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Compiling C++11 with g++
I'm trying to update my C++ compiler to C++11.
I have searched a bit and I have come to the conclusion that I have to use the flag -std=c++0x or -std=gnu++0x , but I don't know many things about flags. Can anyone help me? (I'm using Ubuntu 12.04.)
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How to articulate the difference between asynchronous and parallel programming?
Many platforms promote asynchrony and parallelism as means for improving responsiveness. I understand the difference generally, but often find it difficult to articulate in my own mind, as well as for others.
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Best way to change the background color for an NSView
...l but the transparency didn't work. I'm coming to Cocoa from Cocoa Touch, and surprised to see that in some ways the Cocoa Touch framework is more complete (!). I was thinking of making a class extension for NSView that would allow you to set backgroundColor like you can an NSWindow or UIView, but...
Why, Fatal error: Class 'PHPUnit_Framework_TestCase' not found in …?
...PDATE
As of PHPUnit 3.5, there is a built-in autoloader class that will handle this for you:
require_once 'PHPUnit/Autoload.php';
Thanks to Phoenix for pointing this out!
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JSON serialization of Google App Engine models
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A simple recursive function can be used to convert an entity (and any referents) to a nested dictionary that can be passed to simplejson:
import datetime
import time
SIMPLE_TYPES = (int, long, float, bool, dict, basestring, list)
def to_dict(model):
output = {}
for key, prop...
boolean in an if statement
...-empty string value, any object or array reference, etc...
On the other hand:
if (booleanValue === true)
This will only satisfy the if condition if booleanValue is exactly equal to true. No other truthy value will satisfy it.
On the other hand if you do this:
if (someVar == true)
Then, wha...
#ifdef in C#
...defined");
#elif (DEBUG && VC_V7)
Console.WriteLine("DEBUG and VC_V7 are defined");
#else
Console.WriteLine("DEBUG and VC_V7 are not defined");
#endif
}
}
Only useful for excluding parts of methods.
If you use #if to exclude some method from compilation then you will h...
Map implementation with duplicate keys
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You are searching for a multimap, and indeed both commons-collections and Guava have several implementations for that. Multimaps allow for multiple keys by maintaining a collection of values per key, i.e. you can put a single object into the map, but you retr...
getting the last item in a javascript object
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No. Order is not guaranteed in JSON and most other key-value data structures, so therefore the last item could sometimes be carrot and at other times be banana and so on. If you need to rely on ordering, your best bet is to go with arrays. The power of key-val...
Angular JS break ForEach
I have an angular foreach loop and i want to break from loop if i match a value. The following code does not work.
21 Answe...