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What is the Scala identifier “implicitly”?
...yRef{def min(i: Int): Int} = 1
scala> .getClass
res24: java.lang.Class[_] = class scala.runtime.RichInt
Implicit Views can also be triggered when an expression does not conform to the Expected Type, as below:
scala> 1: scala.runtime.RichInt
res25: scala.runtime.RichInt = 1
Here the compi...
When should we use mutex and when should we use semaphore
...used for one thread to signal another thread to run.
/* Task 1 */
pthread_mutex_lock(mutex_thing);
// Safely use shared resource
pthread_mutex_unlock(mutex_thing);
/* Task 2 */
pthread_mutex_lock(mutex_thing);
// Safely use shared resource
pthread_mutex_unlock(mutex_thing); // unlock mut...
Use of the MANIFEST.MF file in Java
...ins the default entries like this:
Manifest-Version: 1.0
Created-By: 1.7.0_06 (Oracle Corporation)
These are entries as “header:value” pairs. The first one specifies the manifest version and second one specifies the JDK version with which the JAR file is created.
Main-Class header:
When a JA...
ASP.NET MVC View Engine Comparison
...t.
Example:
Protected Overrides Function Body() As XElement
Return _
<body>
<h1>Hello, World</h1>
</body>
End Function
NDjango
Design Goals:
NDjango is an implementation of the
Django Template Language on the .NET
platform, using the F# la...
How to find Unused Amazon EC2 Security groups
...the same in command line as well
Boto Code
import boto
ec2 = boto.connect_ec2()
sgs = ec2.get_all_security_groups()
for sg in sgs:
print sg.name, len(sg.instances())
Output
Security-Group-1 0
Security-Group-2 1
Security-Group-3 0
Security-Group-4 3
...
Determine a string's encoding in C#
...///////// BOM/signature exists (sourced from http://www.unicode.org/faq/utf_bom.html#bom4)
if (b.Length >= 4 && b[0] == 0x00 && b[1] == 0x00 && b[2] == 0xFE && b[3] == 0xFF) { text = Encoding.GetEncoding("utf-32BE").GetString(b, 4, b.Length - 4); return Encodin...
Why would iterating over a List be faster than indexing through it?
...icient. For larger LinkedList -yes, for smaller it can work faster REVERSE_THRESHOLD is set 18 in java.util.Collections, it's weird to see so upvoted answer without the remark.
– bestsss
May 8 '12 at 9:28
...
Moving matplotlib legend outside of the axis makes it cutoff by the figure box
...ing for is adjusting the savefig call to:
fig.savefig('samplefigure', bbox_extra_artists=(lgd,), bbox_inches='tight')
#Note that the bbox_extra_artists must be an iterable
This is apparently similar to calling tight_layout, but instead you allow savefig to consider extra artists in the calculatio...
What is the difference between ELF files and bin files?
... answered Mar 15 '10 at 5:54
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What are Scala context and view bounds?
...like they were Scala collections. For example:
def f[CC <% Traversable[_]](a: CC, b: CC): CC = if (a.size < b.size) a else b
If one tried to do this without view bounds, the return type of a String would be a WrappedString (Scala 2.8), and similarly for Array.
The same thing happens even i...