Estela‭

Is it correct to destroy a mutex which is referenced but not owned by an unique_lock as in this code? { std::unique_ptr<std::mutex> mutex = std::make_unique<std::mutex>(); std::u...

1 answer  ·  posted 2y ago by Estela‭  ·  last activity 2y ago by Angew‭

I have a post where I mention a script named dead.sh Ok... now I have two posts like that. But that is not a website. It is a filename, and not one reachable through an URL. How can I inhibit aut...

1 answer  ·  posted 2y ago by Estela‭  ·  last activity 2y ago by Moshi‭

Consider an object for which a method is invoked. Beyond certain point the method no longer accesses this at all. No read/writes of non-static members. No invocation of non-static methods. Is it ...

1 answer  ·  posted 2y ago by Estela‭  ·  last activity 2y ago by Hyperlynx‭

I find myself often writing code like this. try { // code } catch( FailedReadException const & ex) { file.close(); std::cerr << "Read failure " << ex.readFailure() <&...

2 answers  ·  posted 2y ago by Estela‭  ·  edited 2y ago by Ayxan Haqverdili‭

On 25th October 2020 in Europe/Berlin clocks where set back from 03:00 AM to 02:00 AM to change from summer time (CEDT) to winter time (CET). Which means there is a 1 hour separation between 02:30...

1 answer  ·  posted 2y ago by Estela‭  ·  last activity 2y ago by hkotsubo‭

Yes, it is safe unless the variable is volatile. The term used in the C99 standard for the value of an "uninitialized" variable is indeterminate. From C99 standard: Section 6.2.4 Storage duratio...

posted 9mo ago by Estela‭  ·  edited 9mo ago by Ethan‭

Let's consider the following git graph. The initial commit is 1. The colors identify the authors of each commit. Orange has left the project. Green, Blue and Pink are still active. cha...

posted 2y ago by Estela‭  ·  edited 2y ago by Estela‭

For debugging running programs I often use whatever is integrated with the IDE I am using. QtDeveloper right now, but also used Eclipse, Netbeans and others. Most of them just use gdb under the hoo...

0 answers  ·  posted 2y ago by Estela‭  ·  edited 2y ago by Estela‭

In order to test that coredumps are generated and that they contain useful information which can be retreived with gdb I need to generate a SIGSEGV. Or anything else which causes a coredump. The co...

1 answer  ·  posted 3y ago by Estela‭  ·  last activity 3y ago by Lundin‭

Is there any guarantee regarding initialization of static and thread_local objects? In example, is there any guarantee about the value printed by the following program? #include<iostream> s...

1 answer  ·  posted 2y ago by Estela‭  ·  edited 2y ago by Alexei‭

I prefer the current way. Regarding tooltips Experience shows that tooltips can survive a lot of time being obsolete. In SO in meta they have "This answer is useful" and "This answer is not usefu...

posted 2y ago by Estela‭  ·  edited 2y ago by Estela‭

I have not managed to make an answer with standard SQL. I've had to resort to using arrays. And I don't have a Microsoft SQL Server RDBMS at hand. So I've done it instead in PostgreSQL. You'll just...

posted 2y ago by Estela‭  ·  edited 2y ago by Estela‭

The documentation for requests.RequestException requests.exceptions This module contains the set of Requests' exceptions. from urllib3.exceptions import HTTPError as BaseHTTPError class...

posted 2y ago by Estela‭  ·  edited 2y ago by Estela‭

I have to debug an error which seems to only happen with some set of data present in our PostgreSQL database. I'd like to copy said database to my local machine so I can perform tests without affe...

1 answer  ·  posted 2y ago by Estela‭  ·  edited 2y ago by Alexei‭

On the server I dumped to a file using these commands user@server:~$ sudo -i -u postgres postgres@server:~$ pg_dump databasename > dumpfile Then I copied dumpfile to my machine and executed...

posted 2y ago by Estela‭  ·  edited 2y ago by Estela‭