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Sort a Map by values
...sistent with equals (see the sortMap javadox). This means retireving items from the tree map will not work. sorted_map.get("A") will return null. That means this use of treemap is broken.
– mR_fr0g
Dec 1 '10 at 14:36
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Error when changing to master branch: my local changes would be overwritten by checkout
...le and the branch that you are switching to has changes for this file too (from latest merge point).
Your options, as I see it, are - commit, and then amend this commit with extra changes (you can modify commits in git, as long as they're not pushed); or - use stash:
git stash save your-file-name
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What is uintptr_t data type
...t standard) even in C++11! cplusplus.com/reference/cstdint (I got the hint from Steve Jessop answer)
– Antonio
Oct 1 '14 at 20:56
2
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What is an “unwrapped value” in Swift?
...ar cantBeNil : Int = 4
cantBeNil = nil // can't do this
To get the value from your variable if it is optional, you have to unwrap it. This just means putting an exclamation point at the end.
var canBeNil : Int? = 4
println(canBeNil!)
Your code should look like this:
let optionalSquare: Square?...
Explicitly calling a default method in Java
...oo();
}
public void bah() {
A.super.foo(); //original foo() from A accessed
C.super.foo(); //original foo() from C accessed
}
}
A and C can both have .foo() methods and the specific default implementation can be chosen or you can use one (or both) as part of your new foo(...
What is aspect-oriented programming?
...flow. These can be almost impossible to trace, especially when they derive from that system's version of aspects, which it calls roles. One can compose systems of staggering complexity with all this.
– tchrist
Mar 19 '16 at 23:03
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The project type is not supported by this installation
Whenever I try to open a project (csproj) that's downloaded from the internet, most of the times, I get the
15 Answers
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C/C++ Struct vs Class
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From OOP prospective .Net guys have defined it this way ✓ CONSIDER defining a struct instead of a class if instances of the type are small and commonly short-lived or are commonly embedded in other objects. X AVOID defining...
What's the best strategy for unit-testing database-driven applications?
...ying complexity on the backend. Typically, there's an ORM layer separate from the business and presentation logic. This makes unit-testing the business logic fairly straightforward; things can be implemented in discrete modules and any data needed for the test can be faked through object mocking.
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PHP Timestamp into DateTime
...ime, but the DateTime constructor does support creating instances directly from timestamps. According to this documentation, all you need to do is prepend the timestamp with an @ character:
$timestamp = strtotime('Mon, 12 Dec 2011 21:17:52 +0000');
$dt = new DateTime('@' . $timestamp);
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