C in 100 Seconds: Unions — Shared Memory One Field at a Time | Episode 25

A union looks like a struct but all members share the same memory. Only one field is valid at a time. Set the int and it overwrites the float. The size equals the largest member. Student code: https://github.com/GoCelesteAI/c-in-100-seconds/tree/main/episode25 #c #programming #100seconds #learnc #unions #sharedmemory #sizeof #tutorial