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Why do we need C Unions?
... follows:
reg.dword = 0x12345678;
reg.bytes.byte3 = 4;
Endianness (byte order) and processor architecture are of course important.
Another useful feature is the bit modifier:
typedef union
{
struct {
unsigned char b1:1;
unsigned char b2:1;
unsigned char b3:1;
...
UICollectionView Set number of columns
...h Swift 5 and iOS 12.3, you can use one the 4 following implementations in order to set the number of items per row in your UICollectionView while managing insets and size changes (including rotation).
#1. Subclassing UICollectionViewFlowLayout and using UICollectionViewFlowLayout's itemSize prop...
What Automatic Resource Management alternatives exist for Scala?
...peration using resources, after which it releases the resources in reverse order of their creation.
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Apply function to all elements of collection through LINQ [duplicate]
...@Lodewijk: In what way is using a method which has to have side-effects in order to be any use functional? The Where part is functional... the ForEach part not so much, IMO.
– Jon Skeet
Mar 26 '14 at 18:32
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Is there a better alternative than this to 'switch on type'?
...17 switching on types is supported - see Zachary Yates's answer below). In order to do this without a large if/else if/else statement, you'll need to work with a different structure. I wrote a blog post awhile back detailing how to build a TypeSwitch structure.
https://docs.microsoft.com/archive/bl...
How to pass table value parameters to stored procedure from .net code
...ued parameter with multiple columns whose ordinals are not in alphabetical order.
As an example, if you have the following table value that is used as a parameter in SQL:
CREATE TYPE NodeFilter AS TABLE (
ID int not null
Code nvarchar(10) not null,
);
You would need to order your columns as ...
Difference between Python's Generators and Iterators
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Higher-order functions passing around generators or generator functions may sound weird, but for me they have been coming up. I'm working in Apache Spark and it enforces a very functional programming style. The functions have to cre...
How do you read a file into a list in Python? [duplicate]
...e-character by using the strip()-method. I.e. call lines[index].strip() in order to get the string without the newline character.
As joaquin noted, do not forget to f.close() the file.
Converting strint to integers is easy: int("12").
...
Is GridFS fast and reliable enough for production?
... since it's up and running. The resize and store stuff is done by a simple php script... but for sure, a python script, or something like java could be faster.
Current data size : 11.23g
Current storage size : 12.5g
Indices : 5
Index size : 849.65m
About the reliability : This is very reliable....
How to prevent gcc optimizing some statements in C?
In order to make a page dirty (switching on the dirty bit in the page table entry), I touch the first bytes of the page like this:
...