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What is InputStream & Output Stream? Why and when do we use them?
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@KorayTugay A stream is generally defined as a set of characters. To be more precise, more than one bit or character is called as a stream.
– Gowtham Gopalakrishnan
Jul 28 '14 at 15:21
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Why the switch statement cannot be applied on strings?
...ost as clear as switching over the string if you are using a predetermined set of strings:
enum string_code {
eFred,
eBarney,
eWilma,
eBetty,
...
};
string_code hashit (std::string const& inString) {
if (inString == "Fred") return eFred;
if (inString == "Barney") re...
Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...rt of the MapReduce paradigm, which deals with orderless collections (multisets), Fold is formally defined in terms of recursion (see catamorphism) and thus assumes a structure / sequence to the collections.
There is no fold method in Scalding because under the (strict) Map Reduce programming model...
Fastest hash for non-cryptographic uses?
...ere each loop shares the same thing to crypt as all the others.
<?php
set_time_limit(720);
$begin = startTime();
$scores = array();
foreach(hash_algos() as $algo) {
$scores[$algo] = 0;
}
for($i=0;$i<10000;$i++) {
$number = rand()*100000000000000;
$string = randomString(500);
...
How to pass objects to functions in C++?
... func (vector* vp);
Similar to non-const reference. The caller typically sets the variable to NULL when the function is not supposed to write back a value. This convention is seen in many glibc APIs. Example:
void func (string* str, /* ... */) {
if (str != NULL) {
*str = some_value; /...
Virtual member call in a constructor
...solve to any override in B, if one is provided.
Even if you intentionally set up A and B like this, fully understanding the behavior of the system, you could be in for a shock later. Say you called virtual functions in B's constructor, "knowing" they would be handled by B or A as appropriate. Then ...
On - window.location.hash - Change?
... to really do this (and is how the 'reallysimplehistory' does this), is by setting an interval that keeps checking the current hash, and comparing it against what it was before, we do this and let subscribers subscribe to a changed event that we fire if the hash changes.. its not perfect but browser...
Use numpy array in shared memory for multiprocessing
....get_logger().info
def main():
logger = mp.log_to_stderr()
logger.setLevel(logging.INFO)
# create shared array
N, M = 100, 11
shared_arr = mp.Array(ctypes.c_double, N)
arr = tonumpyarray(shared_arr)
# fill with random values
arr[:] = np.random.uniform(size=N)
a...
Get integer value of the current year in Java
...ce().get(Calendar.YEAR);
Not sure if this meets with the criteria of not setting up a new Calendar? (Why the opposition to doing so?)
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What is the correct way of using C++11's range-based for?
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