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What is the use of having destructor as private?
... //
}
int main ()
{
myclass m; // error: ctor and dtor are private
myclass* mp = new myclass (..); // error: private ctor
myclass* mp = myclass::create(..); // OK
delete mp; // error: private dtor
myclass::destroy...
iOS app error - Can't add self as subview
... @Kalle This solution works for push/pop. But how to solve this error if I use segue?
– Geek
Mar 14 '14 at 16:37
...
What is the formal difference in Scala between braces and parentheses, and when should they be used?
...+
2
3
}
method(
1 +
2
3
)
The first compiles, the second gives error: ')' expected but integer literal found. The author wanted to write 1 + 2 + 3.
One could argue it’s similar for multi-parameter methods with default arguments; it’s impossible to accidentally forget a comma to separ...
Transaction marked as rollback only: How do I find the cause
...ataAccessException exception on a read-only transaction and I got the same error. Changing my annotation to @Transactional(readOnly = true, noRollbackFor = EmptyResultDataAccessException.class) fixed the problem.
– cbmeeks
Oct 25 '16 at 17:57
...
Several ports (8005, 8080, 8009) required by Tomcat Server at localhost are already in use
I'm getting the following error when I try to run a simple JSP program on Tomcat in Eclipse.
33 Answers
...
What is the reason for a red exclamation mark next to my project in Eclipse?
...stly for built problems only. See here for more details. It is about built error decorater seen in eclipse.
An extract from that page:
Build path problems are sometimes easy to miss among other problems in
a project. The Package Explorer and Project Explorer views now show a
new decorator o...
How to declare a variable in a PostgreSQL query
... set session my.vars.id = '1'; to set session my.user.id = '1'; will yield ERROR: syntax error at or near "user"
– dominik
Jul 9 '17 at 19:13
2
...
“Bitmap too large to be uploaded into a texture”
I'm loading a bitmap into an ImageView, and seeing this error. I gather this limit relates to a size limit for OpenGL hardware textures (2048x2048). The image I need to load is a pinch-zoom image of about 4,000 pixels high.
...
What algorithm gives suggestions in a spell checker?
... using "bad" hash functions.
The idea is to look at the types of spelling errors people make, and to design hash functions that would assign an incorrect spelling to the same bucket as its correct spelling.
For example, a common mistake is to use the wrong vowel, like definate instead of definite....
“Inner exception” (with traceback) in Python?
... raise.
import sys
class MyException(Exception): pass
try:
raise TypeError("test")
except TypeError, e:
raise MyException(), None, sys.exc_info()[2]
Always do this when catching one exception and re-raising another.
...