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How does IPython's magic %paste work?
...er: enter %paste
Otherwise: enter %cpaste
Paste (Ctrl-V) and hit enter.
Then type -- and hit enter.
For example:
In [1]: %cpaste
Pasting code; enter '--' alone on the line to stop or use Ctrl-D.
:for l in "Hello World":
: print l,
:--
H e l l o W o r l d
...
What is the most efficient way to store tags in a database?
...ue, have a 3rd table Tags(Tag_Id, Title) to store the text for the tag and then change your Tags table to be (Tag_Id, Item_Id). Those two values should provide a unique composite primary key as well.
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What is the exact meaning of IFS=$'\n'?
.... To get the same effect in a POSIX-compliant manner, you can type IFS=', then hit return to type an actual newline character, then type the closing '
– Richard Hansen
Jun 21 '11 at 16:52
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The thread has exited with code 0 (0x0) with no unhandled exception
...t display this message if you don't want it...
If the above does not help then please provide more details since I am not sure what exactly the problem is you face...
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How to emulate C array initialization “int arr[] = { e1, e2, e3, … }” behaviour with std::array?
...make_array(1, 2, 3);
However, this requires the compiler to do NRVO, and then also skip the copy of returned value (which is also legal but not required). In practice, I would expect any C++ compiler to be able to optimize that such that it's as fast as direct initialization.
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How to change highlighted occurrences color in Eclipse's sidebar?
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Well, if they weren't the same, then it would be a lot less obvious what the color on the right corresponded to in the code. It probably didn't even occur to the eclipse guys to let them be different.
– Jonathan M Davis
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@Basic(optional = false) vs @Column(nullable = false) in JPA
...tabase columns.
If an implementation chooses to
implement optional then those
properties should be evaluated in
memory by the Persistence Provider and
an exception raised before SQL is sent
to the database otherwise when using
'updatable=false' 'optional'
violations would never b...
Understand convertRect:toView:, convertRect:FromView:, convertPoint:toView: and convertPoint:fromVie
...p left of the screen in iOS.
If you add a subview at 20,30 to this view, then a point at 0,0 in the subview corresponds to a point at 20,30 in the superview. This conversion is what those methods are doing.
Your example above is pointless (no pun intended) since it converts a point from a view t...
What is a “cache-friendly” code?
...variables) infrequently. If the processor can't find the data in L1 cache, then it looks in L2 cache. If not there, then L3 cache, and if not there, main memory. Each of these "misses" is expensive in time.
(The analogy is cache memory is to system memory, as system memory is too hard disk storage. ...
Java switch statement multiple cases
... long run. If you need to place comments in your code to make it readable, then you did something wrong IMHO.
– kraxor
Jul 4 '14 at 8:12
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