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C++ Redefinition Header Files (winsock2.h)
How do I prevent from including header files twice? The problem is I'm including the in MyClass.h and then I'm including MyClass.h in many files, so it includes multiple times and redefinition error occurs. How to prevent?
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Docker can't connect to docker daemon
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Linux
To run docker daemon on Linux (from CLI), run:
$ sudo service docker start # Ubuntu/Debian
Note: Skip the $ character when copy and pasting.
On RedHat/CentOS, run: sudo systemctl start docker.
To initialize the "base" filesystem, run:
$ sudo service ...
ImportError: No module named Crypto.Cipher
...alenv keeps returning the error listed above. My import statement is just from Crypto.Cipher import AES . I looked for duplicates and you might say that there are some, but I tried the solutions (although most are not even solutions) and nothing worked.
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Queue.Queue vs. collections.deque
...e which multiple threads can put stuff into, and multiple threads may read from.
7 Answers
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Compile time string hashing
...absolutely. I tested it against the Python CRC32 runtime algorithm (coming from zlib) and the results are the same. In fact, what you're trying to achieve is exactly why I use this technique for!
– Clement JACOB
Aug 23 '13 at 7:07
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Read a text file using Node.js?
I need to pass in a text file in the terminal and then read the data from it, how can I do this?
5 Answers
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How to convert an Int to a String of a given length with leading zeros to align?
...retty good (as in excellent) number formatting support which is accessible from StringOps enriched String class:
scala> "%07d".format(123)
res5: String = 0000123
scala> "%07d".formatLocal(java.util.Locale.US, 123)
res6: String = 0000123
Edit post Scala 2.10: as suggested by fommil, from 2....
How do I add files and folders into GitHub repos?
...2e master -> master
Branch master set up to track remote branch master from origin.
The files have been pushed successfully to the remote repository.
Running a git pull origin master to ensure you have absorbed any upstream changes
$ git pull origin master
remote: Counting objects: 12, done....
Why start an ArrayList with an initial capacity?
... + 2 + 3 + 1 + 5 + 3 = 16, which is twice the number of elements inserted. From this sketch you can prove that the average cost is two per insert in general.
– Eric Lippert
Mar 15 '13 at 16:55
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Entity Framework Code First - Advantages and disadvantages of Fluent Api vs Data Annotations [closed
...tity Framework code-first, a lot of the database model is can be extracted from the code. Fluent API and/or Attributes can be used to fine tune the model.
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