On: Linear Address Spaces: Unsafe at any speed

[rkangel]

I've implemented a pools allocator for embedded devices a couple of times. Allocating memory for callers out of a block of static memory. I thought it was portable C. Which detail of the standard did I not realise I was running into?

[gpderetta → rkangel]

I assume the block of static memory was a large static char array.

My understanding that reusing the storage would violate the aliasing rules[1] and the rules against overlapping object lifetimes.

[1] while char ptrs can be used to access everything, the reverse is not allowed.