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Converting BigDecimal to Integer
...very specific need for the wrap around that happens when you drop the high-order bits.
Given those params, intValueExact() throws an exception when we don't want it to if our fractional part is non-zero. On the other hand, intValue() doesn't throw an exception when it should if our BigDecimal is ...
When to use reinterpret_cast?
...is true that reinterpret_cast is not portable because of one reason - byte order (endianness). But this is often surprisingly the best reason to use it. Let's imagine the example: you have to read binary 32bit number from file, and you know it is big endian. Your code has to be generic and works pro...
Is there any JSON Web Token (JWT) example in C#?
...und it,) are:
Changed HS256 -> RS256
Swapped the JWT and alg order in the header. Not sure who got it wrong, Google or the spec, but google takes it the way It is below according to their docs.
public enum JwtHashAlgorithm
{
RS256,
HS384,
HS512
}
public class JsonWebT...
Remote debugging with Android emulator
... to notify a local adb server at startup; hence the need to restart adb in order for it to probe the local 5554+ ports.
Note that the localhost in the ssh command refers to the local interface of the remote machine.
adb devices showed a new emulator — emulator-5554 — and I could use it as if i...
Interface Builder: What are the UIView's Layout iOS 6/7 Deltas for?
... you're working with. If you're editing for iOS 6, the deltas there are in order to transform the element correctly for iOS 7 (the reverse of the example above).
In order to view the different styles, you can change the way Interface Builder presents it based on the OS it would be running on. This ...
Peak detection in a 2D array
...tains the peaks we are
#looking for, but also the background.
#In order to isolate the peaks we must remove the background from the mask.
#we create the mask of the background
background = (image==0)
#a little technicality: we must erode the background in order to
#succes...
How should you build your database from source control?
...scripts named liked 001_AlterXXX.sql, so that running them in natural sort order will upgrade from version A to B)
Which types of objects shouldn't be version controlled?
Sequences?
Grants?
User Accounts?
see 2. If your users/roles (or technical user names) are different between environments, yo...
What is a patch in git version control?
...ave two versions of the file (or even the whole repository) checked out in order to compare them. Doesn't sound that good, does it? So git takes care of all of the hard work for you - it compares your local file with what is there in the repository you are working with, and can show it to you as a "...
Make child visible outside an overflow:hidden parent
In CSS the overflow:hidden is set on parent containers in order to allow it to expand with the height of their floating children.
...
Sticky and NON-Sticky sessions
...ct way of one knowing what is there in the session object of the other. In order to synchronize between these server sessions, you may have to write/read the session data into a layer which is common to all - like a DB. Now writing and reading data to/from a db for this use-case may not be a good id...