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What's the need of array with zero elements?
...lloc(sizeof(*var) + extra);
You can access var->data with indices in [0, extra). Note that sizeof(struct something) will only give the size accounting for the other variables, i.e. gives data a size of 0.
It may be interesting also to note how the standard actually gives examples of mallocin...
Get current value of a setting in Vim
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answered Jan 16 '10 at 17:28
JaredParJaredPar
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Ruby on Rails patterns - decorator vs presenter
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104
A decorator is more of a "let's add some functionality to this entity". A presenter is more of ...
Loop through Map in Groovy?
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edited Sep 19 '17 at 13:07
answered Apr 5 '12 at 23:23
Ja...
What are the relationships between Any, AnyVal, AnyRef, Object and how do they map when used in Java
...red a primitive in Java is descendant from AnyVal in Scala. Until Scala 2.10.0, AnyVal was sealed, and programmers were unable to extend it. It should be interesting to see what will happen with Scala on .Net, since interoperability alone calls for Scala to at least recognize user-defined "primitive...
How to view revision history for Mercurial file?
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hg log file
hg diff -r 10 -r 20 file
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How can I rename a field for all documents in MongoDB?
Assuming I have a collection in MongoDB with 5000 records, each containing something similar to:
7 Answers
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RabbitMQ message size and types
...nt to read up on their performance measures:
http://www.rabbitmq.com/blog/2012/04/17/rabbitmq-performance-measurements-part-1/
http://www.rabbitmq.com/blog/2012/04/25/rabbitmq-performance-measurements-part-2/
Queues are pretty light weight, you will most likely be limited by the number of connection...
What happens if i return before the end of using statement? Will the dispose be called?
...de:
using(MemoryStream ms = new MemoryStream())
{
//code
return 0;
}
effectively becomes:
MemoryStream ms = new MemoryStream();
try
{
// code
return 0;
}
finally
{
ms.Dispose();
}
So, because finally is guaranteed to execute after the try block has finished execution, reg...
jQuery - get a list of values of an attribute from elements of a class
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answered May 2 '10 at 16:02
KobiKobi
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