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C++ : why bool is 8 bits long?
... fast and we need that signal to be as fast as possible."
Well, it was a test to see if I understood the concepts and bits, bytes, and error handling. How easy would it for a bad guy to send out a one bit msg. Or what happens if during transmittion the bit gets flipped the other way.
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Programmatically retrieve memory usage on iPhone
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This has been tested on Xcode 11 in Mojave 10.4.6 on 07/01/2019.
All of the previous answers return the incorrect result.
Here is how to get the expected value written by Apple's Quinn “The Eskimo!”.
This uses the phys_footprint var...
Linear Regression and group by in R
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Inside the function you'd need to test for that case and use a different formula
– hadley
Mar 14 '13 at 15:24
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Broadcast receiver for checking internet connection in android app
... I am familiar with all of this , but I have doubts. I did some tests and found out that these broadcast receivers detect if your wifi / phone radio goes ON or OFF, or simply, if your device has an IP address. The problem comes when for example my phone is connected to a WiFi access point...
How does a “stack overflow” occur and how do you prevent it?
...her too many times.
Beyond good programming practices, static and dynamic testing, there's not much you can do on these high level systems.
Embedded systems
In the embedded world, especially in high reliability code (automotive, aircraft, space) you do extensive code reviews and checking, but you...
Configuring diff tool with .gitconfig
..."]
cmd = "diffmerge --merge --result=\"$MERGED\" \"$LOCAL\" \"$(if test -f \"$BASE\"; then echo \"$BASE\"; else echo \"$LOCAL\"; fi)\" \"$REMOTE\""
trustExitCode = false
[diff]
tool = diffmerge
[difftool "diffmerge"]
cmd = diffmerge \"$LOCAL\" \"$REMOTE\"
So, you se...
Favourite performance tuning tricks [closed]
...d ordered, and a HASH for everything else. Adding a join hint will let you test your theory.
Parameter sniffing. If you ran the stored proc with unrealistic values at first (say, for testing), then the cached query plan may be suboptimal for your production values. Running again WITH RECOMPILE shoul...
calculating the difference in months between two dates
...of the actual dates used, and for months they're important.)
The code and tests are both available on GitHub. The code is very simple:
public static int GetTotalMonthsFrom(this DateTime dt1, DateTime dt2)
{
DateTime earlyDate = (dt1 > dt2) ? dt2.Date : dt1.Date;
DateTime lateDate = (dt1...
iOS 7: UITableView shows under status bar
...e Object Library
Set it as the initial view controller
Feed the table some test data
If you follow the above steps, when you run the app, you will see that nothing, including tweaking Xcode's checkboxes to "Extend Edges Under {Top, Bottom, Opaque} Bars" works to stop the first row from appearing u...
Priority queue in .Net [closed]
... This looks to be a very solid library and it comes with 1400 unit tests.
– ECC-Dan
Mar 26 '13 at 14:16
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