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What is Hindley-Milner?
I encountered this term Hindley-Milner , and I'm not sure if grasp what it means.
3 Answers
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Why use symbols as hash keys in Ruby?
... basically "immutable strings" .. that means that they can not be changed, and it implies that the same symbol when referenced many times throughout your source code, is always stored as the same entity, e.g. has the same object id.
Strings on the other hand are mutable, they can be changed anytim...
Jquery bind double click and single click separately
...uery that would allow me to differentiate between behavior on double click and single click?
14 Answers
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Why are these constructs using pre and post-increment undefined behavior?
... can't predict the behavior when the code is run.
As far as I know, the standard doesn't explicitly say why the concept of undefined behavior exists. In my mind, it's simply because the language designers wanted there to be some leeway in the semantics, instead of i.e. requiring that all implementa...
Set UILabel line spacing
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Edit: Evidently NSAttributedString will do it, on iOS 6 and later. Instead of using an NSString to set the label's text, create an NSAttributedString, set attributes on it, then set it as the .attributedText on the label. The code you want will be something like this:
NSMutableAt...
Using openssl to get the certificate from a server
...certificate of a remote server, which I can then use to add to my keystore and use within my java application.
11 Answers
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How do I use valgrind to find memory leaks?
...un Valgrind
Not to insult the OP, but for those who come to this question and are still new to Linux—you might have to install Valgrind on your system.
sudo apt install valgrind # Ubuntu, Debian, etc.
sudo yum install valgrind # RHEL, CentOS, Fedora, etc.
Valgrind is readily usable for C/C++...
rgdal package installation
... >= 1.7.1 library
from http://trac.osgeo.org/gdal/wiki/DownloadSource and PROJ.4 (proj >= 4.4.9) from http://trac.osgeo.org/proj/; GDAL OSX frameworks built by William Kyngesburye at http://www.kyngchaos.com/ may be used for
source installs on OSX.
As you seem to be under Linux, you alwa...
Threading pool similar to the multiprocessing Pool?
...ool interface in the multiprocessing module, however it is hidden somewhat and not properly documented.
It can be imported via
from multiprocessing.pool import ThreadPool
It is implemented using a dummy Process class wrapping a python thread. This thread-based Process class can be found in mult...
How to click or tap on a TextView text
...a way to run a method on tapping or clicking a TextView line of text in an Android App.
8 Answers
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