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How come a non-const reference cannot bind to a temporary object?
...
From this Visual C++ blog article about rvalue references:
... C++ doesn't want you to accidentally
modify temporaries, but directly
calling a non-const member function on
a modifiable rvalue is explicit, so
it's ...
Why can't I have “public static const string S = ”stuff"; in my Class?
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From the C# language specification (PDF page 287 - or 300th page of the PDF):
Even though constants are considered
static members, a constant
declaration neither requires nor
allows a static modifier.
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Checking to see if one array's elements are in another array in PHP
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From the page you linked to: "Prior to PHP 5.5, empty() only supports variables; anything else will result in a parse error. In other words, the following will not work: empty(trim($name)). Instead, use trim($name) == false."...
Else clause on Python while statement
...dition becomes false." The wording here implies that your while state goes from a state of true to false and than the else will be executed. However, if the while is never true, the else clause will still be executed.
– user597608
Oct 10 '14 at 21:11
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Vagrant ssh authentication failure
...0.1'
If still does not work try this:
Remove insecure_private_key file from c:\Users\USERNAME\.vagrant.d\insecure_private_key
Run vagrant up (vagrant will be generate a new insecure_private_key file)
In other cases, it is helpful to just set forward_agent in Vagrantfile:
Vagrant::Config.run d...
How to remove line breaks (no characters!) from the string?
...o use PHP trim
This function returns a string with whitespace stripped from the beginning and end of str. Without the second parameter, trim() will strip these characters:
" " (ASCII 32 (0x20)), an ordinary space.
"\t" (ASCII 9 (0x09)), a tab.
"\n" (ASCII 10 (0x0A)), a new line (line...
Which is faster: Stack allocation or Heap allocation
...o the kernel which needs to do some work to allocate the memory(or load it from swap, in worst case).
– nos
Aug 17 '10 at 20:41
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How to clear the interpreter console?
...pr__(self):
return '\n'*1000
wipe = Wipe()
Then you can do this from the interpreter all you like :)
>>> from wiper import wipe
>>> wipe
>>> wipe
>>> wipe
share
|
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ViewPager and fragments — what's the right way to store fragment's state?
...r.instantiateItem(View, int) and save a reference to the fragment returned from the super call before returning it (it has the logic to find the fragment, if already present).
For a fuller picture, have a look at some of the source of FragmentPagerAdapter (short) and ViewPager (long).
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Create nice column output in python
...ig difference with one or the other, just a matter of taste I'd say. Apart from that, as you noticed, that line is a bit (too) confused. It would be better to do it directly: max(len(x) for sub in data for x in sub), that also doesn't build unnecessary lists.
– Rik Poggi
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