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What does void* mean and how to use it?
... int (*compar)(const void *, const void *));
base is the address of an array, nmemb is the number of elements in the array, size is the size of each element, and compar is a pointer to a function that compares two elements of the array. It gets called like so:
int iArr[10];
double dArr[30];
lo...
How to convert a char to a String?
...acked by a char[] (over-allocated by StringBuilder() to 16), only for that array to be defensively copied by the resulting String.
String.valueOf(char) "gets in the back door" by wrapping the char in a single-element array and passing it to the package private constructor String(char[], boolean), w...
Curly braces in string in PHP
...
it allows for the use of complex expressions.
Any scalar variable, array element or object property with a string
representation can be included via this syntax. Simply write the
expression the same way as it would appear outside the string, and
then wrap it in { and }. Since { can not...
C library function to perform sort
...t() is the function you're looking for. You call it with a pointer to your array of data, the number of elements in that array, the size of each element and a comparison function.
It does its magic and your array is sorted in-place. An example follows:
#include <stdio.h>
#include <stdlib....
Pandas convert dataframe to array of tuples
...ve back to the database. This requires me to convert the dataframe into an array of tuples, with each tuple corresponding to a "row" of the dataframe.
...
How to implement has_many :through relationships with Mongoid and mongodb?
...MS you would model that differently in MongoDB using a field containing an array of 'foreign' keys on either side. For example:
class Physician
include Mongoid::Document
has_and_belongs_to_many :patients
end
class Patient
include Mongoid::Document
has_and_belongs_to_many :physicians
end
...
Best way to parse RSS/Atom feeds with PHP [closed]
...y 1 file to "require", and can fetch the RSS within 5 lines, with a decent array output.
– Raptor
May 11 '14 at 5:53
p...
Fastest sort of fixed length 6 int array
...umbled upon an interesting sub-problem. What is the fastest way to sort an array of 6 integers?
23 Answers
...
MassAssignmentException in Laravel
...ake all fields fillable, just declare on your class:
protected $guarded = array();
This will enable you to call fill method without declare each field.
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Log to the base 2 in python
...np.log2(x, y=None)
Docstring:
Return the base 2 logarithm of the input array, element-wise.
Parameters
----------
x : array_like
Input array.
y : array_like
Optional output array with the same shape as `x`.
Returns
-------
y : ndarray
The logarithm to the base 2 of `x` element-wise.
Na...