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Convert any object to a byte[]
...
Use the BinaryFormatter:
byte[] ObjectToByteArray(object obj)
{
if(obj == null)
return null;
BinaryFormatter bf = new BinaryFormatter();
using (MemoryStream ms = new MemoryStream())
{
bf.Serialize(ms, obj);
return ms.ToArray();
...
Accessing an array out of bounds gives no error, why?
...says what should happen if you access the elements within the bounds of an array. It is left undefined what happens if you go out of bounds. It might seem to work today, on your compiler, but it is not legal C or C++, and there is no guarantee that it'll still work the next time you run the program....
Fastest Way to Serve a File Using PHP
... if ($multipart === true)
{
$range = array(0, $size - 1);
if (array_key_exists('HTTP_RANGE', $_SERVER) === true)
{
$range = array_map('intval', explode('-', preg_replace('~.*=([^,]*).*~', '$1', $_SERVER['HTTP_...
What C++ Smart Pointer Implementations are available?
...that it calls delete upon destruction making them unacceptable for holding array allocated objects (new[]). It takes ownership of the pointer so two auto pointers shouldn't contain the same object. Assignment will transfer ownership and reset the rvalue auto pointer to a null pointer. Which leads to...
PHP - Check if two arrays are equal
I'd like to check if two arrays are equal. I mean: same size, same index, same values. How can I do that?
15 Answers
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Get only part of an Array in Java?
I have an array of Integers in Java, I would like use only a part of it. I know in Python you can do something like this array[index:] and it returns the array from the index. Is something like this possible in Java.
...
List of Big-O for PHP functions
...plementations of a function that finds if a number is prime using a cached array of primes.
4 Answers
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How do I empty an array in JavaScript?
Is there a way to empty an array and if so possibly with .remove() ?
18 Answers
18
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How to sum all column values in multi-dimensional array?
...
$sumArray = array();
foreach ($myArray as $k=>$subArray) {
foreach ($subArray as $id=>$value) {
$sumArray[$id]+=$value;
}
}
print_r($sumArray);
...
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....