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mysql_config not found when installing mysqldb python interface
...und".
Which linux distribution are you using? Mysql is pre-packaged for most linux distributions. For example, for debian / ubuntu, installing mysql is as easy as
sudo apt-get install mysql-server
mysql-config is in a different package, which can be installed from (again, assuming debian / ubu...
How do you echo a 4-digit Unicode character in Bash?
I'd like to add the Unicode skull and crossbones to my shell prompt (specifically the 'SKULL AND CROSSBONES' (U+2620)), but I can't figure out the magic incantation to make echo spit it, or any other, 4-digit Unicode character. Two-digit one's are easy. For example, echo -e "\x55", .
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How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?
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Use an overload of rfind which has the pos parameter:
std::string s = "tititoto";
if (s.rfind("titi", 0) == 0) {
// s starts with prefix
}
Who needs anything else? Pure STL!
Many have misread this to mean "search backwards through the whole string looking for...
What does “Could not find or load main class” mean?
...te that the classpath syntax is different for Windows versus Linux and Mac OS. (The classpath separator is ; on Windows and : on the others. If you use the wrong separator for your platform, you won't get an explicit error message. Instead, you will get a nonexistent file or directory on the path ...
Disable double-tap “zoom” option in browser on touch devices
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Note (as of 2020-08-04): this solution does not appear to work in iOS Safari v12+. I will update this answer and delete this note once I find a clear solution that covers iOS Safari.
CSS-only solution
Add touch-action: manipulation to any element on which you want to disable double tap zoom,...
How to resolve “git did not exit cleanly (exit code 128)” error on TortoiseGit? [closed]
...bviously works on windows as well. As far as I know git commands are never os specific.
– T_D
Sep 19 '16 at 15:30
Than...
Firebug-like debugger for Google Chrome
...tool already built into Chrome. Just right click anywhere on a page and choose "Inspect element" from the menu. Chrome has a graphical tool for debugging (like in Firebug), so you can debug JavaScript. It also does CSS inspection well and can even change CSS rendering on the fly.
For more informati...
QLabel: set color of text and background
...");
It works fine on Windows and Ubuntu, I haven't played with any other OS.
Note: Please see QPalette, color role section for more details
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Capture characters from standard input without waiting for enter to be pressed
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That's not possible in a portable manner in pure C++, because it depends too much on the terminal used that may be connected with stdin (they are usually line buffered). You can, however use a library for that:
conio available with Win...
How do I make my GUI behave well when Windows font scaling is greater than 100%
When choosing large font sizes in the Windows control panel (like 125%, or 150%) then there are problems in a VCL application, every time something has been set pixelwise.
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