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Performance of Arrays vs. Lists
...ing code where I know the length is fixed I use arrays for that extra tiny bit of micro-optimisation; arrays can be marginally faster if you use the indexer / for form - but IIRC believe it depends on the type of data in the array. But unless you need to micro-optimise, keep it simple and use List&l...
How can I find the last element in a List?
...nt is 0, bad index
string otherString = myList[-1];
"count-1" is a bad habit unless you first guarantee the list is not empty.
There is not a convenient way around checking for the empty list except to do it.
The shortest way I can think of is
string myString = (myList.Count != 0) ? myList [ my...
Is the “struct hack” technically undefined behavior?
...ly might issue warnings.)
The rationale behind the 'strictly conforming' bit is in the spec, section J.2 Undefined behavior, which includes in the list of undefined behavior:
An array subscript is out of range, even if an object is apparently accessible with the given subscript (as in the l...
On delete cascade with doctrine2
..." because it means the ORM has to do less work and it should have a little bit better performance.
– Michael Ridgway
Jun 16 '11 at 15:44
60
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Easiest way to convert int to string in C++
...quite ubiquitous. That's a case of POLA in itself. I might toy with this a bit to make it more "streamlined".
– DevSolar
Jun 18 '15 at 8:45
1
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Limits of Nat type in Shapeless
... ^
This could be used to e.g. enforce same array size when doing bit operations on Array[Byte].
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Custom ImageView with drop shadow
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A bit more step by step tutorial can be found here: sapandiwakar.in/…
– Bart Burg
Mar 5 '14 at 15:03
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Rails Object to hash
...me => "test",
:post_number => 20,
:active => true
}
To go a bit further, you could override that method in order to customize the way your attributes appear, by doing something like this :
class Post < ActiveRecord::Base
def as_json(*args)
{
:name => "My name is '#{...
Performing Breadth First Search recursively
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Please pay a little bit more attention to your code formating. I did some changes.
– Micha
Aug 9 '13 at 5:24
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C++ Convert string (or char*) to wstring (or wchar_t*)
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This works only for 7-bit ASCII characters. For latin1, it works only if char is configured as unsigned. If the type char is signed (which is most of time the case), characters > 127 will give wrong results.
– huyc
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