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Where do I find the definition of size_t?
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From Wikipedia
The stdlib.h and stddef.h header files define a datatype called size_t1 which is used to represent the size of an object. Library functions that take sizes expect them to be of type size_t, and the sizeof operator evaluates to size_t.
The actual type of size_t is platform-dependent;...
Checking if a list is empty with LINQ
...t simply using the .Count method will be fast if the underlying source actually has a fast Count property. A valid optimization above would be to detect a few base types and simply use the .Count property of those, instead of the .Any() approach, but then fall back to .Any() if no guarantee can be m...
Spring Boot JPA - configuring auto reconnect
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The above suggestions did not work for me.
What really worked was the inclusion of the following lines in the application.properties
spring.datasource.testWhileIdle = true
spring.datasource.timeBetweenEvictionRunsMillis = 3600000
spring.datasource.validationQuery = SELECT 1...
What's the easiest way to install a missing Perl module?
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On Unix:
usually you start cpan in your shell:
# cpan
and type
install Chocolate::Belgian
or in short form:
cpan Chocolate::Belgian
On Windows:
If you're using ActivePerl on Windows, the PPM (Perl Package Manager) has much of t...
Mockito : how to verify method was called on an object created within a method?
...not suggesting that you modify the class just for unit testing. This is really a conversation about clean code and the SRP. Or.. is it the responsibility of method foo() in class Foo to construct a Bar object. If the answer is yes, then it's an implementation detail and you shouldn't worry about ...
Emulator error: This AVD's configuration is missing a kernel file
...be vague and I don't understand clearly.
I was following the steps to install the AVD according to the sites and I can't figure out what I missed. Please explain it to me in steps to follow.
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Should I commit or rollback a read transaction?
...should close it. Committing releases any locks you may have had, and is equally sensible with ReadUncommitted or Serializable isolation levels. Relying on implicit rollback - while perhaps technically equivalent - is just poor form.
If that hasn't convinced you, just imagine the next guy who insert...
Sass combining parent using ampersand (&) with type selectors
... to join your tag to .element instead of #id?
There's a function in Sass called selector-unify() that solves this. Using this with @at-root it is possible to target .element.
#id > .element {
@at-root #{selector-unify(&, div)} {
color: blue;
}
}
Will compile to:
#id > ...
Getting “Lock wait timeout exceeded; try restarting transaction” even though I'm not using a transac
...ion; autocommit does not disable transactions, it just makes them automatically commit at the end of the statement.
What is happening is, some other thread is holding a record lock on some record (you're updating every record in the table!) for too long, and your thread is being timed out.
You can...
How to get HTML 5 input type=“date” working in Firefox and/or IE 10
...nd it odd that input type="date" is still not supported in Firefox after all of this time. In fact, I don't think they added in much (if any) of the HTML 5 new types on an input element. Not surprised that it is not supported in IE10. So, my question is...
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