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What is the “volatile” keyword used for?
... correct usage. Could you please tell me what it should be used for in C# and in Java?
8 Answers
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How to create a temporary directory?
I use to create a tempfile , delete it and recreate it as a directory:
4 Answers
4
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In Python, if I return inside a “with” block, will the file still close?
...o that doesn't guarantee the call of a finally statement: "Note that exit handlers and finally clauses, etc., will not be executed."
– Rik Poggi
Mar 27 '12 at 7:55
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How to use support FileProvider for sharing content to other apps?
...orrectly share (not OPEN) an internal file with external application using Android Support library's FileProvider .
9 Ans...
How can I create directory tree in C++/Linux?
...
With C++17 or later, there's the standard header <filesystem> with
function
std::filesystem::create_directories
which should be used in modern C++ programs.
The C++ standard functions do not have the POSIX-specific explicit
permissions (mode) argument, t...
Why is volatile needed in C?
...ther thread running that also uses the variable; or when there's a signal handler that might change the value of the variable.
Let's say you have a little piece of hardware that is mapped into RAM somewhere and that has two addresses: a command port and a data port:
typedef struct
{
int command;...
Fastest way to remove first char in a String
...foo" instead of "//foo".
The first option needs a bit more work to understand than the third - I would view the Substring option as the most common and readable.
(Obviously each of them as an individual statement won't do anything useful - you'll need to assign the result to a variable, possibly d...
Ask for User Permission to Receive UILocalNotifications in iOS 8
...ion to show notifications from your app, this applies for both remote/push and local notifications. In Swift you can do it like this,
Update for Swift 2.0
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {
// Override point for...
.bashrc/.profile is not loaded on new tmux session (or window) — why?
...he profile.
The rules as to when bash runs certain files are complicated, and depend on the type of shell being started (login/non-login, interactive or not, and so forth), along with command line arguments and environment variables.
You can see them in the man bash output, just look for INVOCATIO...
Symbolic link to a hook in git
...
I don't understand why I need to go up two directories to link a resource that lives in the folder I've cd'd into. Shouldn't it just be ln -s ./hooks/ ?
– Droogans
Aug 4 '13 at 19:13
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