On Thursday, 22 July 2021 at 18:56:43 UTC, Steven Schveighoffer
wrote:
On 7/22/21 2:38 PM, apz28 wrote:
On Wednesday, 21 July 2021 at 20:39:54 UTC, Dukc wrote:
On Wednesday, 21 July 2021 at 14:15:51 UTC, Steven
Schveighoffer wrote:
2. It's hard for me to see where the null dereference would
be in that function (the `bool` implementation is pretty
simple).
DMD complains about dereferences in three different lines. I
suspect it's `this` reference that is `null`.
Look like DMD has some bug. If I changed this line
https://github.com/apz28/dlang/blob/02989b94bfe306d723f2780e010c61f71f873cbe/source/pham/db/db_fbdatabase.d#L148
from: auto reader = FbXdrReader(null, response.data);
to: auto reader = FbXdrReader(fbConnection, response.data);
then the error go away. FbXdrReader constructor allows to
accept null for that parameter. Is it "safe" means not allow
to pass null?
I don't know what an FbConnection is, but it looks like you
call something on it. Your code is immense, and github search
really *really* sucks. So I can't get better information. But
if it's a class, and that is a normal member, it is indeed
dereferencing a null pointer.
-Steve
FbConnection is a class, FbXdrReader is a struct and for this
call, response.data is not null & its' length will be greater
than zero and FbConnection is not being used. So why DMD try to
evaluate at compiled time hence error
1. Should not evaluate at compile time for this function
call/construct
2. The error message is missing proper line # or nothing related
to the module displayed in error message
https://github.com/apz28/dlang/blob/main/source/pham/db/db_fbbuffer.d#L527
