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What are some compelling use cases for dependent method types?
...ored in a hash map and referenced by a hash key value. Functions input immutable arguments that are values from the environment, may call other such functions, and write state to the environment. But functions are not allowed to read values from the environment (so the internal code of the function ...
Approximate cost to access various caches and main memory?
... ~100 ns
EDIT2:
The most important is the notice under the cited table, saying:
"NOTE: THESE VALUES ARE ROUGH APPROXIMATIONS. THEY DEPEND ON
CORE AND UNCORE FREQUENCIES, MEMORY SPEEDS, BIOS SETTINGS,
NUMBERS OF DIMMS, ETC,ETC..YOUR MILEAGE MAY VARY."
EDIT: I should highlight that...
std::function vs template
...he code (which would not be possible if the call were performed through a vtable).
Yes, it is true that template support is not perfect, and C++11 is still lacking a support for concepts; however, I don't see how std::function would save you in that respect. std::function is not an alternative to t...
Get operating system info
...9
[cssversion] => 2
[frames] => 1
[iframes] => 1
[tables] => 1
[cookies] => 1
[backgroundsounds] =>
[vbscript] =>
[javascript] => 1
[javaapplets] => 1
[activexcontrols] =>
[cdf] =>
[aol] =>
[beta] => 1
[wi...
Best explanation for languages without null
...f why null is undesirable is that meaningless states should not be representable.
Suppose I'm modeling a door. It can be in one of three states: open, shut but unlocked, and shut and locked. Now I could model it along the lines of
class Door
private bool isShut
private bool isLocked
an...
How do I create a simple 'Hello World' module in Magento?
...provides to get the information you need. I know it's all there in the SQL tables, but it's best not to think of grabbing data using raw SQL queries, or you'll go mad.
Final disclaimer. I've been using Magento for about two or three weeks, so caveat emptor. This is an exercise to get this straight ...
REST API Token-based Authentication
... shared secret, and then use a salt that doesn't change to prevent rainbow table attacks. The username field seems like a good place to put the nonce too, since it is part of the auth. So now you have a clean call like this:
nonce = generate_secure_password(length: 16);
one_time_key = nonce + '-' +...
How to enable local network users to access my WAMP sites?
...l this does not make sense since a disabled firewall ignores the exception tables and allow everything. Make sure your antivirus software is disabled or it's firewall layer is also disabled to perform a clean test.
– Matteus Barbosa
Apr 21 '19 at 14:36
...
Why is an int in OCaml only 31 bits?
...you take up almost 20 Byte.
However, the trick is that with so-called immutable value types like integers, you usually don't need all the metadata in the object header: you can just leave all that stuff out, and simply synthesize it (which is VM-nerd-speak for "fake it"), when anyone cares to look....
Grouping functions (tapply, by, aggregate) and the *apply family
...rs of many types together in a traditional rectangular dataset. While data.table and plyr might add a certain type of syntax that some might find more comfortable, they are extending and acting on data.frames respectively.
– thelatemail
Aug 20 '14 at 6:08
...