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std::wstring VS std::string
... on a wchar_t.
char vs. wchar_t
char is supposed to hold a character, usually an 8-bit character.
wchar_t is supposed to hold a wide character, and then, things get tricky:
On Linux, a wchar_t is 4 bytes, while on Windows, it's 2 bytes.
What about Unicode, then?
The problem is that neither char ...
Node.js Best Practice Exception Handling
...hrow, and the stack. But you have to know how to use promises correctly in order to take advantage of them."
Number2: Use only the built-in Error object
TL;DR: It pretty common to see code that throws errors as string or as a custom type – this complicates the error handling logic and the int...
Using --no-rdoc and --no-ri with bundler
...
Order doesn't matter, btw. It's a list of command line flags to pass to gem.
– docwhat
Feb 11 '12 at 20:46
...
Finding index of character in Swift String
...domAccessIndexType. Probably because they enable characters with different byte lengths. That's why we have to use string.characters.count (count or countElements in Swift 1.x) to get the number of characters. That also applies to positions. The _position is probably an index into the raw array of b...
Why am I getting a NoClassDefFoundError in Java?
...up(down?)votes is way above it. There is something fishy about SO's answer ordering logic.
– Saurabh Patil
Jul 31 '17 at 14:00
1
...
How to implement a ViewPager with different Fragments / Layouts
... I have 3 Fragment classes, and a different layout file for each class. In order to keep things simple, the fragment-layouts only differ in their background color. Of course, any layout-file can be used for the Fragments.
FirstFragment.java has a orange background layout, SecondFragment.java has a ...
Is the “struct hack” technically undefined behavior?
...rictly conforming with the C Standard, although it does seem to work under all known implementations. (Compilers which check array bounds carefully might issue warnings.)
The rationale behind the 'strictly conforming' bit is in the spec, section J.2 Undefined behavior, which includes in the list o...
MySQL CONCAT returns NULL if any field contain NULL
...es: it returns the first non-NULL value parameter passed to it (or NULL if all parameters are NULL). By passing an empty string as the second parameter, you are guaranteeing it will not return NULL.
– Jo.
Mar 10 '17 at 17:03
...
Test if object implements interface
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
Passing command line arguments from Maven as properties in pom.xml
...guration>
Use outputDirectory if you want properties to be accessible by your app code:
<configuration>
<outputFile>${project.build.outputDirectory}/my.properties</outputFile>
</configuration>
For those looking for a fuller example (it took me a bit of fiddling to...