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Why are Objective-C delegates usually given the property assign instead of retain?
... environment. I'm mostly concerned with a non-GC based environment (eg: iPhone).
4 Answers
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Symbolic links and synced folders in Vagrant
...s to be wrong with their default value for rsync__args (specifically, that one of the default args, --copy-links, seems to be breaking another, --archive, at least as far as copying broken symlinks is concerned).
share
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Python argparse: How to insert newline in the help text?
I'm using argparse in Python 2.7 for parsing input options. One of my options is a multiple choice. I want to make a list in its help text, e.g.
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What is
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It means that T must implement Comparable<T itself or one of T's superclasses>
The sense is that because SortedList is sorted, it must know how to compare two classes of its generics T parameter. That's why T must implement Comparable<T itself or one of T's superclasses>...
How do I install Maven with Yum?
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just replace the path you pass to wget with one you get from maven.apache.org/download.cgi
– Ali
Mar 11 '14 at 15:18
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Why is  appearing in my HTML? [duplicate]
...o tell if you're using an editor that displays actual unicode characters.
One option is to open the file in a very basic text editor that doesn't understand unicode, or one that understands it but has the ability to display any non-ascii characters using their actual codes.
Once you locate it, you...
PostgreSQL delete all content
...d in several ways.
Deleting table content using sql:
Deleting content of one table:
TRUNCATE table_name;
DELETE FROM table_name;
Deleting content of all named tables:
TRUNCATE table_a, table_b, …, table_z;
Deleting content of named tables and tables that reference to them (I will explain i...
How To Create a Flexible Plug-In Architecture?
...ot an answer as much as a bunch of potentially useful remarks/examples.
One effective way to make your application extensible is to expose its internals as a scripting language and write all the top level stuff in that language. This makes it quite modifiable and practically future proof (if your...
How do I uniquely identify computers visiting my web site?
...rmation that they will transmit to websites upon request. We
implemented one possible fingerprinting algorithm, and collected these
fingerprints from a large sample of browsers that visited our test side,
panopticlick.eff.org. We observe that the distribution of our finger-
print contains ...
What is string_view?
...which only a non-mutating view is required. The string_view in question is one such proposal; there were earlier ones called string_ref and array_ref, too.
The idea is always to store a pair of pointer-to-first-element and size of some existing data array or string.
Such a view-handle class could ...