing.

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Bitmasking In Go

Bitmasking in Go

What’s Bitmasking?