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How to initialize const member variable in a class?
...s explanation sums it up briefly:
A class is typically declared in a header file and a header file is typically included into many translation units. However, to avoid complicated linker rules, C++ requires that every object has a unique definition. That rule would be broken if C++ allowed in-cl...
Android Activity as a dialog
...or AppCompat theme), you'll need to use @style/Theme.AppCompat.Dialog instead.
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How to run a single RSpec test?
...ble but there is an Rspec configuration for run filtering - so now you can add this to your spec_helper.rb:
RSpec.configure do |config|
config.filter_run_when_matching :focus
end
And then add a focus tag to the it, context or describe to run only that block:
it 'runs a test', :focus do
...te...
Detecting when user scrolls to bottom of div with jQuery
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Dr.MolleDr.Molle
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Pros and cons of using sbt vs maven in Scala project [closed]
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J.Olufsen
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answered Jul 1 '12 at 3:08
mblinnmblinn
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DbEntityValidationException - How can I easily tell what caused the error?
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Leniel Maccaferri
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answered Apr 4 '13 at 19:54
Martin DevillersMartin Devi...
C/C++ line number
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Julien HoarauJulien Hoarau
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Remove empty array elements
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BoltClock♦BoltClock
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Haversine Formula in Python (Bearing and Distance between two GPS points)
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Here's a Python version:
from math import radians, cos, sin, asin, sqrt
def haversine(lon1, lat1, lon2, lat2):
"""
Calculate the great circle distance between two points
on the earth (specified in decimal degrees)
"""
# convert decimal degrees to...
UITableViewCell subview disappears when cell is selected
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Søren Mortensen
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answered Dec 31 '14 at 7:14
Yatheesha B LYatheesha B L
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