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C++ catch blocks - catch exception by value or reference? [duplicate]
...yException which inherits from CustomException and overrides items like an error code. If a MyException type was thrown your catch block would cause it to be converted to a CustomException instance which would cause the error code to change.
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Why can't overriding methods throw exceptions broader than the overridden method?
...s Sub4 extends Sub2 {
@Override
public void test() throws AssertionError {
// Unchecked Exception IS-A RuntimeException or IS-A Error
System.out.println("Sub4.test()");
}
}
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How does “do something OR DIE()” work in PHP?
...atement after OR. A block statement will fail syntax checking (e.g. actual error message could be Parse error: syntax error, unexpected '{' in ...)
– Scott Chu
May 21 '12 at 17:26
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How to compare variables to undefined, if I don’t know whether they exist? [duplicate]
...ere.
}
Note that typeof always returns a string, and doesn't generate an error if the variable doesn't exist at all.
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Android accelerometer accuracy (Inertial navigation)
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You get position by integrating the linear acceleration twice but the error is horrible. It is useless in practice.
Here is an explanation why (Google Tech Talk) at 23:20. I highly recommend this video.
It is not the accelerometer noise that causes the problem but the gyro white noise, see su...
IntelliJ not recognizing a particular file correctly, instead its stuck as a text file
...resolution; IntelliJ 13. When trying to create the file, I encountered the error 'Unable to parse template "Interface" Selected class file name mapped to not java'. Couldn't find that error message anywhere in Google, so posting it here in case someone else needs it.
– Knetic
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Apache shows PHP code instead of executing it
...member the extension but I think it's .so.
Also check in /var/log/apache2/error.log to see if you have any other errors.
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Read whole ASCII file into C++ std::string [duplicate]
... "most vexing parse", which in this case won't actually give you a compile error like it usually does, but will give you interesting (read: wrong) results.
Following KeithB's point in the comments, here's a way to do it that allocates all the memory up front (rather than relying on the string class...
How to extract img src, title and alt from html using php? [duplicate]
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Call this function beforehand to handle errors gracefully: libxml_use_internal_errors( true );. You can also loop over those XML errors with libxml_get_errors()
– Matt
Jan 13 '12 at 17:10
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Traits vs. interfaces
...s of several different classes.
For example:
trait ToolKit
{
public $errors = array();
public function error($msg)
{
$this->errors[] = $msg;
return false;
}
}
You can have and use this "error" method in any class that uses this trait.
class Something
{
us...