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Rounding float in Ruby
...; 1.235 as most would expect (iow, after the 2nd decimal, sprintf rounds 5 down and only rounds a 6 up). That's why Kit Ho's comment above has 25+ upvotes. Safer to use, '%.3f' % 1.2345.round(3) so the number is properly rounded by .round first, then formatted (with trailing zeros, if need be).
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How to sum up an array of integers in C#
... (nobody tell Fil that he just pushed the iteration a couple levels down the stack)
– user1228
Mar 10 '10 at 18:24
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How can I propagate exceptions between threads?
...AnthonyWilliams' answer; it's just been implemented for you already.)
The down side is that there's no standard way to "stop caring about" a std::future; even its destructor will simply block until the task is done. [EDIT, 2017: The blocking-destructor behavior is a misfeature only of the pseudo-fu...
What does threadsafe mean?
... correctly under mutli-threaded and concurrent use, but this is often more down to luck and coincidence, than careful design. Even if some module does not break for you under, it may break when moved to other environments.
Multi-threading bugs are often hard to debug. Some of them only happen occas...
How to write log base(2) in c/c++
..., 24, 7, 19, 27, 23, 6, 26, 5, 4, 31
};
v |= v >> 1; // first round down to one less than a power of 2
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
v |= v >> 16;
r = MultiplyDeBruijnBitPosition[(uint32_t)(v * 0x07C4ACDDU) >> 27];
In addition you should take a look ...
How do HttpOnly cookies work with AJAX requests?
...cks which rely on modifying the client's cookies (not uncommon).
It boils down to the fact that a) no single improvement will solve all vulnerabilities and b) no system will ever be completely secure. HTTP-Only is a useful tool in shoring up against XSS.
Similarly, even though the cross domain re...
How to encode the filename parameter of Content-Disposition header in HTTP?
Web applications that want to force a resource to be downloaded rather than directly rendered in a Web browser issue a Content-Disposition header in the HTTP response of the form:
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Release generating .pdb files, why?
...ou won't be able to see a stack trace. That makes it very difficult to pin down exactly which line of code caused the exception to be thrown.
– Cody Gray♦
Mar 29 '11 at 3:10
2
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C++: How to round a double to an int? [duplicate]
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I wouldn't use the phrase "round down", because that could be interpreted as rounding -0.5 to -1.
– user1084944
Mar 14 '12 at 3:16
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Do you leave parentheses in or out in Ruby? [closed]
...ke t.column or has_many in rails. The rest of the time, it generally comes down to clarity, and it's probably an even split.
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