It does: reading uninitialized memory, simultaneous writes from multiple threads...

		tlb on May 20, 2021 \| parent \| context \| favorite \| on: Undefined behavior in C is a reading error It does: reading uninitialized memory, simultaneous writes from multiple threads, using memory below the stack pointer with interrupts enabled, ... Some of C's UB is due to this, some of it is due to the compiler.