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What do all of Scala's symbolic operators mean?
... here's a few syntactic sugars that may hide a method:
class Example(arr: Array[Int] = Array.fill(5)(0)) {
def apply(n: Int) = arr(n)
def update(n: Int, v: Int) = arr(n) = v
def a = arr(0); def a_=(v: Int) = arr(0) = v
def b = arr(1); def b_=(v: Int) = arr(1) = v
def c = arr(2); def c_=(v...
ViewPager and fragments — what's the right way to store fragment's state?
...create, so the only way to reference was to somehow store references in an Array to be restored after the rotation/configuration change.
Workaround
- The key concept was to have the Activity (which displays the Fragments) also manage the array of references to existing Fragments, since this activit...
Version vs build in Xcode
...cifiers:2 means look at the item at index 2 under the PreferenceSpecifiers array in your plist file, so for a 0-based index, that's the 3rd preference setting in the array.
productVersion=$(/usr/libexec/PlistBuddy -c "Print CFBundleShortVersionString" "$INFOPLIST_FILE")
/usr/libexec/PlistBuddy -c "...
How to use concerns in Rails 4
...
def find_comments_with_word(word)
# for the given event returns an array of comments which contain the given word
end
def self.least_commented
# finds the event which has the least number of comments
end
def self.most_attended
# returns the event with most number of attend...
Does use of final keyword in Java improve the performance?
...irectly onto the operand stack (it will not be stored into local variables array like the previous example does via bipush 12; istore_0; iload_0) - which sort of makes sense since no one can change it.
On the other hand why in the second case the compiler does not produce istore_0 ... iload_0 is bey...
No == operator found while comparing structs in C++
...ed-to-data (and if the latter, how to know how whether the pointers are to arrays and of how many objects/bytes needing comparison)
whether order matters when comparing unsorted containers (e.g. vector, list), and if so whether it's ok to sort them in-place before comparing vs. using extra memory to...
How do I check if there are duplicates in a flat list?
...
often doesn't work for array of floating points.See stackoverflow.com/questions/60914705
– Manas Dogra
Mar 29 at 14:44
add ...
Fitting empirical distribution to theoretical ones with Scipy (Python)?
...[]: values= [0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 3, 3, 4]
In []: counts= asarray(bincount(values), dtype= float)
In []: cdf= counts.cumsum()/ counts.sum()
Thus, probability of seeing values higher than 1 is simply (according to the complementary cumulative distribution function (ccdf):
In []: 1- ...
How does the socket API accept() function work?
...IP maintains a database (meaning I don't care what kind of table/list/tree/array/magic data structure it uses) of active sockets and listens on the Server Port. When it receives a message (via the server's TCP/IP stack), it checks the Client IP and Port against the database. If the Client IP and C...
When and why will a compiler initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete?
... it with a fence)
and is used to detect indexing arrays out of
bounds or other accesses (especially writes) past
the end (or start) of an allocated block.
0xFD or Buffer slack Used to fill slack space in some memory bu...