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Why can I throw null in Java? [duplicate]
... it's the only one that explains why it's not a compile-time error. (Or at least, the only one whose explanation is not wrong!)
– ruakh
Jul 11 '13 at 0:56
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Add new item in existing array in c#.net
...sion using Enumerable.Repeat that does not require creating any object (at least not on the surface -- .NET iterators probably create a bunch of state machine objects under the table).
arr = (arr ?? Enumerable.Empty<string>()).Concat(Enumerable.Repeat(newitem,1)).ToArray();
And if you are s...
Why is Visual Studio 2013 very slow?
... weird thing is that browser link slows down some pages and others not. At least one can easily check if browser link is the source of the problem. Just load a page where the problem occurs and check if after the page has been loaded the CPU usage remains high. If that is the case and the CPU usage ...
Fast ceiling of an integer division in C / C++
...n the processor, because the compiler can see that they are equivalent. At least gcc 4.4.1 performs this optimization with -O2 flag on x86.
In theory the compiler might inline the function call in Nathan Ernst's code and emit the same thing, but gcc didn't do that when I tested it. This might be b...
How to retrieve absolute path given relative
... Surprisingly, realpath is available on Git for Windows (for me, at least).
– Andrew Keeton
Nov 25 '19 at 22:00
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Sending and Parsing JSON Objects in Android [closed]
... your own POJOs, not some half-assed tree nodes or Lists and Maps.
(and at least Jackson allows binding to such things too (perhaps GSON as well, not sure), JsonNode, Map, List, if you really want these instead of 'real' objects)
EDIT 19-MAR-2014:
Another new contender is Jackson jr library: it us...
Is there a ceiling equivalent of // operator in Python?
... Confirming here that -(a // -b) is faster than -(-a // b), at least when timing toy examples with python -m timeit ...
– Jasha
Jul 31 at 22:40
add a comment
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Convert a bitmap into a byte array
... to use with image processing (it's overkill for converting to a byte[] at least), especially when you consider the following.
I took a look at the ImageConverter code used by the .Net framework, and internally it uses code almost identical to the one I provided above. It creates a new MemoryStrea...
How do I Search/Find and Replace in a standard string?
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I am used to apply the 'least surprise' principle. For loops are for simple index increment use, most of time. Here, according to me, a while loop is clearer.
– yves Baumes
Aug 23 '12 at 19:16
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How to disable Golang unused import error
...es it useless. This should be included in the standard go compiler, at the least so that go run main.go disables the errors by default, while go build enables the errors. That way it's easy to develop using go run and when it's time to build for production, you are still forced to clean up your code...