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Are Exceptions in C++ really slow
...tors to fetch, scattered around memory, and complex operations to run (basically a dynamic_cast test for each handler)
So, mostly cache misses, and thus not trivial compared to pure CPU code.
Note: for more details, read the TR18015 report, chapter 5.4 Exception Handling (pdf)
So, yes, exception...
Disable click outside of bootstrap modal area to close modal
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@mystikacid You should ask a new question for that. It will be better to help you with your problem and other users searching a similar solution.
– Doguita
Oct 7 '15 at 19:29
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What is the difference between require() and library()?
...t; test <- library("abc")
Error in library("abc") : there is no package called 'abc'
> test
Error: object 'test' not found
> test <- require("abc")
Loading required package: abc
Warning message:
In library(package, lib.loc = lib.loc, character.only = TRUE, logical.return = TRUE, :
the...
Understanding the map function
...ld recommend using list comprehensions instead:
map(f, iterable)
is basically equivalent to:
[f(x) for x in iterable]
map on its own can't do a Cartesian product, because the length of its output list is always the same as its input list. You can trivially do a Cartesian product with a list co...
Apache Commons equals/hashCode builder [closed]
...n allows for short-circuiting the evaluation if an earlier Object.equals() call returns false (to be fair: commons / lang has an ObjectUtils.equals(obj1, obj2) method with identical semantics which could be used instead of EqualsBuilder to allow short-circuiting as above).
So: yes, the commons lang...
jQuery - Illegal invocation
...his helps me remember that it represents a jQuery object which helps avoid calling a method on something that's a string or trying to manipulate a string with .toString() or something when it's a jQuery object.
– timbrown
Apr 16 '13 at 15:13
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How to set default values in Rails?
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Try it. It'll work on new model objects called with the .new class method. That blog post's discussion about ActiveRecord directly calling .allocate was about model objects loaded with existing data from the database. (And it's a terrible idea for ActiveRecord to...
Why does Clojure have “keywords” in addition to “symbols”?
... Clojure documentation for Keywords and Symbols.
Keywords are symbolic identifiers that evaluate to themselves. They provide very fast equality tests...
Symbols are identifiers that are normally used to refer to something else. They can be used in program forms to refer to function paramete...
Run java jar file on a server as background process
... Thanks Anton,currntly im stopping the server by killing the process id.i don't think it's best practice.is thery command to to stop the server?
– Bernad Ali
Aug 25 '12 at 5:01
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Is there an Eclipse line-width marker?
...t is a vertical line to be drawn in the editor showing where the max line width while I am typing, not just when I run the formmater. I know this feature is available in some capacity because it is displayed in the code formatter property page.
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