If you want to send your data to two different destinations, you need to send it twice.

jana_hus wrote:

The task is to "send (serial) data to /dev/ttyUSB0 and pass the same data to /dev/rfcomm0 ".

In that case, the whole preceding discussion about links has been just a waste of time. You can't do that task with links. A link means a single object (file, device, directory, etc) can be accessed using multiple different names. If you create a link from /dev/ttyUSB0 to /dev/rfcomm0, then anything written to either ttyUSB0 or rfcomm0 will end up in rfcomm0. If there was a physical device associated with the name /dev/ttyUSB0 before creating the link, it will be bypassed by the new link.

There was an effort to get GCC compiler and NetBSD running on a PDP-10: PDP-10 support for GCC[^], NetBSD/pdp10[^]. There isn't much detail available about the implementation.

iconv or uconv? You can use the --list option to see the available encodings.

It's a 30+ part series on the Apollo Guidance Computer: Apollo Guidance Computer Restoration - YouTube[^], there's another as long series on the Apollo S-band radio system: Apollo S-Band Communications[^]

Wirth's law:[^] "software is getting slower more rapidly than hardware is becoming faster"

Rob Philpott wrote:

Something non-deterministic is going on. I haven’t debugged the HashSet yet to find out, but I’m presuming it’s using some random number or aspect of time somehow.

According to the docs[^], this is done to prevent HashDoS[^] attacks.

They dropped support for obsolete HTTP versions and your request isn't valid HTTP/1.1. Try:

GET / HTTP/1.1
Host: www.example.com

Maximilien wrote:

It seems weird that the compiler accept to not fully initialize the struct. They (old retired programmers) seem to expect the values to be zero-initialized.

According to cppreference.com:[^]

Quote:

All members that are not initialized explicitly are empty-initialized.

The old programmers are correct.

https://fullstackopen.com/en/[^]

The legacy API documentation is in Connector/C++ 1.1 Developer Guide[^] even if you use version 8 of the connector. Options for MySQLDriver::Connect() are explained here: https://dev.mysql.com/doc/connector-cpp/1.1/en/connector-cpp-connect-options.html[^]

Check out Heroku[^]. The free version includes max. 10000 row Postgres database.

honey the codewitch wrote:

But nobody has implemented it yet to drive an LCD display

...other than Espressif, the makers of the ESP32 chip. There's a documented API[^] and a code example[^]. They call the 8-bit parallel bus driven by I2S hardware "i80 interface".

You can get random, free to use photo JPEGs from Lorem Picsum[^]. For example, try loading https://picsum.photos/320/240 from your code.

See LinuxCommand.org.[^]

I have tried it. It's another layer of pain and difficulty.

#realJSOP wrote:

I've never done ANYTHING with regards to containers, and I don't intend to push anything to extreme limits. Which do I use? Docker, Kubernetes, or...?

Start with Docker because Kubernetes requires knowledge of Docker. Here's a free course I took to study Docker: DevOps with Docker[^]. There's one for Kubernetes as well: https://devopswithkubernetes.com/[^]

Md Mubdiul Hasan wrote:

1. Subtract AND assignment operator, what -= means ? 2. what += means ?

Assignment operators - cppreference.com[^]

Md Mubdiul Hasan wrote:

3. What does !=0 means in if structure ? 4. What double equals == means ?

Comparison operators - cppreference.com[^]

According to the VirtualBox manual:

Shared folders are supported with Windows 2000 or later, Linux, and Oracle Solaris guests

Additionally, you need to install VirtualBox Guest Additions to the guest OS. It looks like there's no chance for shared folders to work with FreeDOS.

honey the codewitch wrote:

my clock signal is *half a bit* behind my MOSI signal

Doesn't that mean you are using wrong SPI Transfer Mode[^]? Configuring a different mode doesn't need any rewrite of ESP-IDF code.