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Create Directory if it doesn't exist with Ruby
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Edit2: you do not have to use FileUtils, you may do system call (update from @mu is too short comment):
> system 'mkdir', '-p', 'foo/bar' # worse version: system 'mkdir -p "foo/bar"'
=> true
But that seems (at least to me) as worse approach as you are using external 'tool' which may be u...
Function passed as template argument
...stantiated code for do_op with fadd looks something like:
convert a and b from int to float.
call the function ptr op with float a and float b.
convert the result back to int and return it.
By comparison, our by-value case requires an exact match on the function arguments.
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Why prefer two's complement over sign-and-magnitude for signed numbers?
...0 (0)
The same is true for subtraction.
Also, if you try to subtract 4 from 6 (two positive numbers) you can 2's complement 4 and add the two together 6 + (-4) = 6 - 4 = 2
This means that subtraction and addition of both positive and negative numbers can all be done by the same circuit in the c...
maven-dependency-plugin (goals “copy-dependencies”, “unpack”) is not supported by m2e
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Despite answer from CaioToOn above, I still had problems getting this to work initially.
After multiple attempts, finally got it working.
Am pasting my final version here - hoping it will benefit somebody else.
<build>
...
Why is early return slower than else?
... of 2, so 2**i is the size of the hash table, i is the number of bits used from the hash value j.
Each probe into the table can find one of these:
The slot is empty, in that case the probing stops and we know the
value is not in the table.
The slot is unused but was used in the past in which case...
Storing R.drawable IDs in XML array
...wer_home</item>
</integer-array>
You will get array of Image from the resource as TypedArray
val imageArray = resources.obtainTypedArray(R.array.drawer_icons)
get resource ID by the index
imageArray.getResourceId(imageArray.getIndex(0),-1)
OR you can set imageView's resource to ...
Is leaked memory freed up when the program exits?
... the OS keep track of all allocations? Any heap memory you allocate comes from the virtual memory space of the process - when the process terminates, that space is given back to the system wholesale, right? I don't see why the extra bookkeeping would be necessary, since the process making the allo...
Full Page
...like it's taking away the responsiveness (i.e. collapsing of columns, etc) from the content within the iframe. But somehow only when opening the page with mobile safari, not when resizing a desktop browser. Any ideas what could cause that behaviour?
– psteinweber
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Intermittent log4net RollingFileAppender locked file issue
... lock on the log
file while it is logging. This prevents other processes from writing
to the file. This model is known to break down with (at least on some
versions of) Mono on Linux and log files may get corrupted as soon as
another process tries to access the log file.
MinimalLock onl...
Constructors in JavaScript objects
..., the classes correctly interact with each other (they share the static id from MyClass, the announce method uses the correct get_name method, etc.)
One thing to note is the need to shadow instance properties. You can actually make the inherit function go through all instance properties (using hasO...