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Measure time in Linux - time vs clock vs getrusage vs clock_gettime vs gettimeofday vs timespec_get?
... This clock wraps around once it tops out (this typically happens after ~2^32 ticks, which is not very long for a 1 MHz clock). man clock says that since glibc 2.18 it is implemented with clock_gettime(CLOCK_PROCESS_CPUTIME_ID, ...) in Linux.
clock_gettime(CLOCK_MONOTONIC, ...) provides nanosecond ...
SELECT * WHERE NOT EXISTS
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answered May 27 '09 at 13:19
QuassnoiQuassnoi
369k8181 gold badges571571 silver badges582582 bronze badges
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Search an Oracle database for tables with specific column names?
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edited Mar 3 '16 at 17:35
answered Dec 23 '09 at 15:06
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How to pass object with NSNotificationCenter
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236
You'll have to use the "userInfo" variant and pass a NSDictionary object that contains the mess...
Get data from file input in JQuery
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135
You can try the FileReader API. Do something like this:
<!DOCTYPE html>
<html>
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Remove all values within one list from another list? [duplicate]
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>>> a = range(1, 10)
>>> [x for x in a if x not in [2, 3, 7]]
[1, 4, 5, 6, 8, 9]
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Heroku Postgres - terminate hung query (idle in transaction)
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139
This is a general Postgres answer, and not specific to heroku
(The simple-stupid answer to t...
What is the meaning of “… …” token? i.e. double ellipsis operator on parameter pack
... worst pseudo-operator ever.
Edit: This does appear to be conformant. §8.3.5/3 describes one way to form the parameter list as
parameter-declaration-listopt ...opt
So the double-ellipsis is formed by a parameter-declaration-list ending with a parameter pack, followed by another ellipsis.
Th...
#ifdef #ifndef in Java
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edited Nov 8 '13 at 7:51
chiccodoro
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Using do block vs braces {}
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do..end syntax. Consider the following
two snippets of code:
1.upto 3 do |x|
puts x
end
1.upto 3 { |x| puts x }
# SyntaxError: compile error
Second example only works when parentheses is used, 1.upto(3) { |x| puts x }
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