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Maximum packet size for a TCP connection
...t) for Ethernet, for instance, is 1500 bytes. Some types of networks (like Token Ring) have larger MTUs, and some types have smaller MTUs, but the values are fixed for each physical technology.
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get all characters to right of last dash
...er time, but in the general case note that code like this will many string allocations (probably four in the example above) so might be deemphasized in performance-critical sections.
– Charles Burns
Mar 21 '16 at 16:05
...
What's an appropriate HTTP status code to return by a REST API service for a validation failure?
...entials may be a username and password, an API key, or an authentication
token—whatever the service in question is expecting. It’s common for a client to make
a request for a URI and accept a 401 just so it knows what kind of credentials to send
and in what format. [...]
...
Why is reading lines from stdin much slower in C++ than Python?
...ause that quite simply doesn't do as much work as Python does. Python must allocate memory for the string, possibly multiple times as the existing allocation is deemed inadequate - exactly like the C++ approach with std::string. This task is almost certainly I/O bound and there is way too much FUD g...
Which iomanip manipulators are 'sticky'?
...:
21.3.7.9 [lib.string.io]:
template<class charT, class traits, class Allocator>
basic_ostream<charT, traits>&
operator<<(basic_ostream<charT, traits>& os,
const basic_string<charT,traits,Allocator>& str);
22.2.2.2.2 [lib.facet.num.p...
Populating a database in a Laravel migration file
...', 64);
$table->boolean('verified');
$table->string('token', 255);
$table->timestamps();
});
// Insert some stuff
DB::table('users')->insert(
array(
'email' => 'name@domain.com',
'verified' => true
)
)...
What do Clustered and Non clustered index actually mean?
...0 <-> 1:157 <-> 1:7053
When a page split happens a new page is allocated from anywhere in the filegroup (from either a mixed extent, for small tables or a non-empty uniform extent belonging to that object or a newly allocated uniform extent). This might not even be in the same file if th...
What are the most widely used C++ vector/matrix math/linear algebra libraries, and their cost and be
...not safely pass-by-value
use of Eigen types as members requires special allocator customization (or you crash)
use with stl container types and possibly other templates required
special allocation customization (or you will crash)
certain compilers need special care to prevent crashes on fu...
Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell
...d. From what I've understood, this transformation can result in additional allocations of closure objects. This means worse performance in some cases, but as Johan Tibell suggests in his blog post this can be avoided if the resulting wrapper can be inlined.
– hammar
...
C++ mark as deprecated
...d]] attribute (see section 7.6.5 [dcl.attr.deprecated]).
The attribute-token deprecated can be used to mark names and entities whose use is still allowed, but is discouraged for some reason.
For example, the following function foo is deprecated:
[[deprecated]]
void foo(int);
It is possible ...