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Magic number in boost::hash_combine
...umber is supposed to be 32 random bits, where each is equally likely to be 0 or 1, and with no simple correlation between the bits. A common way to find a string of such bits is to use the binary expansion of an irrational number; in this case, that number is the reciprocal of the golden ratio:
phi...
Renaming or copying files and folder using NERDTree on Vim. Is it possible?
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edited Sep 22 '11 at 4:40
Jeremy Mack
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answered...
Get pandas.read_csv to read empty values as empty string instead of nan
...d an option of some sort here:
https://github.com/pydata/pandas/issues/1450
In the meantime, result.fillna('') should do what you want
EDIT: in the development version (to be 0.8.0 final) if you specify an empty list of na_values, empty strings will stay empty strings in the result
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Using pg_dump to only get insert statements from one table within database
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if version < 8.4.0
pg_dump -D -t <table> <database>
Add -a before the -t if you only want the INSERTs, without the CREATE TABLE etc to set up the table in the first place.
version >= 8.4.0
pg_dump --column-inserts --da...
How to use git bisect?
...ression. Imagine that you have the following development history:
... --- 0 --- 1 --- 2 --- 3 --- 4* --- 5 --- current
You know that your program is not working properly at the current revision, and that it was working at the revision 0. So the regression was likely introduced in one of the commi...
Multiline for WPF TextBox
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WonderWorker
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answered Apr 16 '10 at 2:47
itowlsonitowlson
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How exactly does a generator comprehension work?
... # notice it's a generator object
<generator object <genexpr> at 0x7f2ad75f89e0>
>>> len(filtered_gen) # So technically, it has no length
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: object of type 'generator' has no len()
>...
Increment a database field by 1
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answered May 4 '10 at 4:41
SampsonSampson
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Where is logback encoder pattern documentation
...il Bourque
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answered Oct 7 '10 at 11:46
anirvananirvan
4,50733 gold ba...
JavaScript hard refresh of current page
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305
Try to use:
location.reload(true);
When this method receives a true value as argument, it wi...