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Is it true that one should not use NSLog() on production code?
...mber to make it easier to track down log statements.
#define DEBUG_MODE
#ifdef DEBUG_MODE
#define DebugLog( s, ... ) NSLog( @"<%p %@:(%d)> %@", self, [[NSString stringWithUTF8String:__FILE__] lastPathComponent], __LINE__, [NSString stringWithFormat:(s), ##__VA_ARGS__] )
#else
#define...
How do I use a custom deleter with a std::unique_ptr member?
...very time, it can't inline (since the template can't specialize to the specific function, only the signature), and must call the function through the pointer (more costly than direct call). Both rici and Deduplicator's answers avoid all of these costs by specializing to a functor.
...
Can I simultaneously declare and assign a variable in VBA?
I'm new to VBA and want to know if I can convert the following declaration and assignment into one line:
5 Answers
...
Check for changes to an SQL Server table?
...an SQL Server database for changes to a table without using triggers or modifying the structure of the database in any way? My preferred programming environment is .NET and C#.
...
How to initialize a private static const map in C++?
...;< A::myMap[1]; into main(). It gives an error. The error doesn't occur if I remove the const qualifiers, so I guess map's operator[] can't handle a const map, at least, not in the g++ implementation of the C++ library.
– Craig McQueen
Oct 31 '13 at 1:08
...
SQLAlchemy: Creating vs. Reusing a Session
...ssion, except that its verbose and redundant, and I wanted to stop the proliferation of small-scale "helpers" that each approached the issue of this redundancy in some new and more confusing way.
So sessionmaker() is just a tool to help you create Session objects when you need them.
Next part. I...
jQuery parent of a parent
...entation:
Closest works by first looking at the current element to see if it matches the specified expression, if so it just returns the element itself. If it doesn't match then it will continue to traverse up the document, parent by parent, until an element is found that matches the specified e...
Open a link in browser with java button? [duplicate]
... desktop = Desktop.isDesktopSupported() ? Desktop.getDesktop() : null;
if (desktop != null && desktop.isSupported(Desktop.Action.BROWSE)) {
try {
desktop.browse(uri);
return true;
} catch (Exception e) {
e.printStackTrace();
}
...
What is the difference between Serializable and Externalizable in Java?
What is the difference between Serializable and Externalizable in Java?
11 Answers
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Are there strongly-typed collections in Objective-C?
...rics' to Objective-C. In Objective-C, they will generate compiler warnings if there is a type mismatch.
NSArray<NSString*>* arr = @[@"str"];
NSString* string = [arr objectAtIndex:0];
NSNumber* number = [arr objectAtIndex:0]; // Warning: Incompatible pointer types initializing 'NSNumber *' wi...