On Thursday, 18 January 2018 at 16:26:54 UTC, Luís Marques wrote:
The actual function bar also receives by ref its pointer.
you might be better off receiving a pointer-to-pointer instead of
ref. Then it will be encoded in the type and thus you can cast
outer layers too and use intermediate mo
On Thursday, 18 January 2018 at 16:14:18 UTC, ag0aep6g wrote:
On 01/18/2018 04:25 PM, Luís Marques wrote:
You need a reinterpret-style cast here to get an lvalue:
foo(* cast(int**) &ptr);
Right, that's what I wanted. Ugh, for some reason I was totally
confused about this :-)
w
On Thursday, 18 January 2018 at 16:20:35 UTC, Steven
Schveighoffer wrote:
Note, this, to me, seems odd. Of course this is not the full
case, but you are not affecting anything except for the value
of the local `ptr`. So I would be concerned this may not be
what you want (if you are looking to a
On Thursday, 18 January 2018 at 16:08:32 UTC, Adam D. Ruppe wrote:
Simply define an intermediate.
int* tmp = cast(int*) that_void_pointer;
foo(tmp);
In my actual case bar also receives its pointer by ref, so you
would have to do something like:
int* tmp = cast(int*) that_void_pointer;
foo(t
On 1/18/18 10:25 AM, Luís Marques wrote:
This works, obviously (i.e. it prints 42):
void foo(ref int* a)
{
static int j = 42;
a = &j;
}
void bar(int* ptr)
{
foo(ptr);
writeln(*ptr);
}
Note, this, to me, seems odd. Of course thi
On 01/18/2018 04:25 PM, Luís Marques wrote:
This works, obviously (i.e. it prints 42):
void foo(ref int* a)
{
static int j = 42;
a = &j;
}
void bar(int* ptr)
{
foo(ptr);
writeln(*ptr);
}
void main()
{
int i =
On Thursday, 18 January 2018 at 15:25:38 UTC, Luís Marques wrote:
I think the underlying idea is sound (use ptr as an lvalue, but
with int* type), but since you can't cast(ref int*), I don't
know how to express it in D code.
Simply define an intermediate.
int* tmp = cast(int*) that_void_point
This works, obviously (i.e. it prints 42):
void foo(ref int* a)
{
static int j = 42;
a = &j;
}
void bar(int* ptr)
{
foo(ptr);
writeln(*ptr);
}
void main()
{
int i = 7;
bar(&i);
}
Unfortunately, if bar for some
