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Is there an SQLite equivalent to MySQL's DESCRIBE [table]?
...ee the details for a table, like MySQL's DESCRIBE [table] . PRAGMA table_info [table] isn't good enough, as it only has basic information (for example, it doesn't show if a column is a field of some sort or not). Does SQLite have a way to do this?
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How to send a stacktrace to log4j?
...definitely the correct answer. All logger methods such as error(), warn(), info(), debug() take Throwable as a second parameter:
try {
...
} catch (Exception e) {
logger.error("error: ", e);
}
However, you can extract stacktrace as a String as well. Sometimes it could be useful if you wish to ta...
Try catch statements in C
...e has a number of down sides (but is a fun mental exercise):
It will not free allocated memory as there are no deconstructors being called.
You can't have more than 1 try/catch in a scope (no nesting)
You can't actually throw exceptions or other data like in C++
Not thread safe at all
You are sett...
Why is early return slower than else?
...Starting with:
j = hash % 32
perturb = hash
Repeat this until we find a free slot:
j = (5*j) + 1 + perturb;
perturb >>= 5;
use j % 2**i as the next table index;
which gives it 17 to use as the next index. Fortunately that's free so the loop only repeats once. The hash table size is a pow...
__FILE__, __LINE__, and __FUNCTION__ usage in C++
...but debugging messages. I have done it, but I try not to show that kind of information to customers or end users. My customers are not engineers and are sometimes not computer savvy. I might log this info to the console, but, as I said, reluctantly except for debug builds or for internal tools. I su...
Good tutorial for using HTML5 History API (Pushstate?) [closed]
...d demo are easier and to the point.
History chapter - http://diveintohtml5.info/history.html
and history demo - http://diveintohtml5.info/examples/history/fer.html
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What is included in JCenter repository in Gradle?
...s are here)
jcenter is the public repository hosted at bintray that is free to use
for open source library publishers. There are many good reasons to use
jcenter over Maven Central. Here are some of the major ones:
jcenter delivers library through CDN which means improvements in CI ...
Is “argv[0] = name-of-executable” an accepted standard or just a common convention?
...ram name is implementation defined in the standard so an implementation is free to do what it wants, including allowing something in there that isn't the actual name - I thought I'd made that clear in the penultimate sentence.
– paxdiablo
Jan 12 '10 at 23:00
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Xcode changes unmodified storyboard and XIB files
... You could get the app from my web page (see profile). The app is 100% free.
– Marcin Olawski
Oct 24 '13 at 10:36
1
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Is it OK to leave a channel open?
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Go is garbage collected, so you don't really have to 'free' anything.
There is possibility to close channels, but it's mostly used as - close(channel) - tell the goroutine (or main program) that nothing else will be sent on that channel.
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