andreyv

8 miesięcy temudiscuss

Follow this forum: https://forum.sailfishos.org/c/announcements/17.

w zeszłym rokudiscuss

Autoconf can use cache files [1], which can greatly speed up repeated configures. With cache, a test is run at most once.

[1] https://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/a...

andreyv

w zeszłym rokudiscuss

Here is a non-zero null pointer: https://gcc.godbolt.org/z/Po5r5Pa36

andreyv

2 lata temudiscuss

It creates a compound literal [1] of type array of int, and initializes the specified array positions using designated initializers [2] with the results of calls to puts().

Using designated initializers without the = symbol is an obsolete extension.

[1] https://gcc.gnu.org/onlinedocs/gcc/Compound-Literals.html [2] https://gcc.gnu.org/onlinedocs/gcc/Designated-Inits.html

andreyv

2 lata temudiscuss

Even the original version 1507 is still supported on the LTSC channel. Support for UTF-8 manifest was added only in version 1903.

andreyv

2 lata temudiscuss

Old does not mean bad. Even a decade later Wayland struggles to provide basic features that were built in the X protocol.

andreyv

3 lata temudiscuss

The number of registers available to the program is fixed in the instruction set. The program cannot address more registers without recompiling it to an extended instruction set.

andreyv

3 lata temudiscuss

First person shooters. Vertical synchronization causes a noticeable output delay.

For example, with a 60 Hz display and vsync, game actions might be shown up to 16 ms later than without vsync, which is ages in FPS.

andreyv

3 lata temudiscuss

The Soviet Union briefly tried 5 and 6 day weeks in the 1930s: https://en.wikipedia.org/wiki/Soviet_calendar

andreyv

3 lata temudiscuss

You can use systemd-cron [1] to run traditional cron jobs with systemd. No need for a separate daemon anymore.

[1] https://github.com/systemd-cron/systemd-cron

andreyv

3 lata temudiscuss

Instead of "/usr/bin/time" you can also write "command time".

andreyv

3 lata temudiscuss

1% is still a lot for power saving. If the system is idle, it should be at 0%. If it is anything above, then it shows poor design.

andreyv

4 lata temudiscuss

See: https://en.wikipedia.org/wiki/Lagrange_polynomial

andreyv

4 lata temudiscuss

Right — ferror() does not set errno, and so perror() is not appropriate here. fprintf(stderr, ...) would be better.

andreyv

4 lata temudiscuss

In C, and many other languages, the file stream error state is saved after each operation, so you can skip error checking on every output line and only do

  if (fflush(stdout) != 0 || ferror(stdout) != 0)
  {
    perror("stdout");
    return EXIT_FAILURE;
  }

at the end of the program. The same should be done for stderr as well.

In GNU programs you can use atexit(close_stdout) to do this automatically.

andreyv

4 lata temudiscuss

Perhaps this: https://docs.microsoft.com/en-us/windows-hardware/design/dev...

> On occasion, the system stays in the active mode (with the screen off) for a longer interval of time. These longer active intervals occur for a variety of reasons, for example, processing incoming email or downloading critical Windows updates.

andreyv

5 lat temudiscuss

> So there is no way to abort a bash script if something like <(sort nonexistent) fails.

The process ID of the last executed background command in Bash is available as $!.

  cat <(sort nonexistent)
  wait $! || echo fail

gives

  sort: cannot read: nonexistent: No such file or directory
  fail

andreyv

5 lat temudiscuss

Dell also removed trackpoint and all touchpad buttons, and made up/down arrow keys half height on the new Latitude laptops.

These are not the changes one would expect to see in a professional-grade laptop. On the other hand, the Lenovo line looks good in this regard.

andreyv

5 lat temudiscuss

Autoconf can use a cache file to speed up tests: https://www.gnu.org/software/autoconf/manual/autoconf-2.60/h...

andreyv

6 lat temudiscuss

In fast-paced games it is essential to disable vertical synchronization as well, trading possible tearing for less input lag.

Does Wayland support this?

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