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Creating an abstract class in Objective-C
...NSInvalidAbstractInvocation(). Calling an abstract method is a programming error, which is why it throws an exception. Abstract factories are commonly implemented as class clusters.
– quellish
Aug 2 '14 at 23:40
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C Macro definition to determine big endian or little endian machine?
...H
#include <limits.h>
#include <stdint.h>
#if CHAR_BIT != 8
#error "unsupported char size"
#endif
enum
{
O32_LITTLE_ENDIAN = 0x03020100ul,
O32_BIG_ENDIAN = 0x00010203ul,
O32_PDP_ENDIAN = 0x01000302ul, /* DEC PDP-11 (aka ENDIAN_LITTLE_WORD) */
O32_HONEYWELL_ENDIAN ...
Secondary axis with twinx(): how to add to legend?
...is..
ax1.legend(loc = (.75,.1), frameon = False)
ax2.legend( loc = (.75, .05), frameon = False)
Where the loc tuple is left-to-right and bottom-to-top percentages that represent the location in the chart.
share
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Vim Insert Mode on Mac OS X
... a loss.
– Preston
Oct 14 '13 at 18:05
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show 1 more comment
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Automatically create an Enum based on values in a database lookup table?
...it this way. You loose your compile time checks and become prone to typing errors. All benefits of enums gone. You could introduce string constants, but then you are back where you started.
– Daniel Brückner
Apr 7 '09 at 11:10
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How to recursively find and list the latest modified files in a directory with subdirectories and ti
...made the following changes (to the 'fast' one) so I didn't have to see the errors in my final output. find ${1} -type f | xargs stat --format '%Y :%y %n' 2>/dev/null | sort -nr | cut -d: -f2-
– TJ L
Dec 14 '12 at 14:13
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git clone from another directory
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It's as easy as it looks.
14:27:05 ~$ mkdir gittests
14:27:11 ~$ cd gittests/
14:27:13 ~/gittests$ mkdir localrepo
14:27:20 ~/gittests$ cd localrepo/
14:27:21 ~/gittests/localrepo$ git init
Initialized empty Git repository in /home/andwed/gittests/localrepo...
How to check permissions of a specific directory?
I know that using ls -l "directory/directory/filename" tells me the permissions of a file. How do I do the same on a directory?
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Short description of the scoping rules?
...ithout explicit declaration, but writing to it without declaring global(var_name) will instead create a new local instance.
– Peter Gibson
Jun 27 '12 at 5:53
12
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How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L
Since setting up my development environments on Mac OS X Lion (brand new macbook air purchased in January 2012), I have noticed that resolving to a virtual host is very slow (around 3 seconds) the first time but after that is fast as long as I continue loading it regularly.
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