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What does Ruby have that Python doesn't, and vice versa?
... actually a bit of a misnomer. Modules are basically classes sans the new, allocate methods. They work best as a way to share code on a per class/object basis, not as mechanism for partitioning libraries, or to share code across programs.
– Logan Capaldo
Jul 12...
“is” operator behaves unexpectedly with integers
...n documentation and we would've know all along!:
/* Small integers are preallocated in this array so that they
can be shared.
The integers that are preallocated are those in the range
-NSMALLNEGINTS (inclusive) to NSMALLPOSINTS (not inclusive).
*/
static PyLongObject small_ints[NSMALLNEGIN...
Is R's apply family more than syntactic sugar?
...u mean to set y to 1:1e6, not numeric(1e6) (a vector of zeroes). Trying to allocate foo(0) to z[0] over and over does not illustrate well a typical for loop usage. The message is otherwise spot on.
– flodel
Dec 1 '16 at 4:33
...
Adding gif image in an ImageView in android
...ixels.length < npix)) {
pixels = new byte[npix]; // allocate new pixel array
}
if (prefix == null) {
prefix = new short[MAX_STACK_SIZE];
}
if (suffix == null) {
suffix = new byte[MAX_STACK_...
How do arrays in C# partially implement IList?
...r of items, whereas an array has an unchangeable "length" as soon as it is allocated (regardless of which elements have values.)
– dlev
Jun 22 '12 at 20:09
1
...
What is an IndexOutOfRangeException / ArgumentOutOfRangeException and how do I fix it?
...ith a limitation: they can't grow, if you need more elements you need to reallocate that array (this may take a relatively long time if old items must be copied to a new block). You resize them with Array.Resize<T>(), this example adds a new entry to an existing array:
Array.Resize(ref array,...
Using smart pointers for class members
...w pointers are bad when used for performing manual memory management, i.e. allocating and deallocating objects through new and delete. When used purely as a means to achieve reference semantics and pass around non-owning, observing pointers, there is nothing intrinsically dangerous in raw pointers, ...
Is it ever advantageous to use 'goto' in a language that supports loops and functions? If so, why?
...o this already):
Cleanly exiting a function
Often in a function, you may allocate resources and need to exit in multiple places. Programmers can simplify their code by putting the resource cleanup code at the end of the function, and all "exit points" of the function would goto the cleanup label....
std::vector performance regression when enabling C++11
...han for C++98 mode and inlining the function
void std::vector<Item,std::allocator<Item>>::_M_emplace_back_aux<Item>(Item&&)
fails in C++11 mode with the default inline-limit.
This failed inline has a domino effect. Not because this function is being called
(it is not eve...
What's the need of array with zero elements?
...
This is a way to have variable sizes of data, without having to call malloc (kmalloc in this case) twice. You would use it like this:
struct bts_action *var = kmalloc(sizeof(*var) + extra, GFP_KERNEL);
This used to be not standard and was considered a hack (as Aniket said), but it was standa...