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What is the most effective way for float and double comparison?
What would be the most efficient way to compare two double or two float values?
31 Answers
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What is the difference between 'my' and 'our' in Perl?
I know what my is in Perl. It defines a variable that exists only in the scope of the block in which it is defined. What does our do?
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How to colorize diff on the command line?
...splays the escape sequences for colors correctly.
– daniel kullmann
Jan 10 '12 at 9:25
35
Can jus...
What special characters must be escaped in regular expressions?
...BRE), these are metacharacters that you need to escape to suppress their meaning:
.^$*[\
Escaping parentheses and curly brackets in BREs gives them the special meaning their unescaped versions have in EREs. Some implementations (e.g. GNU) also give special meaning to other characters when escape...
How to timeout a thread
... but that's a lot of code. My point is that there's no general-purpose mechanism for this; you have to understand the interruption policy of the task.
– erickson
Jul 30 '13 at 23:38
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How do I merge changes to a single file, rather than merging commits?
I have two branches (A and B) and I want to merge a single file from branch A with a corresponding single file from Branch B.
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How to pattern match using regular expression in Scala?
...0 }
res38: Int = 25
It is also possible to set more detailed binding mechanisms:
scala> object Doubler { def unapply(s: String) = Some(s.toInt*2) }
defined module Doubler
scala> "10" match { case r"(\d\d)${Doubler(d)}" => d case _ => 0 }
res40: Int = 20
scala> object isPositive {...
Adding a directory to the PATH environment variable in Windows
...le (no paths at all or delete all paths in it), type:
PATH ;
Update
Like Danial Wilson noted in comment below, it sets the path only in the current session. To set the path permanently, use setx but be aware, although that sets the path permanently, but not in the current session, so you have to st...
NoClassDefFoundError: android.support.v7.internal.view.menu.MenuBuilder
There is an issue with the Android appcompat v7 library on Samsung devices running Android 4.2. I keep getting crashes with the following stack trace in my Developer Console:
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Is “for(;;)” faster than “while (TRUE)”? If not, why do people use it?
...h respect to while(1) or while(true) or while(!0), and has philosophical meaning. I suppose for(;;) is parsed faster than the others anyway
– ShinTakezou
Jun 10 '10 at 12:21
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