Tag: #bitwise-operations

How do I print bits in C?

A program in C that prints the individual bits of various data types, showing how they are represented in memory. 2017-02-23

Quickly checking for a zero byte in C using bitwise operations

How to check if a 64-bit word contains a zero byte. A step-by-step example and a proof of correctness. 2017-01-24

How do I pack bits in C? (An answer using masks)

Efficient packing of game player data into 16 bits using bitwise operations on a uint16_t type. 2017-01-02

How do I print bytes in C?

Useful to show how C represents various data types. 2016-12-22

How can I do modulo with a bitmask in C?

Use i & (n-1) to compute i % n, when n is a power of two. This avoids the modulo operation. 2016-12-10

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