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String Concatenation using '+' operator
..."there";
string z = "chaps";
string all = string.Concat(x, y, z);
(Gah - intervening edit removed other bits accidentally.)
The benefit of the C# compiler noticing that there are multiple string concatenations here is that you don't end up creating an intermediate string of x + y which then needs...
How to Sort Multi-dimensional Array by Value?
...re them: If the first element is bigger than the second, return a positive integer, if it is smaller, return a negative one. If they are equel, return 0. PHP then sends two other elements to your function and continues to do so, until the array has been sorted. The function here is very short, it mi...
What is the purpose of fork()?
...ether.
Typical usage of fork in a shell might look something like this:
int child_process_id = fork();
if (child_process_id) {
// Fork returns a valid pid in the parent process. Parent executes this.
// wait for the child process to complete
waitpid(child_process_id, ...); // omitt...
Practical uses of different data structures [closed]
... structures and their practical use out there. I'm trying to study for an interview and I think this would help me out, along with many others. I'm looking for something like this:
...
What is the difference between Collection and List in Java?
...
List in java extends Collections interface and builds indexed functions which help in position based retrieval and removal behavior
– frictionlesspulley
Jul 23 '10 at 18:46
...
Generate random numbers with a given (numerical) distribution
... rvs() method of the distribution object to generate random numbers.
As pointed out by Eugene Pakhomov in the comments, you can also pass a p keyword parameter to numpy.random.choice(), e.g.
numpy.random.choice(numpy.arange(1, 7), p=[0.1, 0.05, 0.05, 0.2, 0.4, 0.2])
If you are using Python 3.6 o...
Applications are expected to have a root view controller at the end of application launch
... now creates the main.m file. For example: #import "AppDelegate.h and then int retVal = UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
– sho
Dec 21 '11 at 7:58
...
PostgreSQL: insert from another table
...
Just supply literal values in the SELECT:
INSERT INTO TABLE1 (id, col_1, col_2, col_3)
SELECT id, 'data1', 'data2', 'data3'
FROM TABLE2
WHERE col_a = 'something';
A select list can contain any value expression:
But the expressions in the select list do not have to ref...
How do you exit from a void function in C++?
...
Even more to the point: you must NOT specify any return value if your method returns void.
– Jonathan Leffler
Apr 19 '09 at 20:16
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String literals: Where do they go?
I am interested in where string literals get allocated/stored.
8 Answers
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