jcktrue.dk/content/post/bit-magic/index.md

title	subtitle	summary	authors	tags	categories	date	lastmod	featured	draft	image	projects
Bit magic in C (and C++)						2020-06-13T19:01:19+02:00	2020-06-13T19:01:19+02:00	false	true	caption focal_point preview_only false

Set a bit

// Set one bit high at position "bit" in input and store to output
output = input | (1 << bit);
// Shorthand
variable |= (1 << bit);

Clear a bit

// Clear one bit high at position "bit" in input and store to output
output = input & ~(1 << bit);
// Shorthand
variable &= ~(1 << bit);

Toggle a bit

// Clear one bit high at position "bit" in input and store to output
output = x ^ (1 << bit);
// Shorthand
variable ^= (1 << bit);