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Large Object Heap Fragmentation
...se allocated size is a multiple of 8 bytes would probably be a performance win. Otherwise, while performance of a heavily-used double[] that's cache-aligned would be better than that of one that isn't, I don't know why size would correlate with usage.
– supercat
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Explanation of JSONB introduced by PostgreSQL
...storage «as is»
jsonb: no whitespaces
jsonb: no duplicate keys, last key win
jsonb: keys are sorted
More in speech video and slide show presentation by jsonb developers. Also they introduced JsQuery, pg.extension provides powerful jsonb query language
...
X-Frame-Options Allow-From multiple domains
...ame-ancestors 'self' example.com *.example.net ;
Unfortunately, for now, Internet Explorer does not fully support Content-Security-Policy.
UPDATE: MDN has removed their deprecation comment. Here's a similar comment from W3C's Content Security Policy Level
The frame-ancestors directive obsole...
Python __call__ special method practical example
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@delnan: This is not intended to be shortest. No one wins at code golf. It's intended to show __call__, be simple and nothing more.
– S.Lott
Apr 28 '11 at 21:06
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Change default global installation directory for node.js modules in Windows?
In my windows installation PATH includes C:\Program Files\nodejs , where executable node.exe is. I'm able to launch node from the shell, as well as npm . I'd like new executables to be installed in C:\Program Files\nodejs as well, but it seems impossible to achieve.
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how to install gcc on windows 7 machine?
I have MinGW on my windows 7 machine. I wish to install and use complete gcc for C compiler. I found there is no single pre-compiled ready-made installation file for this purpose. I checked the following page : http://gcc.gnu.org/install/
It is difficult and I find it above my level of understandi...
What is the fastest way to compute sin and cos together?
...ng of compiler flags for this to work, but:
$ gcc --version
i686-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5488)
Copyright (C) 2005 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS...
What exactly does an #if 0 … #endif block do?
...n. According to your explanation it would not be possible to say e.g. #if WIN32 || __CYGWIN__ but this does work as expected.
– Ben Voigt
May 17 '10 at 22:17
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How to get relative path from absolute path
... solution is simply to return the full absolute target path instead of throwing that exception.
– Nyerguds
Feb 4 '16 at 20:31
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Why does volatile exist?
...eration.
For example, this is how InterlockedIncrement is declared in the Win32 API:
LONG __cdecl InterlockedIncrement(
__inout LONG volatile *Addend
);
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