Fix Issue 6583 - cast() operation not fully specified

[Robert21721]

Added some information and examples about pointers and the casting process
https://issues.dlang.org/show_bug.cgi?id=6583

[dlang-bot]

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Bugzilla references

Auto-close	Bugzilla	Severity	Description
✓	6583	normal	cast() operation not fully specified

[ghost]

you need to reword the first commit message from "fixed ...." to "fix ...." so that the bot get triggered.

[ghost]

sorry for the last suggestion, that has not worked, the PR looks formally OK to me however.

[RazvanN7]

@Robert21721 changing the title of the PR is not going to trigger the bot. You need to add a commit (a.k.a git commit -m "Fix Issue 6583 - ...").

[RazvanN7]

This does not fully address the issue at hand. The following need to be treated for this PR to be accepted:

• casting a pointer type to a basic type
• casting a signed to an unsigned and vice-versa

As suggested in the issue, maybe these could be treated in related to what C does.

[RazvanN7]

Thanks for the new try, unfortunately, we are not quite there.

Technical prose needs to be precise, concise and neutral.

[RazvanN7]

Almost there.

[RazvanN7]

Squash the commits and we are ready to go.