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How to open, read, and write from serial port in C?
... tty;
if (tcgetattr (fd, &tty) != 0)
{
error_message ("error %d from tcgetattr", errno);
return -1;
}
cfsetospeed (&tty, speed);
cfsetispeed (&tty, speed);
tty.c_cflag = (tty.c_cflag & ~CSIZE) | CS8; ...
How to catch curl errors in PHP
...
You can use the curl_error() function to detect if there was some error. For example:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $your_url);
curl_setopt($ch, CURLOPT_FAILONERROR, true); // Required for HTTP error codes to be reported via o...
Making 'git log' ignore changes for certain paths
... shell, use ':!sub' or ":\!sub" instead to avoid bash: ... event not found errors
Note: Git 2.13 (Q2 2017) will add a synonym ^to !
See commit 859b7f1, commit 42ebeb9 (08 Feb 2017) by Linus Torvalds (torvalds).
(Merged by Junio C Hamano -- gitster -- in commit 015fba3, 27 Feb 2017)
pathspec magic...
How do I make CMake output into a 'bin' dir?
...
English is not my native language; please excuse typing errors.
use this line config :
set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/build/)
place your any CMakeLists.txt project.
this ${PROJECT_SOURCE_DIR} is your current source directory where project place .
and if wand...
Python unit test with base and sub class
...I think the setUpClass method below is the best and is less prone to human error. Either that or wrapping the BaseTest class in a container class which is a bit more hacky but avoids the skip message in the test run printout.
– David Sanders
Oct 17 '14 at 16:2...
Relational table naming convention [closed]
...e it assists in resolving the model, ie. clarifying relations, identifying errors, and correcting the table names.
Diagram_A
Of course, the relationship is implemented in SQL as a CONSTRAINT FOREIGN KEY in the child table (more, later). Here is the Verb Phrase (in the model), the Predicate that...
Cannot read configuration file due to insufficient permissions
I've recently encountered an error trying to host my asp.net site with IIS. I have found a solution that many swear by.
40...
How to do a https request with bad certificate?
...ppen to know a site where I can test this? golang org now doesn't throw an error anymore.
– topskip
Nov 8 '17 at 7:57
3
...
Python argparse mutual exclusive group
...llness', '-b x'])
usage: PROG [-h] [--foo] {command_1,command_2} ...
PROG: error: unrecognized arguments: -b x
Good luck.
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Can virtual functions have default parameters?
... B;
A* pa = pb;
pa->f(); //OK, calls pa->B::f(7)
pb->f(); //error: wrong number of arguments for B::f()
}
Here is a sample program to demonstrate what defaults are picked up. I'm using structs here rather than classes simply for brevity -- class and struct are exactly the same i...