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How to hash a string into 8 digits?
...8097614L
>>> # Use hash()
>>> abs(hash(s)) % (10 ** 8)
82148974
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ADO.NET DataRow - check for column existence
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ERROR: permission denied for sequence cities_id_seq using Postgres
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Since PostgreSQL 8.2 you have to use:
GRANT USAGE, SELECT ON SEQUENCE cities_id_seq TO www;
GRANT USAGE - For sequences, this privilege allows the use of the currval and nextval functions.
Also as pointed out by @epic_fil in the comments yo...
SVG Positioning
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Everything in the g element is positioned relative to the current transform matrix.
To move t...
Which kind of pointer do I use when?
...ss template auto_ptr is deprecated. [ Note: The class template unique_ptr (20.7.1) provides a better solution. —end note ]
No ownership:
Use dumb pointers (raw pointers) or references for non-owning references to resources and when you know that the resource will outlive the referencing object /...
Creating my own Iterators
...ors. I have written an article about this very topic; it's in the December 2008 ACCU magazine. It discusses an (IMO) elegant solution for exactly your problem: exposing member collections from an object, using Boost.Iterators.
If you want to use the stl only, the Josuttis book has a chapter on impl...
Redis: possible to expire an element in an array or sorted set?
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edited Sep 21 '15 at 15:18
Andres
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Can git automatically switch between spaces and tabs?
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edited Aug 22 '14 at 10:29
Marco de Jongh
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Filter dataframe rows if value in column is in a set list of values [duplicate]
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edited Feb 25 at 0:45
Harvey
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answe...