On Friday, 3 May 2024 at 13:18:02 UTC, user1234 wrote:
On Friday, 3 May 2024 at 10:50:03 UTC, BoQsc wrote:
Why am I forced to visit this D Lang thread, why this
deprecation warning still appears in my console window in the
latest version of DMD. Does not make any sense from the
developer's perspective to show this warning and pollute the
already polluted logging entries of the compiler. How am I
suppose to program anything effectively if half of the screen
are some nonsensical deprecation warnings without guidance or
sane explanations.
This is not better
```
foreach (i, row; arr)
```
than
```
foreach (int i, row; arr)
```
Hides the datatype and makes the D language appear in-explicit
and annoying.
What is this language becoming. A completely weak typed
language or something?
I would use JavaScript if I would want that. How are we
suppose to make whole sane Operating Systems with such
syntaxes. Do everyone just enjoy having bugs with some
implicit size_t, or do everyone just enjoy deprecation
warnings in their logging systems when there are way more
important problems to solve, that are actually project related.
**You can specify the index type, just choose the right one.**
For now there's a deprecation message but after some while
you'll get a proper error message, e.g _"index type for arr
must be of type T because arr.length type is T"_.
What's is happening now is to help people updating their code
and prevent abrupt breakages.
So how would you update this example, what is the right index
type here to choose?
```
import std.stdio : writefln;
void main() {
auto arr = [
[5, 15], // 20
[2, 3, 2, 3], // 10
[3, 6, 2, 9], // 20
];
foreach (i, row; arr)
{
double total = 0.0;
foreach (e; row)
total += e;
auto avg = total / row.length;
writefln("AVG [row=%d]: %.2f", i, avg);
}
}
```
Example taken from https://tour.dlang.org/tour/en/basics/foreach
