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GLib compile error (ffi.h), but libffi is installed
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When compling libffi 3.0.9 from source code, the include/Makefile.in installs the includes in the ${PREFIX}/lib/libffi-3.0.9/include directory. I'm sure there's a WONDERFUL reason for that, but I'm annoyed by it.
This line fixes it, when compiling lib...
Get the creation date of a stash
... git stash list --date=relative. Worth noting is that the --date is coming from the git log command, not stash itself, see here for possible --date values: stackoverflow.com/questions/7853332/git-log-date-formats
– thnee
Oct 21 '14 at 15:09
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Is there a difference between single and double quotes in Java?
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And, of course, this behavior is borrowed from C (which probably got it somewhere else, I presume).
– JesperE
Jan 13 '09 at 16:01
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How to convert int to NSString?
... there may be slightly less overhead by avoiding the intermediate NSNumber from your code? @(myInt) is a boxed expression, it returns an NSNumber.
– Cœur
Apr 3 at 4:01
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How is the “greater than” or “>” character used in CSS?
...he pair with a,
as shown below:
div.resources > a{color: white;}
(from http://www.xml.com/pub/a/2003/06/18/css3-selectors.html)
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How to get a vertical geom_vline to an x-axis of class date?
... POSIXct and geom_vline , I could not get it done. I have a time series from and would like to draw a vertical line for years 1998, 2005 and 2010 for example. I tried with ggplot and qplot syntax, but still I either see no vertical line at all or the vertical line is drawn at the very first v...
The Ruby %r{ } expression
... variant ignores whitespace, making complex regexps more readable. Example from GitHub's Ruby style guide:
regexp = %r{
start # some text
\s # white space char
(group) # first group
(?:alt1|alt2) # some alternation
end
}x
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Ruby Metaprogramming: dynamic instance variable names
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You can also use send which prevents the user from setting non-existent instance variables:
def initialize(hash)
hash.each { |key, value| send("#{key}=", value) }
end
Use send when in your class there is a setter like attr_accessor for your instance variables:
clas...
npm failed to install time with make not found error
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Thanks a lot, after more than 2 years from this post. It saved my day !!
– Kousick Shanmugam Nagaraj
Nov 7 '17 at 17:58
1
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Is there a regular expression to detect a valid regular expression?
...t;)|\)(?<-N>))(?:(?:[?+*]|\{\d+(?:,\d*)?\})[?+]?)?|\|)*$(?(N)(?!))
From the comments:
Will this validate substitutions and translations?
It will validate just the regex part of substitutions and translations. s/<this part>/.../
It is not theoretically possible to match all va...