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C++ preprocessor __VA_ARGS__ number of arguments
... The answer links to another site. Also the link doesn't seem to point to the correct answer. And even if I managed to find the intended answer it does seem a poor one as it embeds an hardcoded "-1" that will be compiled. There are better methods.
– ceztko
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Best way to represent a fraction in Java?
...raction class not too long ago, for Project Euler problems. It keeps a BigInteger numerator and denominator, so it'll never overflow. But it'll be a tad slow for a lot of operations that you know will never overflow.. anyway, use it if you want it. I've been dying to show this off somehow. :)
Ed...
Multi-line tooltips in Java?
...ttps://github.com/ls-cwi/yoshiko-app/blob/master/src/main/java/com/yoshiko/internal/view/JMultiLineToolTip.java
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编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...部的秘密--微软的编译器是如何解析Try/Catch/Throw的Compiler-Internals-How-Try-Catch-Throw-are-Interprpreted-by-the-Microsoft-Compiler本文不是一篇介绍如何在x86架构上详细地实现异常处理(exception handling)的手册，只是一篇入门的讨论性文章。本文只...
Difference between `data` and `newtype` in Haskell
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While data declares a brand new data structure at runtime.
So the key point here is that the construct for the newtype is guaranteed to be erased at compile time.
Examples:
data Book = Book Int Int
newtype Book = Book (Int, Int)
Note how it has exactly the same representation as a (I...
ActiveRecord OR query
...zation and make your queries DB agnostic. The only overhead is where Rails converts the syntax to SQL query. And it is just a matter of milliseconds. Ofcourse you should write the best performant SQL query and try to convert it to ActiveRecord syntax. If the SQL cannot be represented in ActiveRecord...
handle textview link click in my android app
...y own app, there is a solution that is a bit simpler.
Besides the default intent filter, I simply let my target activity listen to ACTION_VIEW intents, and specifically, those with the scheme com.package.name
<intent-filter>
<category android:name="android.intent.category.DEFAULT" /&g...
How to make my custom type to work with “range-based for loops”?
...useful is that your end iterator can read "check your char* to see if it points to '0'" when == with a char*. This allows a C++ range-for expression to generate optimal code when iterating over a null-terminated char* buffer.
struct null_sentinal_t {
template<class Rhs,
std::enable_if_t<...
What is the default access modifier in Java? [duplicate]
... depends on the context.
When it's within a class:
class example1 {
int a = 10; // This is package-private (visible within package)
void method1() // This is package-private as well.
{
-----
}
}
When it's within a interface:
interface example2 {
int b = 10; // Thi...
How to handle WndProc messages in WPF?
...)
// 'this' is a Window
HwndSource source = HwndSource.FromHwnd(new WindowInteropHelper(this).Handle);
source.AddHook(new HwndSourceHook(WndProc));
private static IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
// do stuff
return IntPtr.Zero;
}
No...