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Haskell: Lists, Arrays, Vectors, Sequences
...VU; main = print (VU.cons 'a' (VU.replicate 100 'b')) compiles to a single allocation of 404 bytes (101 chars) in Core: hpaste.org/65015
– FunctorSalad
Mar 9 '12 at 6:11
...
Is there ever a time where using a database 1:1 relationship makes sense?
...ty is the capital of a country, for example.
Some kinds of scarce resource allocation, e.g. one employee can be assigned only one company car at a time (e.g. one truck per trucker, one taxi per cab driver, etc.). A colleague gave me this example recently.
Marriage (at least in legal jurisdictions wh...
Pointer expressions: *ptr++, *++ptr and ++*ptr
... but toggling my accepted answer. :) Thanks again.
– allocated
Aug 28 '13 at 17:07
26
+1 I think ...
Why covariance and contravariance do not support value type
...inter) contiguously in memory; the objects being pointed to are separately allocated.
The other (related) issue(*) is that (almost) all Reference types have the same representation for variance purposes and much code does not need to know of the difference between types, so co- and contra-variance...
When do I use a dot, arrow, or double colon to refer to members of a class in C++?
...how to use them. And where I said -> can only be used by a pointer that allocated on the heap by new? Below, the second item, I think I really make it clear that -> is for pointer. And before you downvote, you better try className::non_static_member_function() with c++14 by yourself. Referenc...
stringstream, string, and char* conversion confusion
...the temporary string const, because any changes to it might cause it to re-allocate and thus render cstr invalid. It is therefor safer to not to store the result of the call to str() at all and use cstr only until the end of the full expression:
use_c_str( stringstream.str().c_str() );
Of course,...
What are the use cases for selecting CHAR over VARCHAR in SQL?
...user comes along later and puts more data into that column SQL has already allocated space for it and in it goes.
Another reason to use CHAR is similar to the second reason. If a programmer or user does a "batch" update to millions of rows, adding some sentence to a note field for example, you won'...
What is the difference between Google App Engine and Google Compute Engine?
...e docker to install s/w in GAE, does it mean google takes care of creating/allocating a linux instance with basic configurations and then runs docker on tops of it? In essence, compute engine adds additional responsibility of VM configs. Am I right?
– old-monk
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How to “warm-up” Entity Framework? When does it get “cold”?
... will die together with the AppDomain.
All in all you should make sure to allocate contexts frequently and use them only for a short time, that you can start your application quickly, that you compile queries that are rarely used and provide pregenerated views for queries that are performance criti...
Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?
...ntegerCache.high (calculated at runtime with minimum value 127) then a pre-allocated (cached) object is returned. So when you use 127 as parameter, you're getting two references to same cached object and getting true in the comparison of the references.
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