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How does Java handle integer underflows and overflows and how would you check for it?
...^ (left - right))) < 0;
}
}
(you can substitute int by long to perform the same checks for long)
If you think that this may occur more than often, then consider using a datatype or object which can store larger values, e.g. long or maybe java.math.BigInteger. The last one doesn't overflow,...
Remove characters from NSString?
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Please can you format code snippets in a monospaced font for legibility. At present distinguishing the first string is a little tricky
– Mike Abdullah
May 30 '09 at 9:30
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Is Redis just a cache?
...n you to need provide a production ready solution very fast and for any performance related issues as you can always use it to cache data.
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Why does one often see “null != variable” instead of “variable != null” in C#?
...m in the ways of modern languages, and suggest they write the more natural form in future.
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Why can't Python find shared objects that are in directories in sys.path?
...udes /usr/local/lib, and if it doesn't, add it and try again.
Some more information (source):
In Linux, the environment variable
LD_LIBRARY_PATH is a colon-separated
set of directories where libraries
should be searched for first, before
the standard set of directories; this
is useful...
Rails: How do I create a default value for attributes in Rails activerecord's model? [duplicate]
...ault values for only new records so that they are available when rendering forms. before_save and before_create are too late and will not work if you want default values to show up in input fields.
after_initialize do
if self.new_record?
# values will be available for new record forms.
se...
JavaScript isset() equivalent
...od, this method is defined up in the prototype chain, because obj inherits form Object.prototype.
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jQuery change input text value
... a book) about jquery where I can really learn about selectors? especially form selectorS?
– Joricam
Apr 18 '11 at 21:52
7
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Access lapply index names inside FUN
...ke function(x){parent.frame()$i+0} or function(x){--parent.frame()$i}.
Performance Impact
Will the forced duplication cause performance loss? Yes! here are the benchmarks:
> x <- as.list(seq_len(1e6))
> system.time( y <- lapply(x, function(x){parent.frame()$i[]}) )
user system elapse...
Simple example of threading in C++
...h execution, therefore blocks its own execution.
t1.join();
}
More information about std::thread here
On GCC, compile with -std=c++0x -pthread.
This should work for any operating-system, granted your compiler supports this (C++11) feature.
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