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How to pass objects to functions in C++?
...s();
void uses(T const &param); // or optional(T param)
There's the least difference here between all situations, so choose whichever makes your life easiest.
Const by value is an implementation detail
void f(T);
void f(T const);
These declarations are actually the exact same function! W...
Custom HTTP headers : naming conventions
...e is no html "page" to temporarily write the results of debug code to - at least not one that is visible in a browser.
One approach is to write the data to a local log file and view that file later. Another is to temporarily add HTTP headers reflecting the data and variables being debugged.
I regu...
How to filter SQL results in a has-many-through relation
...fe data.)
Slight diversion from the naming schema in the question: student.id is student.stud_id and club.id is club.club_id here.
I named the queries after their author in this thread, with an index where there are two.
I ran all queries a couple of times to populate the cache, then I picked the be...
Why use #ifndef CLASS_H and #define CLASS_H in .h file but not in .cpp?
...
It doesn't - at least during the compilation phase.
The translation of a c++ program from source code to machine code is performed in three phases:
Preprocessing - The Preprocessor parses all source code for lines beginning with # and exe...
Why can't decimal numbers be represented exactly in binary?
...97, the cycle doesn't show itself until you've worked out the answer to at least 96 digits. (Actually, you'd need 96*2+1 = 193 digits to be sure.)
– Barry Brown
Sep 25 '09 at 17:04
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What is the difference between NTFS Junction Points and Symbolic Links?
...-existent target" characteristic? And are you saying that this is wrong at least when first creating a junction? If you're certain that that's the case in a specific environment (maybe for Windows XP or because of security settings) I'll make note of that but in my experience and from documentation ...
AngularJS : Initialize service with asynchronous data
...e care of for you, but this example works with no special dependencies, at least for a simple get. If you want a little more power for your request, load up an external library to help you out. But I don't think it's possible to access angular's $http or other tools in this context.
(SO related po...
Iterator invalidation rules
...pport reserve(n) which guarantees that no automatic resizing will occur at least until the size of the container grows to n. Caution should be taken with unordered associative containers because a future proposal will allow the specification of a minimum load factor, which would allow rehashing to o...
Why is reading lines from stdin much slower in C++ than Python?
...y random it-was-there-at-the-time test box.
I should add that there is at least one other significant difference between these styles of testing, and I can't say whether it is a benefit or fault; you have to decide this yourself:
When you run cat big_file | /usr/bin/time my_program, your program i...
How can I assign an ID to a view programmatically?
In an XML file, we can assign an ID to a view like android:id="@+id/something" and then call findViewById() , but when creating a view programmatically, how do I assign an ID?
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