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string c_str() vs. data()
I have read several places that the difference between c_str() and data() (in STL and other implementations) is that c_str() is always null terminated while data() is not.
As far as I have seen in actual implementations, they either do the same or data() calls c_str() .
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C++ equivalent of Java's toString?
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In C++ you can overload operator<< for ostream and your custom class:
class A {
public:
int i;
};
std::ostream& operator<<(std::ostream &strm, const A &a) {
return strm << "A(" << a.i << ")";
}
Th...
Building and running app via Gradle and Android Studio is slower than via Eclipse
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Hardware
I'm sorry, but upgrading development station to SSD and tons of ram has probably a bigger influence than points below combined.
Tools versions
Increasing build performance has major priority for the development teams, so make sure you are us...
How do I write a custom init for a UIView subclass in Swift?
...tuted from a Nib then your custom initializer will not be called, and instead the init?(coder:) version will be called. Since Swift now requires an implementation of the required init?(coder:), I have updated the example below and changed the let variable declarations to var and optional. In this ca...
Type Checking: typeof, GetType, or is?
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themefield
1,8592020 silver badges2525 bronze badges
answered Jun 11 '09 at 19:15
JimmyJimmy
77.8k1616 gold...
When to use SELECT … FOR UPDATE?
...etween rooms and tags and making sure rooms are never returned after they had been deleted is locking them with SELECT FOR UPDATE.
However in some systems locking is a side effect of concurrency control, and you achieve the same results without specifying FOR UPDATE explicitly.
To solve this ...
Can I change the root EBS device of my amazon EC2 instance?
...e. I would like to change the root device on this instance. Can you please advise the best way to go about this?
6 Answers
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How do I reference an existing branch from an issue in GitHub?
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Community♦
111 silver badge
answered Nov 4 '11 at 11:23
fuzzyalejfuzzyalej
5,5652828 silver badges494...
Determine project root from a running node.js application
...home/demo
$ cd subdir
$ node demo.js
/home/demo/subdir
app-root-path
To address this issue, I've created a node module called app-root-path. Usage is simple:
var appRoot = require('app-root-path');
var myModule = require(appRoot + '/lib/my-module.js');
The app-root-path module uses several di...
Is inline assembly language slower than native C++ code?
...mance of inline assembly language and C++ code, so I wrote a function that add two arrays of size 2000 for 100000 times. Here's the code:
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