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function declaration isn't a prototype
... void consistently when you mean no arguments.
If you have a variable a, extern int a; is a way to tell the compiler that a is a symbol that might be present in a different translation unit (C compiler speak for source file), don't resolve it until link time. On the other hand, symbols which are fu...
How to permanently export a variable in Linux?
I am running RHEL6, and I have exported an environment variable like this:
6 Answers
6...
difference between Product Backlog Item and Feature in Team Foundation work item types
I have a question about Microsoft Team Foundation. In Visual Studio, Team Explorer, I can create a new work item. Work item types here are dictated by your team's chosen process template; I'm not sure which process template we're using. In any case, in Team Explorer, when I want to create a new work...
Parse string to date with moment.js
...
What about existing date variables. var date = moment("2014-02-27T10:00:00").format('DD-MM-YYYY'); var dateCalendarPart = moment(date).format('YYYY/MM/DD'); alert(date); alert(dateCalendarPart); Gives an invalid date error?????
...
How does a Linux/Unix Bash script know its own PID?
...r more information, including differences between the two.
TL;DRTFM
$$ Expands to the process ID of the shell.
In a () subshell, it expands to the process ID of the invoking shell, not the subshell.
$BASHPID Expands to the process ID of the current Bash process.
In a () subshell, it expands...
Change R default library path using .libPaths in Rprofile.site fails to work
... want to add a library why not append the new library (which must already exist in your filesystem) to the existing library path?
.libPaths( c( .libPaths(), "~/userLibrary") )
Or (and this will make the userLibrary the first place to put new packages):
.libPaths( c( "~/userLibrary" , .libPaths(...
How do I declare an array of weak references in Swift?
... with reaping array contents, you could do something along the lines of:
extension Array where Element:Weak<AnyObject> {
mutating func reap () {
self = self.filter { nil != $0.value }
}
}
The use of AnyObject above should be replaced with T - but I don't think the current Swift lang...
What are the most useful Intellij IDEA keyboard shortcuts? [closed]
...
These are some of my most used keyboard short cuts
Syntax aware selection in the editor selects a word at the caret and then selects expanding areas of the source code. For example, it may select a method name, then the expression that calls this method, then the whole statement, ...
Java: splitting a comma-separated string but ignoring commas in quotes
...[] args) {
String line = "foo,bar,c;qual=\"baz,blurb\",d;junk=\"quux,syzygy\"";
String[] tokens = line.split(",(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)", -1);
for(String t : tokens) {
System.out.println("> "+t);
}
}
}
Output:
> foo
> bar
> c;qua...
What exactly is a Maven Snapshot and why do we need it?
...e idea is that before a 1.0 release (or any other release) is done, there exists a 1.0-SNAPSHOT. That version is what might become 1.0. It's basically "1.0 under development". This might be close to a real 1.0 release, or pretty far (right after the 0.9 release, for example).
The difference between...