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How to get string width on Android?
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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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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...
Convert a RGB Color Value to a Hexadecimal String
...pital X's if you want your resulting hex-digits to be capitalized (#FFFFFF vs. #ffffff).
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How do I 'overwrite', rather than 'merge', a branch on another branch in Git?
...is. Here's a small example to show the two results from using the strategy vs the strategy option. I also recommend reading the question and answers of (Git Merging) When to use 'ours' strategy, 'ours' option and 'theirs' option?
First, setup a repository with 2 branches and 3 commits (1 base commit...
UIView frame, bounds and center
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community wiki
14 revs, 3 users 91%Lorenzo Boaro
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Shorter syntax for casting from a List to a List?
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Also, it's not a reference vs. value type thing. I just tried it with a base class of 'Thing' and two derived classes: 'Person', and 'Animal'. When I do the same thing with it I get: "Unable to cast object of type 'Animal' to type 'Person'." So it's de...