On Sunday, 22 January 2017 at 14:04:55 UTC, Suliman wrote:
So str.ptr is just shortcut?
str.ptr is the actual member. In D, pointers to structs (and an
array is virtually the same as a struct) will automatically
dereference themselves.
T* t;
t.member; // automatically rewritten into (*t).member)
Your str_ptr variable in this code is completely useless and
should be removed. It's presence only confuses you.
Ok, but how to free memory from first located value (from
`aaa`)?
Supported answer: you don't, it has infinite lifetime and you're
claiming it is immutable, but then trying to pull the memory out
from under it! The supported solution is simply to let the
garbage collector manage it.
But..
//GC.free(str_ptr.ptr); // Error: function
core.memory.GC.free (void* p) is not callable using argument
types (immutable(char)*)
If you must call the function though, you can simply `cast(void*)
str.ptr`, or use `char[]` up above instead of `string` when
declaring it, so it has a mutable pointer to begin with. Since
you are using .dup anyway, both declarations are equally legal.
