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Java Class.cast() vs. cast operator
...t way in this case would be to do an instance of check first like this: if (cls.isInstance(o)){ return cls.cast(o); } Except if you're sure the type will be correct, of course.
– Puce
Jan 19 '12 at 8:57
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std::string to char*
...ar *; you aren't allowed to change the C-style string returned by c_str(). If you want to process it you'll have to copy it first:
std::string str = "string";
char *cstr = new char[str.length() + 1];
strcpy(cstr, str.c_str());
// do stuff
delete [] cstr;
Or in modern C++:
std::vector<char>...
Why does integer overflow on x86 with GCC cause an infinite loop?
...umes you won't cause undefined behavior, and optimizes away the loop test. If you really want wraparound, pass -fwrapv to g++ or gcc when compiling; this gives you well-defined (twos-complement) overflow semantics, but can hurt performance.
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Returning from a finally block in Java
...you provided are reason enough to not use flow-control from finally.
Even if there's a contrived example where it's "better," consider the developer who has to maintain your code later and who might not be aware of the subtleties. That poor developer might even be you....
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How can I autoformat/indent C code in vim?
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What is the difference?
– Ton van den Heuvel
Mar 1 '10 at 13:35
3
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Passing an array to a query using a WHERE clause
...
The identifiers are still a quoted list, so it comes out as "WHERE id IN ( '1,2,3,4' )", for example. You need to quote each identifier separately, or else ditch the quotes inside the parentheses.
– Rob
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How do I alias commands in git?
...mand:
$ git config --global alias.st status
On unix, use single quotes if the alias has a space:
$ git config --global alias.ci 'commit -v'
On windows, use double quotes if the alias has a space or a command line argument:
c:\dev> git config --global alias.ci "commit -v"
The alias comma...
Pass An Instantiated System.Type as a Type Parameter for a Generic Class
The title is kind of obscure. What I want to know is if this is possible:
6 Answers
6
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How do I conditionally apply CSS styles in AngularJS?
...The user will check checkboxes to indicate which items should be deleted. If a checkbox is unchecked, that item should revert back to its normal look.
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Intercept page exit event
...on message goes here.",
e = e || window.event;
// For IE and Firefox
if (e) {
e.returnValue = message;
}
// For Safari
return message;
};
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