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Efficient string concatenation in C++
...ly will have much better efficiency simply by using operator += instead.
Now after that disclaimer, I will answer your actual question...
The efficiency of the STL string class depends on the implementation of STL you are using.
You could guarantee efficiency and have greater control yourself by...
Detect encoding and make everything UTF-8
...sses all this issues. It´s called Encoding::toUTF8().
You don't need to know what the encoding of your strings is. It can be Latin1 (ISO 8859-1), Windows-1252 or UTF-8, or the string can have a mix of them. Encoding::toUTF8() will convert everything to UTF-8.
I did it because a service was giving...
How do I simulate a hover with a touch in touch enabled browsers?
... removed touchend and preventDefault() in my website and it works good but now menus doesn't automatically closed by tap out of target.
– Даниил Пронин
May 26 '14 at 11:05
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how do I make a single legend for many subplots with matplotlib?
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I know the lines which I want to put in the legend, but how do I get the lines variable to put in the argument for legend ?
– patapouf_ai
Apr 10 '17 at 12:51
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How to get year/month/day from a date object?
...levithan.com/archives/date-time-format.
With that you could write:
var now = new Date();
now.format("yyyy/mm/dd");
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How do you make a HTTP request with C++?
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Update 2020: I have a new answer that replaces this, now 8-years-old, one: https://stackoverflow.com/a/61177330/278976
On Linux, I tried cpp-netlib, libcurl, curlpp, urdl, boost::asio and considered Qt (but turned it down based on the license). All of these were either incompl...
error: Unable to find vcvarsall.bat
...:\Python26\Lib\distutils\distutils.cfg to be:
[build]
compiler=mingw32
Now run easy_install.exe amara.
Make sure environment is set by opening a new cmd.exe.
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How to parse XML in Bash?
...call will return a non-zero status because we've reached the end of file.
Now his while loop cleaned up a bit to match the above:
while read_dom; do
if [[ $ENTITY = "title" ]]; then
echo $CONTENT
exit
fi
done < xhtmlfile.xhtml > titleOfXHTMLPage.txt
The first line j...
Difference between and
...1e8a1f6
OK, this is the expected output. But this is "old style" Spring. Now we have annotations so lets use those to simplify the XML.
First, lets autowire the bbb and ccc properties on bean A like so:
package com.yyy;
import org.springframework.beans.factory.annotation.Autowired;
import com.xx...
How to work with Git branches and Rails migrations
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@pisaruk I know you answered this six years ago, but reading I'm curious what an example of a non-reversible migration would be. I'm having a hard time imagining a situation. I guess the simplest would be a dropped column containing a ...