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How expensive is RTTI?
...tions won't work).
[1] Known as the Itanium C++ ABI, documented at http://www.codesourcery.com/public/cxx-abi/abi.html. The names are horribly confusing: the name refers to the original development architecture, though the ABI specification works on lots of architectures including i686/x86_64. Comm...
Get Root Directory Path of a PHP project
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if your root directory path is in the form of /var/public/www" then using this method the first string in the array will be empty (0)/(1)/(2)/(3). the root will be the second string $pathInPieces[1]
– tbradley22
May 11 '13 at 2:04
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The requested operation cannot be performed on a file with a user-mapped section open
...which application is locking your output file with OpenedFilesView:
http://www.nirsoft.net/utils/opened_files_view.html
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How to use if-else option in JSTL
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you have to use this code:
with <%@ taglib prefix="c" uri="http://www.springframework.org/tags/form"%>
and
<c:select>
<option value="RCV"
${records[0].getDirection() == 'RCV' ? 'selected="true"' : ''}>
<spring:message code="dro...
What are differences between AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion?
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Rémy van DuijkerenRémy van Duijkeren
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Are Exceptions in C++ really slow
...t trivial compared to pure CPU code.
Note: for more details, read the TR18015 report, chapter 5.4 Exception Handling (pdf)
So, yes, exceptions are slow on the exceptional path, but they are otherwise quicker than explicit checks (if strategy) in general.
Note: Andrei Alexandrescu seems to questio...
std::function vs template
...ecreases to approximately 1860ms.
I wrote about that a while ago:
http://www.drdobbs.com/cpp/efficient-use-of-lambda-expressions-and/232500059
As I said in the article, the arguments don't quite apply for VS2010 due to its poor support to C++11. At the time of the writing, only a beta version of ...
How do I install Python packages on Windows?
...ides binaries for popular Python packages for all Windows platforms http://www.lfd.uci.edu/~gohlke/pythonlibs/
In fact, building som
Read values into a shell variable from a pipe
... read doesn't bother with input from a pipe - it's undefined.
FYI, http://www.etalabs.net/sh_tricks.html is a nifty collection of the cruft necessary to fight the oddities and incompatibilities of bourne shells, sh.
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How do I copy to the clipboard in JavaScript?
...clipboard.writeText]
Text-focused portion available in Chrome 66 (March 2018)
Access is asynchronous and uses JavaScript Promises, can be written so security user prompts (if displayed) don't interrupt the JavaScript in page.
Text can be copied to the clipboard directly from a variable.
Only suppo...