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Get Unix Epoch Time in Swift
...ds but sometimes one scale (one digit to the right of the decimal) less or more. When it returns a scale of 5 (5 digits after the decimal), I don't know if Swift is dropping the trailing 0 or it couldn't produce 6 scales of precision. But when it returns a scale of 7, that extra digit can be truncat...
Convert Decimal to Double
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A more generic answer for the generic question "Decimal vs Double?":
Decimal is for monetary calculations to preserve the precision. Double is for scientific calculations that do not get affected by small differences. Since Dou...
Linux how to copy but not overwrite? [closed]
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What is the lifetime of a static variable in a C++ function?
...ion order of locals with static or thread storage duration is considerably more complicated than pure LIFO, see section 3.6.3 [basic.start.term]
– Ben Voigt
Jun 16 '15 at 14:10
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How to implement WiX installer upgrade?
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SQL Server - copy stored procedures from one db to another
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Android and setting width and height programmatically in dp units
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Why is processing a sorted array slower than an unsorted array?
...rted behaving the way I predicted: the sorted version was a little faster. Moreover, the unsorted version became twice as fast! So the numbers with struct are 2s unsorted vs. 1.9s sorted.
– dasblinkenlight
Dec 24 '12 at 21:31
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What's a concise way to check that environment variables are set in a Unix shell script?
...he Bourne Shell (1978 or thereabouts). The ${var:?} construct is slightly more recent: I think it was in System III UNIX circa 1981, but it may have been in PWB UNIX before that. It is therefore in the Korn Shell, and in the POSIX shells, including specifically Bash.
It is usually documented in th...
How can I add new keys to a dictionary?
...nt to create a dictionary just to update one key. Do this only if you have more than 1 key (there may be a threshold above which it's better to create a dict)
– Jean-François Fabre♦
Aug 1 '18 at 21:42
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