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What is an unsigned char?
...ich gives you at least the 0 to 255 range.
"At least", because the C++ standard only gives the minimum range of values that each numeric type is required to cover. sizeof (char) is required to be 1 (i.e. one byte), but a byte could in theory be for example 32 bits. sizeof would still be report its...
How do I get the current username in Windows PowerShell?
...
A quick and dirty alternative would be $env:username to retrieve the user name from the corresponding environment variable.
– guillermooo
Jan 21 '10 at 0:25
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What is the cleanest way to ssh and run multiple commands in Bash?
I already have an ssh agent set up, and I can run commands on an external server in Bash script doing stuff like:
12 Answer...
Xcode: failed to get the task for process
...bution certificate, which disallows this behavior (you wouldn't want some random fool hooking into your app after downloading it from the app store). Compile with the development certificate instead. You can change this in the building settings under code signing.
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Check folder size in Bash
I'm trying to write a script that will calculate a directory size and if the size is less than 10GB, and greater then 2GB do some action. Where do I need to mention my folder name?
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How to create a WPF Window without a border that can be resized via a grip only?
...indow (even without setting any transparency values) the border disappears and you can only resize via the grip.
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Width="640" Height="480"
WindowStyle=...
Preloading CSS Images
...eployed clicking on a button. Its fields are set as CSS background images, and they always appears a bit later than the div that have been toggled.
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async/await - when to return a Task vs void?
... are special in another aspect: they represent top-level async operations, and have additional rules that come into play when your task returns an exception. The easiest way is to show the difference is with an example:
static async void f()
{
await h();
}
static async Task g()
{
await h()...
MySQL/Amazon RDS error: “you do not have SUPER privileges…”
...o load your dump file without errors.
If you want to ignore these errors, and load the rest of the dump file, you can use the -f option:
mysql -f my_database -u my_username -p -h
my_new_database.xxxxxxxxx.us-east-1.rds.amazonaws.com < my_database.sql
The -f will report errors, but will cont...
PostgreSQL: Modify OWNER on all tables simultaneously in PostgreSQL
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See REASSIGN OWNED command
Note: As @trygvis mentions in the answer below, the REASSIGN OWNED command is available since at least version 8.2, and is a much easier method.
Since you're changing the ownership for all tables, you likely want view...