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How to handle Objective-C protocols that contain properties?
...
Here's an example of mine that works perfectly, the protocol definition first of all:
@class ExampleClass;
@protocol ExampleProtocol
@required
// Properties
@property (nonatomic, retain) ExampleClass *item;
@end
Below is a workin...
Apache Spark: map vs mapPartitions?
...answered Jan 17 '14 at 19:46
Alexey RomanovAlexey Romanov
147k3030 gold badges247247 silver badges403403 bronze badges
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Why does Python print unicode characters when the default encoding is ASCII?
...anks to bits and pieces from various replies, I think we can stitch up an explanation.
By trying to print an unicode string, u'\xe9', Python implicitly try to encode that string using the encoding scheme currently stored in sys.stdout.encoding. Python actually picks up this setting from the enviro...
List changes unexpectedly after assignment. How do I clone or copy it to prevent this?
...ew_list = old_list.copy()
You can slice it:
new_list = old_list[:]
Alex Martelli's opinion (at least back in 2007) about this is, that it is a weird syntax and it does not make sense to use it ever. ;) (In his opinion, the next one is more readable).
You can use the built in list() function:
n...
What is code coverage and how do YOU measure it?
... coverage is a measurement of how many lines/blocks/arcs of your code are executed while the automated tests are running.
Code coverage is collected by using a specialized tool to instrument the binaries to add tracing calls and run a full set of automated tests against the instrumented product. A ...
JavaScript variables declare outside or inside loop?
...pt or ActionScript.
var is a directive for the parser, and not a command executed at run-time. If a particular identifier has been declared var once or more anywhere in a function body(*), then all use of that identifier in the block will be referring to the local variable. It makes no difference w...
C++ Dynamic Shared Library on Linux
...to perform static linkage */
virtual void DoSomething();
private:
int x;
};
#endif
myclass.cc
#include "myclass.h"
#include <iostream>
using namespace std;
extern "C" MyClass* create_object()
{
return new MyClass;
}
extern "C" void destroy_object( MyClass* object )
{
delete obj...
How to get the concrete class name as a string? [duplicate]
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instance.__class__.__name__
example:
>>> class A():
pass
>>> a = A()
>>> a.__class__.__name__
'A'
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Sorting dictionary keys in python [duplicate]
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my_list = sorted(dict.items(), key=lambda x: x[1])
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What's the use of do while(0) when we define a macro? [duplicate]
I'm reading the linux kernel and I found many macros like this:
2 Answers
2
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