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Hash function that produces short hashes?
...llisions, but not as bad as simply truncating the digest.
Also, you could include the length of the original data as part of the result to make it more unique. For example, XORing the first half of an MD5 digest with the second half would result in 64 bits. Add 32 bits for the length of the data (o...
Python 3.x rounding behavior
...e Decimal.
All rounding options are available from the decimal module including
ROUND_CEILING, ROUND_DOWN, ROUND_FLOOR, ROUND_HALF_DOWN, ROUND_HALF_EVEN,
ROUND_HALF_UP, ROUND_UP, and ROUND_05UP.
examples:
>>> trueround(2.5, 0) == Decimal('3')
True
...
How to delete duplicate rows in SQL Server?
...s by a single column col1 because of the PARTITION BY col1. If you want to include multiple columns simply add them to the PARTITION BY:
ROW_NUMBER()OVER(PARTITION BY Col1, Col2, ... ORDER BY OrderColumn)
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Git: How to remove file from historical commit?
...is worked better for me than your exact steps listed above. Thank you for including the link to the Git Pro book as it was invaluable.
– dacke.geo
Nov 16 '15 at 16:53
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Effective method to hide email from spam bots
...
This is the method I used, with a server-side include, e.g. <!--#include file="emailObfuscator.include" --> where emailObfuscator.include contains the following:
<!-- // http://lists.evolt.org/archive/Week-of-Mon-20040202/154813.html -->
<script type="tex...
What generates the “text file busy” message in Unix?
...
Here's a super quick reproducer: echo -e '#include <unistd.h>\nint main(void){sleep (5);return 0;}' > slowprog.c && cc slowprog.c && cp a.out b.out && (./a.out &) ; sleep 1 && cp b.out a.out. Produced the error message "cp:...
How to correctly use the extern keyword in C
...a pitfall:
File stdio.h:
int errno;
/* other stuff...*/
myCFile1.c:
#include <stdio.h>
Code...
myCFile2.c:
#include <stdio.h>
Code...
If myCFile1.o and myCFile2.o are linked, each of the c files have separate copies of errno. This is a problem as the same errno is supposed...
How to export data as CSV format from SQL Server using sqlcmd?
... -Path "DimDate.csv" `
-Encoding UTF8
SQL Server 2016 includes the SqlServer module, which contains the Invoke-Sqlcmd cmdlet, which you'll have even if you just install SSMS 2016. Prior to that, SQL Server 2012 included the old SQLPS module, which would change the current direct...
Better way of getting time in milliseconds in javascript?
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Welcome to Stack Overflow! You might want to include a short explanation of what requestAnimationFrame does that stops this "jumping" as described in the question. Thanks!
– Qantas 94 Heavy
Apr 12 '14 at 1:12
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android fragment- How to save states of views in a fragment when another fragment is pushed on top o
...nceState() was never get called. Just save your own data to the argument, including the items in the list view or just their IDs (if you have other centralize data manager). No need to save list view's position - that was saved and restore automatically.
– John Pang
...