This creates a Z-major continuous buffer, whereas the original data is X-major.

Common code between vectors and strings.

Reallocate `new_size` bytes of memory, replacing the old region of size `old_size` at `p`. In contrast to a normal realloc, this grows downwards, and

Relinquish the pointer to the caller.

FIXME: This is not generic, here because of IQM.

Obtains the absolute path from any other path. Returns the input path if the absolute path couldn't be resolved.

You MUST emit an init exp after calling this, e.g. EmitI32Const(0); EmitEnd();

This makes one time step, retaining the current value. It increases the counter, i.e. 2 -> 3 or -1 -> -2, indicating the amount of steps it has been t

These functions allow for a null allocator to mean use the default allocator, as used by DetachedBuffer and vector_downward below. This is to avoid ha

Previous state. This gives accurate history for the "still true/false" values, but for "became true/false" it assumes the history is "still false/true