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What does default(object); do in C#?
... worth making it explicit)
The biggest use of default(T) is in generics, and things like the Try... pattern:
bool TryGetValue(out T value) {
if(NoDataIsAvailable) {
value = default(T); // because I have to set it to *something*
return false;
}
value = GetData();
re...
How to initialize all the elements of an array to any specific value in java
...p just after initialization, which ranges from index 0 to index size-1 and inside that loop, I am assigning element to -1 . Below is the code for more understanding-
...
What is your favorite C programming trick? [closed]
...[] = {
#include "normals.txt"
};
(more or less, I don't have the code handy to check it now).
Since then, a new world of creative use of the preprocessor opened in front of my eyes. I no longer include just headers, but entire chunks of code now and then (it improves reusability a lot) :-p
Tha...
How to grep and replace
...
This touches every file so file times are modified; and converts line endings from CRLF to LF on Windows.
– jww
Oct 25 '17 at 0:21
...
ListView inside ScrollView is not scrolling on Android
... ScrollView . I have an Activity which has some EditTexts in the top part and then a tab host with two tabs which have one ListView each. When the EditText views are focused, the soft keyboard comes up and as I have a ScrollView, the content is scrollable. But the problem comes when there are more...
Reverse of JSON.stringify?
...
I read the OP as saying "I converted a javascript object to a JSON string, and now I want to convert it back - how do I do it?" All the other answers say just use JSON.parse. I'm just warning that theres a lot of cases that will not handle correctly. I...
Why are only final variables accessible in anonymous class?
...update the variable in a way which is seen by the main body of the method, and vice versa.)
As the value has been copied into the instance of the anonymous inner class, it would look odd if the variable could be modified by the rest of the method - you could have code which appeared to be working w...
Why does struct alignment depend on whether a field type is primitive or user-defined?
...ot supposed to happen.
You can see it by making the struct members public and appending test code like this:
var test = new RefAndTwoInt32Wrappers();
test.text = "adsf";
test.x.x = 0x11111111;
test.y.x = 0x22222222;
Console.ReadLine(); // <=== Breakpoint here
When the...
File Upload in WebView
I have been struggling to upload files from WebView since last few
days and there is no progress. I googled and implemented all suggested
solutions but none works, like: solutions suggested here ,
and so on.
...
Why doesn't Java support unsigned ints?
...
This is from an interview with Gosling and others, about simplicity:
Gosling: For me as a language designer, which I don't really count myself as these days, what "simple" really ended up meaning was could I expect J. Random Developer to hold the spec in his h...