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Solving “Who owns the Zebra” programmatically?
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One poster already mentioned that Prolog is a potential solution. This is true, and it's the solution I would use. In more general terms, this is a perfect problem for an automated inference system. Prolog is a logic progr...
Explanation of strong and weak storage in iOS5
...to it. Even if weak pointers point to it, once the last strong pointer is gone, the object will be deallocated, and all remaining weak pointers will be zeroed out.
Perhaps an example is in order.
Imagine our object is a dog, and that the dog wants to run away (be deallocated).
Strong pointers are...
receiving error: 'Error: SSL Error: SELF_SIGNED_CERT_IN_CHAIN' while using npm
... also guarantees that you are talking to the real registry.npmjs.org . Someone could potentially install malicious packages.
– adotout
Jan 13 '14 at 12:46
60
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How can I check if a program exists from a Bash script?
...t or even hook into the package manager.
So, don't use which. Instead use one of these:
$ command -v foo >/dev/null 2>&1 || { echo >&2 "I require foo but it's not installed. Aborting."; exit 1; }
$ type foo >/dev/null 2>&1 || { echo >&2 "I require foo but it's not...
What is a method group in C#?
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A method group is the name for a set of methods (that might be just one) - i.e. in theory the ToString method may have multiple overloads (plus any extension methods): ToString(), ToString(string format), etc - hence ToString by itself is a "method group".
It can usually convert a method gro...
Encoding an image file with base64
...d Jul 31 '14 at 19:53
Alex Zavatone
3,1763030 silver badges4545 bronze badges
answered Sep 15 '10 at 7:31
Jim ...
Apache Spark: The number of cores vs. the number of executors
...apacity
of the NodeManagers. The application master will take up a core on one
of the nodes, meaning that there won’t be room for a 15-core executor
on that node. 15 cores per executor can lead to bad HDFS I/O
throughput.
A better option would be to use --num-executors 17
--executor-cores 5 --exec...
to_string is not a member of std, says g++ (mingw)
...an "MinGW-builds" are builds of MinGW-w64, a different project to MinGW. One reason that MinGW-w64 was forked off was so they they could in fact fix bugs like the one this thread was about.
– M.M
Mar 27 '16 at 7:33
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How to replace plain URLs with links?
...a terrible idea. You must imagine this is a common enough problem that someone has written, debugged and tested a library for it, according to the RFCs. URIs are complex - check out the code for URL parsing in Node.js and the Wikipedia page on URI schemes.
There are a ton of edge cases when it come...
What is the difference between shallow copy, deepcopy and normal assignment operation?
...list but inner lists are references. For the inner lists, would the copied one influenced by original one? I create a list of lists like list_=[[1,2],[3,4]] newlist = list_.copy() list_[0]=[7,8] and the newlist remains the same, so does the inner list are references?
– Alston
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