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How do I detect unsigned integer multiply overflow?

I was writing a program in C++ to find all solutions of a b = c , where a , b and c together use all the digits 0-9 exactly once. The program looped over values of a and b , and it ran a digit-counting routine each time on a , b and ab to check if the digits condition was satisfied. ...
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How does functools partial do what it does?

...xtend(extra_args) return func(*args) return wrapper So, by calling partial(sum2, 4) you create a new function (a callable, to be precise) that behaves like sum2, but has one positional argument less. That missing argument is always substituted by 4, so that partial(sum2, 4)(2) == sum2...
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java get file size efficiently

...97.044 URL sum: 95534, per Iteration: 382.136 File must be caching the calls to the filesystem, while channels and URL have some overhead. Code: import java.io.*; import java.net.*; import java.util.*; public enum FileSizeBench { LENGTH { @Override public long getResult() ...
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How do I change Bootstrap 3 column order on mobile layout?

... for the sake of the simple example in the linked jsfiddle, but the actual site content I was working on varies in height in all 5 tags. It renders properly with relatively large variance in tag heights, especially image and desc. Note 2: Depending on your layout, you may have a consistent enough co...
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jQuery - replace all instances of a character in a string [duplicate]

...round the string, as replace is not a jQuery method, so that won't work at all.) share | improve this answer | follow | ...
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How to create a video from images with FFmpeg?

...pix_fmt yuv420p out.ogg Your images should of course be sorted alphabetically, typically as: 0001-first-thing.jpg 0002-second-thing.jpg 0003-and-third.jpg and so on. I would also first ensure that all images to be used have the same aspect ratio, possibly by cropping them with imagemagick or n...
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What do (lambda) function closures capture?

...the name and scope of the variable, not the object it's pointing to. Since all the functions in your example are created in the same scope and use the same variable name, they always refer to the same variable. EDIT: Regarding your other question of how to overcome this, there are two ways that com...
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Failed to load the JNI shared Library (JDK)

...) being loaded into an application. Now imagine a 32bit function wants to call a 64bit one, or alike. Same with alignment and datasizes and everything. I guess I dont have to tell anything more =P – imacake Mar 17 '12 at 17:15 ...
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Understanding the main method of python [duplicate]

...n other programs, and also include code to evaluate only when the file is called as a standalone script. It's important to understand that all of the code above the if __name__ line is being executed, evaluated, in both cases. It's evaluated by the interpreter when the file is imported or when it'...
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How to get parameters from a URL string?

...ery'], $query); echo $query['email']; If you want to get the $url dynamically with PHP, take a look at this question: Get the full URL in PHP share | improve this answer | ...