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What is the Scala annotation to ensure a tail recursive function is optimized?
...ala\tests>scala
Welcome to Scala version 2.8.0.RC5 (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_18).
Type in expressions to have them evaluated.
Type :help for more information.
scala> import scala.annotation.tailrec
import scala.annotation.tailrec
scala> class Tails {
| @tailrec d...
Are tuples more efficient than lists in Python?
...python -m timeit "x=list(xrange(999999))". As one might expect, it takes a bit longer to materialize a tuple than a list.
– Hamish Grubijan
Nov 15 '12 at 1:10
3
...
Is it worth hashing passwords on the client side
...order to make sure, that such a replay attack cannot work, usually, by allowing the client to select a bunch of random bits, which are hashed along with the password, and also submitted in the clear to the server.
On the server:
generate a few bits of random
send these bits (in clear text) to th...
Is there any way to specify a suggested filename when using data: URI?
...
I've looked a bit in firefox sources in netwerk/protocol/data/nsDataHandler.cpp
data handler only parses content/type and charset, and looks if there is ";base64"
in the string
the rfc specifices no filename and at least firefox handles ...
Maximum size of an Array in Javascript
...rding to the ECMA-262 5th Edition specification is bound by an unsigned 32-bit integer due to the ToUint32 abstract operation, so the longest possible array could have 232-1 = 4,294,967,295 = 4.29 billion elements.
share
...
Why git can't remember my passphrase under Windows
...you use TortoiseGit in addition to msysgit or not.
First solution Assumes Windows, msysgit, and PuTTY.
Install msysgit and PuTTY as instructed.
(Optional) Add PuTTY to your path. (If you do not do this, then any references to PuTTY commands below must be prefixed with the full path to the appropr...
When to use std::size_t?
...inter takes, etc.
It's also portable across platforms - you'll find that 64bit and 32bit both behave nicely with system functions and size_t - something that unsigned int might not do (e.g. when should you use unsigned long
...
Random number generator only generating one random number
... return Guid.NewGuid().GetHashCode();
}
}
It's going to be a wee bit slower, but can be much more random than Random.Next, at least from my experience.
But not:
new Random(Guid.NewGuid().GetHashCode()).Next();
The unnecessary object creation is going to make it slower especially under ...
jquery save json data object in cookie
... |
edited Mar 2 '17 at 10:11
Christophe Roussy
12.6k22 gold badges6969 silver badges7373 bronze badges
...
Is it better to use C void arguments “void foo(void)” or not “void foo()”? [duplicate]
...mitted identifier list and a parameter type list, the parameter type list "wins". The type of the function at the end contains a prototype:
void f();
void f(int a) {
printf("%d", a);
}
// f has now a prototype.
That is because both declarations do not say anything contradictory. The second,...