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When do I use fabs and when is it sufficient to use std::abs?
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Adjusting Eclipse console size
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insert multiple rows via a php array into mysql
...like you might be running into string-handling problems in PHP, which is really an algorithm problem, not a language one. Basically, when working with large strings, you want to minimize unnecessary copying. Primarily, this means you want to avoid concatenation. The fastest and most memory efficient...
Is it good style to explicitly return in Ruby?
...d
Was this meant to be a function that returned a value, or not? It's really hard to say what the developer meant, as it both assigns the instance variable, AND returns the value assigned as well.
Suppose much later, another programmer (perhaps not that familiar with how Ruby does returns based ...
Understanding checked vs unchecked exceptions in Java
...en. If it is in the UI layer - catch it and show a warning; if it's in the service layer - don't catch it at all - let it bubble. Just don't swallow the exception. If an exception occurs in most of the cases you should choose one of these:
log it and return
rethrow it (declare it to be thrown by t...
How does Windows 8 Runtime (WinRT / Windows Store apps / Windows 10 Universal App) compare to Silver
... pieces are concerned. You can almost fix it by replacing "Windows Kernel Services" with "Win32 kernel32.dll" and "Win32" with "Win32 user32.dll+gdi32.dll"... but IE and .NET/Silverlight should be layered mostly on top of user32.dll+gdi32.dll, and those as well as C/C++/Java/Delphi/etc also reach d...
Preferred Java way to ping an HTTP URL for availability
...at if the DNS is down? Google DNS (e.g.
8.8.8.8) is the largest public DNS service in the world. As of 2013 it serves 130 billion requests a day. Let ‘s just say, your app not
responding would probably not be the talk of the day.
read the link. its seems very good
EDIT:
in my exp of using it, i...
Direct casting vs 'as' operator?
... tend to almost never use 2 since if something is not the right type, I usually expect an exception to occur. I have only seen a need for this return-null type of functionality with badly designed libraries which use error codes (e.g. return null = error, instead of using exceptions).
3 is not a ca...
What is “(program)” in Chrome debugger’s profiler?
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Why use armeabi-v7a code over armeabi code?
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