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Error handling in C code
...ints or different enumerations with return-codes.
provide a function that converts errors into something human readable. Can be simple. Just error-enum in, const char* out.
I know this idea makes multithreaded use a bit difficult, but it would be nice if application programmer can set an global err...
Custom views with Storyboard
...get within the same storyboard, and it is possible. Here's how you do it:
Select your view controller in IB (click on the black bar below the view), then drag a UIView from the Object Library into the black bar:
When a view is in the black bar, it's instantiated like any other view in IB but just...
Struct like objects in Java
...LATIVE math errors, as changes to individual components of polar coord are converted back to (x, y).
– ToolmakerSteve
Jun 17 '14 at 22:29
...
Possible to make labels appear when hovering over a point in matplotlib?
...y program a bit simpler to read, and less code. Now off to find a guide to converting a color to a number!
– jdmcbr
Oct 27 '11 at 1:09
...
What are some better ways to avoid the do-while(0); hack in C++?
...le useful, is not a silver bullet. When you find yourself about to write a convert-goto-to-RAII class that has no other use, I definitely think you'd be better served just using the "goto-end-of-the-world" idiom people mentioned already.
– idoby
Aug 29 '13 at 1...
How to ignore user's time zone and force Date() use specific time zone
...Answer doesn't give the correct result. In the question the asker wants to convert timestamp from server to current time in Hellsinki disregarding current time zone of the user.
It's the fact that the user's timezone can be what ever so we cannot trust to it.
If eg. timestamp is 1270544790922 and ...
Can a JSON value contain a multiline string
...on tool. Link . It allows you to write text multi-lined in editor and then converts it to the proper valid JSON format. Note: it adds '\n' characters for the new lines, but you can simply delete them in any text editor with the "Replace all.." function.
P.S. Should be a comment to the question, bu...
Writing a compiler in its own language
...ve to parse strings, specifically escape sequences. You will write code to convert \n to the character with the decimal code 10 (and \r to 13, etc).
After that compiler is ready, you will start to reimplement it in C. This process is called "bootstrapping".
The string parsing code will become:
.....
Understanding Python's “is” operator
... references.
In fact, the compiler can go even further: 'ab' + 'c' can be converted to 'abc' by the optimizer, in which case it can be folded together with an 'abc' constant in the same module.
Again, this is something Python is allowed but not required to do. But in this case, CPython always fold...
Replace a value if null or undefined in JavaScript
...perator || does not return a boolean value but the first value that can be converted to true.
Additionally use an array of objects instead of one single object:
var options = {
filters: [
{
name: 'firstName',
value: 'abc'
}
]
};
var filter = options...