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Where do “pure virtual function call” crashes come from?
...lightly wrong: a pure virtual function may still be defined, see Wikipedia for details. Correct phrasing: might not exist
– MSalters
Sep 19 '08 at 10:46
5
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Can I use Objective-C blocks as properties?
...
{
// need to release the block since the property was declared copy. (for heap
// allocated blocks this prevents a potential leak, for compiler-optimized
// stack blocks it is a no-op)
// Note that for ARC, this is unnecessary, as with all properties, the memory management is handled ...
Best practice: PHP Magic Methods __set and __get [duplicate]
...
I have been exactly in your case in the past. And I went for magic methods.
This was a mistake, the last part of your question says it all :
this is slower (than getters/setters)
there is no auto-completion (and this is a major problem actually), and type management by the IDE f...
How to import multiple .csv files at once?
...ou could do the following with assign:
temp = list.files(pattern="*.csv")
for (i in 1:length(temp)) assign(temp[i], read.csv(temp[i]))
Or, without assign, and to demonstrate (1) how the file name can be cleaned up and (2) show how to use list2env, you can try the following:
temp = list.files(pat...
Is there a way to crack the password on an Excel VBA Project?
...y this direct VBA approach which doesn't require HEX editing. It will work for any files (*.xls, *.xlsm, *.xlam ...).
Tested and works on:
Excel 2007
Excel 2010
Excel 2013 - 32 bit version
Excel 2016 - 32 bit version
Looking for 64 bit version? See this answer
How it works
I...
Python Requests and persistent sessions
... 0.10.0 with Python 2.5).
I have figured out how to submit data to a login form on a website and retrieve the session key, but I can't see an obvious way to use this session key in subsequent requests.
Can someone fill in the ellipsis in the code below or suggest another approach?
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Converting integer to string in Python
...0a2" non working code: print "".join([ str(ord(c)) if (c.isalpha()) else c for c in s ]) working code: print "".join([ ord(c).__str__() if (c.isalpha()) else c for c in s ]) Expected output: 14.2.2.10972
– Jayant
May 7 at 5:49
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Python unittest - opposite of assertRaises?
...act. The solution proposed by user9876 is conceptually flawed: if you test for the non-raising of say ValueError, but ValueError is instead raised, your test must exit with a failure condition, not an error one. On the other hand, if in running the same code you would raise a KeyError, that would be...
How to use the pass statement?
...ly don't think this properly answers the question. Citing one possible use for something, even if it is the most common use for it, is not the same as explaining what it is for.
– Schilcote
Mar 15 '14 at 17:47
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How can I create a unique constraint on my column (SQL Server 2008 R2)?
...h the GUI:
Make sure your column does not violate the unique constraint before you begin.
Open SQL Server Management Studio.
Right click your Table, click "Design".
Right click the column you want to edit, a popup menu appears, click Indexes/Keys.
Click the "Add" Button.
Expand the "General" tab....