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techniques for obscuring sensitive strings in C++
...tion (a symmetric encryption key that I want to keep private) in my C++ application. The simple approach is to do this:
14 ...
Only one expression can be specified in the select list when the subquery is not introduced with EXI
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It doesn't helped me. Gives me the same error. Specifying the column instead of * helped me.
– Mohammedsalim Shivani
Sep 3 '18 at 15:47
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Why does integer division in C# return an integer and not a float?
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If you do the following:
int x = 13f / 4f;
You'll receive a compiler error, since a floating-point division (the / operator of 13f) results in a float, which cannot be cast to int implicitly.
If you want the division to be a floating-point division, you'll have to make the result a float:
fl...
How to split text without spaces into list of words?
...sick ?
– RetroCode
Sep 22 '16 at 19:05
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This is excellent. I've turned it into a pip package: p...
select * vs select column
If I just need 2/3 columns and I query SELECT * instead of providing those columns in select query, is there any performance degradation regarding more/less I/O or memory?
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Why can't I forward-declare a class in a namespace using double colons?
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Does PostgreSQL support “accent insensitive” collations?
...nstall once per database with:
CREATE EXTENSION unaccent;
If you get an error like:
ERROR: could not open extension control file
"/usr/share/postgresql/<version>/extension/unaccent.control": No such file or directory
Install the contrib package on your database server like instructed i...
In Python, using argparse, allow only positive integers
...lue = int(value)
if ivalue <= 0:
raise argparse.ArgumentTypeError("%s is an invalid positive int value" % value)
return ivalue
parser = argparse.ArgumentParser(...)
parser.add_argument('foo', type=check_positive)
This is basically just an adapted example from the perfect_square...
Why can't an anonymous method be assigned to var?
...e the code to detect all of those failure situations and give a meaningful error message for each. We still have to specify all that behaviour, document it, write tests for it, and so on. This is a very expensive feature that saves the user maybe half a dozen keystrokes. We have better ways to add ...
How to keep the local file or the remote file during merge using Git and the command line?
...ge modification using vimdiff, but, assuming I just know that the entire file is good to keep or to throw away, how do I do that?
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