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How is “int* ptr = int()” value initialization not illegal?
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@NeilG: This stays the same in C++11, though there is now also a nullptr, which you can use instead of 0 or NULL in new code.
– Jerry Coffin
Nov 9 '11 at 23:02
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How to concatenate two strings in C++?
...td::string greet = s + " World"; //concatenation easy!
Easy, isn't it?
Now if you need char const * for some reason, such as when you want to pass to some function, then you can do this:
some_c_api(s.c_str(), s.size());
assuming this function is declared as:
some_c_api(char const *input, si...
What happens to my apps after my developer account membership expires? [closed]
...s just experienced the same thing. They forgot to renew their account, and now the app is no longer available on the app store! Hope the app is still available on the provisioning portal.
– ultravelocity
Jun 7 '11 at 1:57
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python pandas: apply a function with arguments to a series
...andas do allow you to pass extra arguments (see the new documentation). So now you can do:
my_series.apply(your_function, args=(2,3,4), extra_kw=1)
The positional arguments are added after the element of the series.
For older version of pandas:
The documentation explains this clearly. The app...
make_unique and perfect forwarding
...on that is identical with the one given by the OP.
Edit: std::make_unique now is part of C++14.
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Understanding generators in Python
...u do not look into until you understand the basic concept of a generator.
Now you may ask: why use generators? There are a couple of good reasons:
Certain concepts can be described much more succinctly using generators.
Instead of creating a function which returns a list of values, one can write ...
use localStorage across subdomains
...afari 7+ both on desktop and mobile to block 3rd party data. The option is now called "Block cookies and other website data" which refers to things like localstorage which are now completely isolated by domain. This method wont work in Safari
– Aranganathan
Jul...
How can I check for NaN values?
...still in common use - and math.isnan was not part of the standard library. Now days I'm really hoping that's not the case in many places!
– mavnn
Mar 30 '15 at 7:30
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How do I resolve the “java.net.BindException: Address already in use: JVM_Bind” error?
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If you know what port the process is running you can type:
lsof -i:<port>.
For instance, lsof -i:8080, to list the process (pid) running on port 8080.
Then kill the process with kill <pid>
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Bash: Strip trailing linebreak from output
... My up-vote is for the head -c ... version -- Because I can now feed commands to the clipboard and preserve formatting, but for the last \n. Eg.: alias clip="head -c -1 | xclip -selection clipboard", not too shabby. Now when you pipe ls -l | clip ... All that wonderful output goes ...