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When do we have to use copy constructors?
...ill be copied), so the first to be destroyed copy sharing the buffer will call delete[] successfully and the second will run into undefined behavior. You need deep copying copy constructor (and assignment operator as well).
Class::Class( const Class& another )
{
stored = new char[strlen(ano...
How to keep onItemSelected from firing off on a newly instantiated Spinner?
...ore setting up the listener.
That being said, a simple boolean flag would allow you to detect the rogue first selection event and ignore it.
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What is the “volatile” keyword used for?
...optimisation would still be valid with i marked as volatile. In Java it is all about happens-before relationships.
– Tom Hawtin - tackline
Aug 7 '10 at 14:39
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Why is i++ not atomic?
... the argument that i++ should have been designed and documented as specifically performing an atomic increment, so that a non-atomic increment is performed using i = i + 1. However, this would break the "cultural compatibility" between Java, and C and C++. As well, it would take away a convenient n...
How to remove EXIF data without recompressing the JPEG?
...ress it, as recompressing the JPEG will degrade the quality, as well as usually increasing the file size.
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How to convert char to int?
...at everyone is forgeting is explaining WHY this happens.
A Char, is basically an integer, but with a pointer in the ASCII table. All characters have a corresponding integer value as you can clearly see when trying to parse it.
Pranay has clearly a different character set, thats why HIS code does...
Split string to equal length substrings in Java
...tch.
Both lookbehind and \G are advanced regex features, not supported by all flavors. Furthermore, \G is not implemented consistently across the flavors that do support it. This trick will work (for example) in Java, Perl, .NET and JGSoft, but not in PHP (PCRE), Ruby 1.9+ or TextMate (both Onigu...
Redis connection to 127.0.0.1:6379 failed - connect ECONNREFUSED
...
After you install redis, type from terminal:
redis-server
and you'll have redis running
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How are ssl certificates verified?
...private key of a trusted certificate authority.
Your web browser comes installed with the public keys of all of the major certificate authorities. It uses this public key to verify that the web server's certificate was indeed signed by the trusted certificate authority.
The certificate contains the...
Split value from one field to two
...d Apr 23 '10 at 7:31
Daniel VassalloDaniel Vassallo
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