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How to create circle with Bézier curves?
...h, since this one has a max deviation of +0.027% and a min deviation of -0 vs the true circle. It's only ever bigger than the real circle the better improved approximation is done by moving C in by half of 0.027%. If you want the midpoints on the circle though, this is certainly the way to do it.
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How to get string width on Android?
.../954643
Also worth noting @arberg's reply below about the pixels painted vs the advance width ("number of pixels (in float) which the cursor should be advanced after drawing the given string"), in case you need to deal with that.
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Why use bzero over memset?
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Wanted to mention something about bzero vs. memset argument. Install ltrace and then compare what it does under the hood.
On Linux with libc6 (2.19-0ubuntu6.6), the calls made are exactly the same (via ltrace ./test123):
long m[] = {0}; // generates a call to mems...
What's the best practice for primary keys in tables?
...hese "primary key" can change for real world situations.
On surrogate vs natural key, I refer to the rules above. If the natural key is small and will never change it can be used as a primary key. If the natural key is large or likely to change I use surrogate keys. If there is no primary key I...
Is modern C++ becoming more prevalent? [closed]
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community wiki
5 revs, 5 users 73%JohnMcG
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How do I call setattr() on the current module?
...ct). I use vars() at module scope as it saves 3 characters, one syllable, vs its synonym-in-that-scope globals();-)
– Alex Martelli
May 29 '10 at 3:39
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Print function log /stack trace for entire program using firebug
...king for a way to compare function logs for when the program ran correctly vs when it did not.
– amccormack
Jan 12 '11 at 19:22
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Entity Framework rollback and remove bad migration
...e help command:
PM> get-help entityframework
Refreshing dastabase in VS2015 SQL Server Object Explorer, all of my data was preserved and the migration that I wanted to revert was gone :)
Initially I tried Remove-Migration by itself and found the error command confusing:
System.InvalidOper...
Why should a function have only one exit-point? [closed]
...Single entry and exit point was original concept of structured programming vs step by step Spaghetti Coding. There is a belief that multiple exit-point functions require more code since you have to do proper clean up of memory spaces allocated for variables. Consider a scenario where function alloca...
Get the full URL in PHP
...n and is not available for IPv6 according to kralyk.
Related:
HTTP_HOST vs. SERVER_NAME
Is Port Number Required in HTTP "Host" Header Parameter?
https://stackoverflow.com/a/28049503/175071
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