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What's the meaning of exception code “EXC_I386_GPFLT”?
...of the address aren't all copies of the top of the lower 48 bits (in other words, the top 16 bits of an address should all be 0 or all 1, based on the bit just below 16 bits). This rule is in place to guarantee that the architecture can "safely expand the number of valid bits in the address range". ...
What is the difference between Ruby 1.8 and Ruby 1.9
... When Statements
Ruby 1.9
irb(main):001:0> case 'a'; when /\w/: puts 'word'; end
SyntaxError: (irb):1: syntax error, unexpected ':',
expecting keyword_then or ',' or ';' or '\n'
Ruby 1.8.6
irb(main):001:0> case 'a'; when /\w/: puts 'word'; end
word
Action: Use semicolon, then, or newlin...
A Space between Inline-Block List Items [duplicate]
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Actually it's due to word spacing, hence the 4px is dependent on the font setting. See jsfiddle.net/Cerebrl/Wt4hP
– thomaux
Jun 13 '12 at 11:44
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Is there a [Go to file…]?
...⌃ + I
Navigate to the beginning or end of line: ⌘ + ← | →
Navigate word by word left or right of line: ⌥ + ← | →
Bring up possible auto-completion choices: esc
Jump To definition: ⌘ + Click
Put a breakpoint to a line: ⌘ + \
Move line up or down: ⌘ + ⌥ + [ | ]
Find in File: ⌘ ...
Reminder - \r\n or \n\r?
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I'd use the word 'return' to remember, the r comes before the n.
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Split output of command by columns using Bash?
...t line (example for line no. 6) is done with head and tail and the correct word (word no. 4) can be captured with awk:
command|head -n 6|tail -n 1|awk '{print $4}'
How to change column datatype in SQL database without losing data
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In other words: NULL remains NULL, 0 becomes False, non-zero values (1, -1, 1999, -987...) become True.
– Álvaro González
Feb 14 '14 at 12:44
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How to get current relative directory of your Makefile?
... for Makefiles invoked from any directory:
mkfile_path := $(abspath $(lastword $(MAKEFILE_LIST)))
current_dir := $(notdir $(patsubst %/,%,$(dir $(mkfile_path))))
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Regex - how to match everything except a particular pattern
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If you want to match a word A in a string and not to match a word B. For example:
If you have a text:
1. I have a two pets - dog and a cat
2. I have a pet - dog
If you want to search for lines of text that HAVE a dog for a pet and DOESN'T have c...
Swift - which types to use? NSString or String
...Int data type is stated, in the book, to be the same as the architecture's word size. NSInteger is also the same size as the word size of the architecture.
– MaddTheSane
Jun 5 '14 at 5:35
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