C Pointers
Up until now, we have used the following kinds of pointers:
- single item pointers -
*T
- many item pointers -
[*]T
- slices -
[]T
Unlike the aforementioned pointers, C pointers cannot deal with specially
aligned data and may point to the address 0
. C pointers coerce back and forth
between integers, and also coerce to single and multi item pointers. When a C
pointer of value 0
is coerced to a non-optional pointer, this is detectable
illegal behaviour.
Outside of automatically translated C code, the usage of [*c]
is almost always
a bad idea, and should almost never be used.