poke package:derive-storable

Write the given value to the given memory location. Alignment restrictions might apply; see peek.

Write a value to a memory location given by a base address and offset. The following equality holds:

pokeByteOff addr off x = poke (addr `plusPtr` off) x

Write a value to a memory area regarded as an array of values of the same kind. The following equality holds:

pokeElemOff addr idx x = 
poke (addr `plusPtr` (idx * sizeOf x)) x

Write the variable to a pointer.

Write the variable to a pointer.

Write the variable under the pointer, with offset.