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Does making a struct volatile make all its members volatile?
...on can be asked (or simply another way to look at the original question):
Does making a struct const make all its members const?
If I have:
struct whatever { int data; };
const whatever test;
Will test.data be const too?
My answer is : Yes. If you declare an object of type whatever with const...
How does one use rescue in Ruby without the begin and end block
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How do I 'svn add' all unversioned files to SVN?
...c:\work\repo1>svn add . --force
Adds the contents of subdirectories.
Does not add ignored files.
Lists what files were added.
The dot in the command indicates the current directory, this can replaced by a specific directory name or path if you want to add a different directory than the curre...
How to read and write into file using JavaScript?
...
For completeness, the OP does not state he is looking to do this in a browser (if he is, as has been stated, it is generally not possible)
However javascript per se does allow this; it can be done with server side javascript.
See this documentation...
How to remove/change JQuery UI Autocomplete Helper text?
...
Not sure what source: availableTags does? I removed it and I still had no messages.
– Chuck Le Butt
Mar 7 '13 at 15:49
3
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Java 7 language features with Android
...y in 4.4+)
The @SafeVarargs annotation — because "java.lang.SafeVarargs" does not exist
... "yet" :) It turns out that, although Android's library is targeting for 1.6, the Android source does contain interfaces like AutoCloseable and traditional interfaces like Closeable does inherit from AutoC...
Accessing inactive union member and undefined behavior?
...g the use of unions containing structs with common initial sequences; this doesn't however permit type-punning.
To determine whether union type-punning is allowed in C++, we have to search further. Recall that c99 is a normative reference for C++11 (and C99 has similar language to C11 permitting u...
Can you “ignore” a file in Perforce?
...se the path will be corrupt (but if you just want them out of your way, it doesn't matter).
-//depot/foo.../*.dll //CLIENT/foo.../*.dll
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JavaScript equivalent of PHP’s die
Is there something like "die" in JavaScript? I've tried with "break", but doesn't work :)
14 Answers
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Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?
... a lot less common partially because it is so counter-intuitive, though it does have one very important application: functions.
trait Function1[-P, +R] {
def apply(p: P): R
}
Notice the "-" variance annotation on the P type parameter. This declaration as a whole means that Function1 is contrav...