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What is the bit size of long on 64-bit Windows?
...icial site) say that long are indeed 64 bits when compiling for a 64-bit CPU. I looked up what it was on 64-bit Windows and found
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Verify if a point is Land or Water in Google Maps
...and it is working not too bad... you can improve the test if you have more cpu to waste by adding pixels.
function isItWatter($lat,$lng) {
$GMAPStaticUrl = "https://maps.googleapis.com/maps/api/staticmap?center=".$lat.",".$lng."&size=40x40&maptype=roadmap&sensor=false&zoom=12&a...
Why does Math.round(0.49999999999999994) return 1?
...ts, you should expect the results to differ a bit on various environments (CPU, 32- or 64-bit mode).
And, when using round or inverting matrices, etc., these bits can make a huge difference.
x64 output:
10.5 rounded is 11
10.499999999999998 rounded is 10
9.5 rounded is 10
9.499999999999998 rounde...
Are GUID collisions possible?
...depend on how the GUID is generated, and some implementations based on the CPU time or milliseconds will (hopefully) exagerate whatever calculation its based off of so two GUID's generated from milliseconds apart will have a vast difference.
– Dalin Seivewright
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How can I propagate exceptions between threads?
...d). Within the body of the function we spawn multiple worker threads to do CPU intensive work, wait for all threads to finish, then return the result on the main thread.
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How to send an object from one Android Activity to another using Intents?
...ne process you're mucking about in. reasons why it's not good: memory use, cpu use, battery use. the last one especially made the design choices with intents quite perplexing in hindsight. there are people who insist that they're a good idea, usually because "google said so".
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setImmediate vs. nextTick
...n completes.
So in a case where you're trying to break up a long running, CPU-bound job using recursion, you would now want to use setImmediate rather than process.nextTick to queue the next iteration as otherwise any I/O event callbacks wouldn't get the chance to run between iterations.
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Are tuples more efficient than lists in Python?
...bsolutely does not mean the same operations happen at the C (and therefore cpu) level. Try creating a class ListLike with a __getitem__ that does something horribly slow, then disassemble x = ListLike((1, 2, 3, 4, 5)); y = x[2]. The bytecode will be more like the tuple example above than the list ex...
How can I measure the speed of code written in PHP? [closed]
...e function that is slowing everything down ^^
Note that Xdebug counts the CPU time spent by PHP ; when PHP is waiting for an answer from a Database (for instance), it is not working ; only waiting. So Xdebug will think the DB request doesn't take much time !
This should be profiled on the SQL serve...
When do I really need to use atomic instead of bool? [duplicate]
...will work in a similar way for bool and atomic<bool>. But multi-core CPU and missed memory barrier is something that will happen with nearly 100% chance for any modern application and hardware
– Ezh
Sep 2 '18 at 9:53
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