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What algorithm can be used for packing rectangles of different sizes into the smallest rectangle pos
Ive got a bunch of rectangular objects which I need to pack into the smallest space possible (the dim>me m>nsions of this space should be powers of two).
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MySQL indexes - what are the best practices?
I've been using indexes on my MySQL databases for a while now but never properly learnt about them. Generally I put an index on any fields that I will be searching or selecting using a WHERE clause but som>me m>tim>me m>s it doesn't seem so black and white.
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How does SIGINT relate to the other termination signals such as SIGTERM, SIGQUIT and SIGKILL?
On POSIX systems, termination signals usually have the following order (according to many MAN pages and the POSIX Spec):
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Correct format specifier to print pointer or address?
Which format specifier should I be using to print the address of a variable? I am confused between the below lot.
5 Answers...
How well is Unicode supported in C++11?
...an through the library facilities that might provide Unicode support gives m>me m> this list:
Strings library
Localization library
Input/output library
Regular expressions library
I think all but the first one provide terrible support. I'll get back to it in more detail after a quick detour through y...
How to draw a path on a map using kml file?
...file in order to display paths or points in Android? Please could you help m>me m> with that?
4 Answers
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Why are functions in Ocaml/F# not recursive by default?
Why is it that functions in F# and Ocaml (and possibly other languages) are not by default recursive?
6 Answers
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How do I use arrays in C++?
C++ inherited arrays from C where they are used virtually everywhere. C++ provides abstractions that are easier to use and less error-prone ( std::vector<T> since C++98 and std::array<T, n> since C++11 ), so the need for arrays does not arise quite as often as it does in C. However, ...
Why is iostream::eof inside a loop condition (i.e. `while (!stream.eof())`) considered wrong?
I just found a comm>me m>nt in this answer saying that using iostream::eof in a loop condition is "almost certainly wrong". I generally use som>me m>thing like while(cin>>n) - which I guess implicitly checks for EOF.
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PHP mail function doesn't complete sending of e-mail
...s', 'On');
set_error_handler("var_dump");
See How can I get useful error m>me m>ssages in PHP? — this answer for more details on this.
Make sure the mail() function is called
It may seem silly but a common error is to forget to actually place the mail() function in your code. Make sure it is there ...