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Count character occurrences in a string in C++
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Small note, but the return type is typically signed. For some reason std::count returns type iterator_traits<InputIt>::difference_type, which for most standard containers is std::ptrdiff_t, not std::size_t.
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How to access property of anonymous type in C#?
...null in three different situations!
o is null, so there is no object at all
o is non-null but doesn't have a property Foo
o has a property Foo but its real value happens to be null.
So this is not equivalent to the earlier examples, but may make sense if you want to treat all three cases the sa...
How to fix corrupted git repository?
... have a corrupted local repo, but a trusted remote.
# This script replaces all your history with that of the remote.
# If there is a .git, it is backed up as .git_old, removing the last backup.
# This does not affect your working tree.
#
# This does not currently work with submodules!
# This will ab...
How do I profile memory usage in Python?
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This one has been answered already here: Python memory profiler
Basically you do something like that (cited from Guppy-PE):
>>> from guppy import hpy; h=hpy()
>>> h.heap()
Partition of a set of 48477 objects. Total size = 3265516 bytes.
Index Count % Size % Cumulat...
Why is using 'eval' a bad practice?
...d eval have nothing to do with each other. An application that's fundamentally mis-designed is fundamentally mis-designed. eval is no more the root cause of bad design than division by zero or attempting to import a module which is known not to exist. eval isn't insecure. Applications are insecu...
submitting a GET form with query string params and hidden params disappear
...the question mark and the parameters, and then cross one's fingers to hope all browsers would leave that URL as it (and validate that the server understands it too). But I'd never rely on that.
By the way: it's not different for non-hidden form fields. For POST the action URL could hold a query stri...
Moving from CVS to Git: $Id$ equivalent?
... for example, you packaged a version file with the source (or even rewrote all the content for distribution) to show that number. Let's say that packaged version was 2.2-12-g6c4ae7a (not a release, but a valid version).
You can now see exactly how far behind you are (4 commits), and you can see exa...
Bold & Non-Bold Text In A Single UILabel?
...deal with iOS5 old stuff besides syntax is shorter so everything becomes really simple:
Swift 5
func attributedString(from string: String, nonBoldRange: NSRange?) -> NSAttributedString {
let fontSize = UIFont.systemFontSize
let attrs = [
NSAttributedString.Key.font: UIFont.bold...
How to convert an array to object in PHP?
...lue)
{
$object->$key = $value;
}
As Edson Medina pointed out, a really clean solution is to use the built-in json_ functions:
$object = json_decode(json_encode($array), FALSE);
This also (recursively) converts all of your sub arrays into objects, which you may or may not want. Unfortunat...
Check if application is on its first run [duplicate]
I am new to android development and and I want to setup some of application's attributes based on Application first run after installation. Is there any way to find that the application is running for the first time and then to setup its first run attributes?
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