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LINQ: Distinct values
... .Select(element => new {
id = (int) element.Attribute("id"),
category = (int) element.Attribute("cat") })
.Distinct();
If you're trying to get a distinct set of values of a "larger" type, but only looking at so...
Why not infer template parameter from constructor?
...
I think it is not valid because the constructor isn't always the only point of entry of the class (I am talking about copy constructor and operator=). So suppose you are using your class like this :
MyClass m(string s);
MyClass *pm;
*pm = m;
I am not sure if it would be so obvious for the par...
Utilizing the GPU with c# [closed]
...ths ago or so, and did get it working though it took a little bit of work. Converts C# kernel code to cuda at compile time. Unfortunately their website has been down and their github hasn't been updated for a couple of years, which might indicate the project is dead....
Cudafy - Open source and very...
Code Golf - π day
..., I am using OpenBSD and some supposedly non-portable extensions at this point.
93 chars. This is based on same formula as FORTRAN solution (slightly different results than test cases). Calculates X^2=R^2-Y^2 for every Y
[rdPr1-d0<p]sp1?dsMdd*sRd2%--
[dd*lRr-vddlMr-32rlpxRR42r2*lpxRRAP4*2+lN+sN...
Why doesn't RecyclerView have onItemClickListener()?
...
@Override
public void onBindViewHolder(final ViewHolder holder, int position) {
final String element = mDataset[position];
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
onClic...
How do you obtain a Drawable object from a resource id in android package?
...
As of API 22. getDrawable(int id) is deprecated. Use getDrawable(int id, Resources.Theme theme) instead. The method getTheme() should be helpful.
– Isaac Zais
Apr 17 '15 at 18:07
...
Limiting floats to two decimal points
... integers and store values in cents, not dollars and then divide by 100 to convert to dollars.
Or use a fixed point number like decimal.
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Get integer value of the current year in Java
I need to determine the current year in Java as an integer. I could just use java.util.Date() , but it is deprecated.
15 A...
What does a lazy val do?
...val is executed when it is accessed the first time.
scala> val x = { println("x"); 15 }
x
x: Int = 15
scala> lazy val y = { println("y"); 13 }
y: Int = <lazy>
scala> x
res2: Int = 15
scala> y
y
res3: Int = 13
scala> y
res4: Int = 13
In contrast to a method (defined with d...
Difference between API and ABI
... some library function we write code like:
long howManyDecibels = 123L;
int ok = livenMyHills( howManyDecibels);
and we needed to know that there is a method livenMyHills(), which takes a long integer parameter. So as a Programming Interface it's all expressed in source code. The compiler turns...