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What exactly is a reentrant function?
...able and correct (no dangling pointers, no contradicting member variables, etc.).
7.3. Make sure all your objects are correctly encapsulated
No one else should have access to their internal data:
// bad
int & MyObject::getCounter()
{
return this->counter;
}
// ...
How to check for a valid Base64 encoded string
... // Base64 string's length is always divisible by four, i.e. 8, 16, 20 etc.
// If it is not you can return false. Quite effective
// Further, if it meets the above criterias, then test for spaces.
// If it contains spaces, it is not base64
if (value == null || va...
How do I change the number of open files limit in Linux? [closed]
...For instance, the hard open file limit on Solaris can be set on boot from /etc/system.
set rlim_fd_max = 166384
set rlim_fd_cur = 8192
On OS X, this same data must be set in /etc/sysctl.conf.
kern.maxfilesperproc=166384
kern.maxfiles=8192
Under Linux, these settings are often in /etc/security/...
Remove Identity from a column in a table
...pt the table to be created; rename everything e.g. 'MyTable2', 'MyIndex2', etc.
Remove the IDENTITY specification.
You should now have two "identical"-ish tables, one full, the other empty with no IDENTITY.
Run ALTER TABLE [Original] SWITCH TO [Original2]
Now your original table will be empty and th...
Python SQL query string formatting
...e keywords that begin a clause should be right-aligned and the field names etc, should be left aligned. This looks very neat and is easier to debug as well.
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std::wstring VS std::string
... than the same UTF-16 one.
Still, for other languages (chinese, japanese, etc.), the memory used will be either the same, or slightly larger for UTF-8 than for UTF-16.
All in all, UTF-16 will mostly use 2 and occassionally 4 bytes per characters (unless you're dealing with some kind of esoteric la...
Static Indexers?
...nfigurationManager singleton;
//indexer
object this[string name] { ... etc ... }
}
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How to get Maven project version to the bash command line
...
I'm removing all logging (INFO,WARNING,etc) and 'Download' messages with mvn org.apache.maven.plugins:maven-help-plugin:2.1.1:evaluate -Dexpression=project.version|grep -Ev '(^\[|Download\w+:)'
– Chadwick
Mar 29 '13 at 18:58
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How do I write a correct micro-benchmark in Java?
... iterations.)
Rule 2: Always run with -XX:+PrintCompilation, -verbose:gc, etc., so you can verify that the compiler and other parts of the JVM are not doing unexpected work during your timing phase.
Rule 2.1: Print messages at the beginning and end of timing and warmup phases, so you can verify th...
How to select label for=“XYZ” in CSS?
...(for instance, if it has spaces or brackets in it, or starts with a digit, etc.), you need quotes around the value:
label[for="field[]"]
{
/* ...definitions here... */
}
They can be single or double quotes.
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