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How do you use the “WITH” clause in MySQL?
...it in their release branch. Apparently they "showed off" this "feature" at PHPCONFERENCE2010 in London. This comment on that bug report is telling. [7 Oct 2008 19:57] Stuart Friedberg: "Valeriy, you guys must have an unbelieveable backlog. Thirty three months between filing a request and getting a ...
Difference between char* and const char*?
...e points, as it could result in Undefined Behavior.
String literals may be allocated in read only memory regions (implementation defined) and an user program should not modify it in anyway. Any attempt to do so results in Undefined Behavior.
So the only difference in that case (of usage with s...
Making the Android emulator run faster
...for the AVD Manager to pick up the Intel Atom (x86) CPU option. Tip: Don't allocate too much RAM. With 1GB RAM, emulator failed to start (with GPU) but with 512MB RAM it ran smoothly and booted really quickly (again with GPU).
– ADTC
Jul 28 '13 at 16:11
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Can a pointer to base point to an array of derived objects?
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You cannot index like that. You have allocated an array of Rectangles and stored a pointer to the first in shapes. When you do shapes[1] you're dereferencing (shapes + 1). This will not give you a pointer to the next Rectangle, but a pointer to what would be the...
How do you crash a JVM?
... as blowing the stack via recursion, running out of heap memory via object allocations, or simply throwing RuntimeException. But this just causes the JRE to exit with a StackOverflowError or similar exception, which, again is not really a crash.
So what's left? I'd really love to hear what the auth...
Way to go from recursion to iteration
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Any ideas on how to work out the maximum stack to allocate for a particular recursion?
– lexicalscope
Mar 19 '12 at 15:36
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recursion versus iteration
...w the return back to the caller functions. In many cases, memory has to be allocated and copied to implement scope isolation.
Some optimizations, like tail call optimization, make recursions faster but aren't always possible, and aren't implemented in all languages.
The main reasons to use recursi...
In Clojure, when should I use a vector over a list, and the other way around?
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Vectors have O(1) random access times, but they have to be preallocated. Lists can be dynamically extended, but accessing a random element is O(n).
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Get size of all tables in database
... i.object_id = p.OBJECT_ID AND i.index_id = p.index_id
INNER JOIN
sys.allocation_units a ON p.partition_id = a.container_id
LEFT OUTER JOIN
sys.schemas s ON t.schema_id = s.schema_id
WHERE
t.NAME NOT LIKE 'dt%'
AND t.is_ms_shipped = 0
AND i.OBJECT_ID > 255
GROUP BY
t...
What is a C++ delegate?
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std::function doesn't always dynamically allocate
– Lightness Races in Orbit
Jul 13 '19 at 14:56
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