Re: Alternatives to pointers?
On Friday, 29 September 2017 at 03:37:53 UTC, Jonathan M Davis
wrote:
You could always create a wrapper struct for the pointer and
then not overload opIndex.
...alternatively, you could create a wrapper struct for the
pointer, do 'alias this' on said pointer, and then overload
opIndex to call static assert(0);. Like this:
struct Ptr(T) {
private T *_ptr;
alias _ptr this;
this(T *val) {
_ptr = val;
}
void opIndex(size_t index)() {
static assert(0);
}
}
Re: Alternatives to pointers?
On Friday, September 29, 2017 01:51:36 Jerry via Digitalmars-d wrote: > I miss ref variables, for the simple fact that using the square > brackets with a ref variable doesn't access the pointer. Don't > know how many times I've accidentially used a pointer as an > array. Not very easy to catch especially if the object has > pointers to other objects of the same type. Possibly adding > something like this, if ref variables are off the table? > > @noarray int* value; > value[x] = 10; // compile error, pointer is not an array. You could always create a wrapper struct for the pointer and then not overload opIndex. - Jonathan M Davis
Alternatives to pointers?
I miss ref variables, for the simple fact that using the square brackets with a ref variable doesn't access the pointer. Don't know how many times I've accidentially used a pointer as an array. Not very easy to catch especially if the object has pointers to other objects of the same type. Possibly adding something like this, if ref variables are off the table? @noarray int* value; value[x] = 10; // compile error, pointer is not an array.
Re: Should we add `a * b` for vectors?
On Thursday, 28 September 2017 at 01:58:24 UTC, Walter Bright wrote: ADL was always a hack to get around the wretched overloading symbol lookup behavior in C++. Any sufficiently advanced bug is indistinguishable from a feature! ;) -Wyatt
Re: Compile-time reflection and templates
On 2017-09-27 21:47, Jean-Louis Leroy wrote: I'd like to go further: find the template arguments There was a pull request that implemented this [1]. But it was closed, added to many new traits. [1] https://github.com/dlang/dmd/pull/5201 -- /Jacob Carlborg
