What does this weird C program do?

#shorts
A very strange C program that adds numbers.

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Source code:

Music:

Software used:

Social media:

Inspired by Martin Mareš's Programming 1 Course exercises.

[xakkep]

the weirdest way to add two numbers I've ever seen (:

[brian.westersauce]

// evil floating point bit hack
// what the fuck???
Thank you Nemean, thank you Quake engine, thank you John Carmack

[Spacesea-kb]

Please make more vids, you're awesome