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How do I check if a list is empty?
...ient if the array is of a significant size. Also, typically, you would not allocate memory for an empty array (pointer remains null), so it makes no sense to attempt to get its length. I am not saying that len(a) == 0 is not a good way of doing it, it just does not scream 'C' to me when I see it.
...
Suppress warning CS1998: This async method lacks 'await'
... Median | Min | Max | Rank | Gen 0 | Gen 1 | Gen 2 | Allocated |
--------------- |----- |-------- |-------------:|------------:|------------:|-------------:|-------------:|-------------:|-----:|-------:|-------:|-------:|----------:|
CompletedAwait | Clr | Clr | 95.253...
Why would you use an ivar?
...ly common in partially constructed states -- in your initializers and in dealloc, it's best to use direct access. You may also find this common in the implementations of an accessor, a convenience constructor, copy, mutableCopy, and archiving/serialization implementations.
It's also more frequent as...
Simple proof that GUID is not unique [closed]
...(OutOfMemoryException)
{
// Release the ram we allocated up front.
// Actually, these are pointless too.
//GC.KeepAlive(reserveSomeRam);
//GC.Collect();
}
Console.WriteLine("{0:u} - Built bigHeapOGuid...
When should I choose Vector in Scala?
...ame memory characteristics of a linked list, but with a much bigger memory allocation profile.
– Daniel C. Sobral
Aug 27 '14 at 21:47
|
show...
Test if lists share any items in python
...y(i in a for i in b)
This allows to search in-place, so no new memory is allocated for intermediary variables. It also bails out on the first find. But the in operator is always O(n) on lists (see here).
Another proposed option is an hybridto iterate through one of the list, convert the other one...
Legality of COW std::string implementation in C++11
...perators [string.cons]
basic_string(const basic_string<charT,traits,Allocator>& str);
[...]
2 Effects: Constructs an object of class basic_string as indicated in Table 64. [...]
Table 64 helpfully documents that after construction of an object via this (copy) constructor, t...
Android: how to draw a border to a LinearLayout
...
Please, don't allocate memory in onDraw() method, create your objects in an init() method, called by the constructor and reuse them in the onDraw() method. Allocating in onDraw() (called 60 times per second) leads to poor performance, batt...
Git Extensions: Win32 error 487: Couldn't reserve space for cygwin's heap, Win32 error 0
...or Windows 2.
Technical details
0 [main] us 0 init_cheap: VirtualAlloc pointer is null, Win32 error 487
AllocationBase 0x0, BaseAddress 0x68570000, RegionSize 0x2A0000, State 0x10000
PortableGit\bin\bash.exe: *** Couldn't reserve space for cygwin's heap, Win32 error 0
This symptom by its...
How do I write a short literal in C++?
...ough to compile this as if it's a short literal (i.e. it wouldn't actually allocate an int and then cast it every time).
The following illustrates how much you should worry about this:
a = 2L;
b = 2.0;
c = (short)2;
d = '\2';
Compile -> disassemble ->
movl $2, _a
movl $2, _b
movl ...