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How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar
...based iPhone app. I'm not sure how to proceed. The app already has an NSFetchedResultsController with a predicate to retrieve the data for the primary TableView. I want to make sure I'm on the right path before I change too much code. I'm confused because so many of the examples are array-based ...
Macro vs Function in C
...hort _square_us(unsigned short a) { return a * a; }
/* ... long, char ... etc */
#define square(a) \
_Generic((a), \
float: _square_fl(a), \
double: _square_dbl(a), \
int: _square_i(a), \
...
Useful GCC flags for C
...
Always use -O or above (-O1, -O2, -Os, etc.). At the default optimization level, gcc goes for compilation speed and doesn't do enough analysis to warn about things like unitialized variables.
Consider making -Werror policy, as warnings that don't stop the compila...
Is it possible to implement dynamic getters/setters in JavaScript?
...//Calls the getter function.
console.log(obj.prop);
let copy = obj.prop;
//Etc.
//Calls the setter function.
obj.prop = 10;
++obj.prop;
//Etc.
Several things to note here:
You cannot use the value property in the property descriptor (not shown above) simultaneously with get and/or set; from the d...
retrieve links from web page using python and BeautifulSoup [closed]
...mple method to scrub the url list of the sites 'internal' navigation urls, etc.
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How to track down a “double free or corruption” error
...rs you can check this or this or any modern c++ compilers (e.g. gcc, clang etc.) documentations.
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How to use getJSON, sending data with post method?
...ntains the JSON object
//textStatus contains the status: success, error, etc
}, "json");
In that call, dataToBeSent could be anything you want, although if are sending the contents of a an html form, you can use the serialize method to create the data for the POST from your form.
var dataToBeSe...
In Python, how can you load YAML mappings as OrderedDicts?
... is derivative of the safe parser/dumper that knows about CommentedMap/Seq etc.
– Anthon
Jul 15 at 8:38
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Timer function to provide time in nano seconds using C++
...u are measuring code involving sleep, mutex lock, condition_variable wait, etc, the rdtsc clock is likely to have inaccurate conversions to other units. It is a good idea to set your measurements up so that you can easily change and compare clocks (as shown in this answer).
– ...
Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
...constant folding, transformation of a switch statement into binary search, etc. Thus the benefits to be gained by allowing the compiler to optimize data structures appear to be less tangible than traditional compiler optimizations.
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