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How to exit if a command failed?
...on-zero).
Using ( ) makes the command inside them run in a sub-shell and calling a exit from there causes you to exit the sub-shell and not your original shell, hence execution continues in your original shell.
To overcome this use { }
The last two changes are required by bash.
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What does the @ symbol represent in objective-c?
...structs.
The major exceptions are id, Class, nil, and Nil, which are generally treated as language keywords even though they may also have a typedef or #define behind them. For example, the compiler actually does treat id specially in terms of the pointer type conversion rules it applies to declar...
How can you find the unused NuGet packages in a solution?
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I must be blind but I'm not seeing any way to actually run this tool
– claudekennilol
Mar 9 '17 at 20:08
17
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java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare();
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How do i call a method in that Activity, which i am making a toast message in with this code?
– lxknvlk
Mar 22 '15 at 9:20
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What is the difference between XML and XSD?
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Actually the XSD is XML itself. Its purpose is to validate the structure of another XML document. The XSD is not mandatory for any XML, but it assures that the XML could be used for some particular purposes. The XML is only conta...
xcodebuild says does not contain scheme
...lt behavior of Schemes is to keep schemes 'private' until they are specifically marked as shared. In the case of a command-line initiated build, the Xcode UI never runs and the xcoderun tool doesn't have its own cache of Schemes to work with. The goal is to generate, share, and commit the scheme y...
Implementing comparison operators via 'tuple' and 'tie', a good idea?
(Note: tuple and tie can be taken from Boost or C++11.)
When writing small structs with only two elements, I sometimes tend to choose a std::pair , as all important stuff is already done for that datatype, like operator< for strict-weak-ordering.
The downsides though are the pretty much us...
IIS: Idle Timeout vs Recycle
...mory leaking purposes and system health
The negative impact of both is usually the use of your Session and Application state is lost if you mess with Recycle to a faster time.(logged in users etc will be logged out, if they where about to "check out" all would have been lost" that's why recycle is ...
list.clear() vs list = new ArrayList(); [duplicate]
... the array copy that occurs when size exceeds capacity on an .add(Object) call.
– Platinum Azure
Aug 5 '11 at 19:12
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Why is a 3-way merge advantageous over a 2-way merge?
...s (without reference to the original), why can't it apply both changes serially in increasing order of files' timestamps? That is: It starts off with my friend's committed copy taking it to be the (new) original (with the line addition at the top) and then, on top of it, applies my local changes (li...