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Is std::vector copying the objects with a push_back?
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I would also note that, if you use raw pointers, you are now responsible for cleaning up after them. There's no good reason to do this (not one I can think of anyway), you should always use a smart pointer.
– Ed S.
Nov 2...
Advantage of switch over if-else statement
...l throw an exception on out-of-bounds values. (bitset::operator[] doesn't range-check). cplusplus.com/reference/bitset/bitset/test. This will probably outperform a compiler-generated jump table implementing switch, esp. in the not-special case where this will be a single not-taken branch.
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Differences between unique_ptr and shared_ptr [duplicate]
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@AaronMcDaid By default unique_ptr will behave like a raw pointer that you can't forget to delete: if you forget to make the dtor virtual, it's on you.
– curiousguy
Jun 30 '18 at 18:00
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How do I create a datetime in Python from milliseconds?
...ion: "fromtimestamp() may raise ValueError, if the timestamp is out of the range of values supported by the platform C localtime() or gmtime() functions. It’s common for this to be restricted to years in 1970 through 2038." - how long is your code expected to last???
– mike ...
WebApi's {“message”:“an error has occurred”} on IIS7, not in IIS Express
... reach this post, and try/catch didn't work in my case so I had to see the raw result
– Ekus
Apr 30 '19 at 20:18
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Which MySQL data type to use for storing boolean values
... bit-field
values. A type of BIT(M) enables storage of M-bit values. M can range
from 1 to 64.
Otherwise, according to the MySQL manual you can use BOOL or BOOLEAN, which are at the moment aliases of tinyint(1):
Bool, Boolean: These types are synonyms for TINYINT(1). A value of
zero is considered ...
Set a default font for whole iOS app?
...turn self.font.fontName }
set {
if self.font.fontName.range(of:"Medium") == nil {
self.font = UIFont(name: newValue, size: self.font.pointSize)
}
}
}
@objc var substituteFontNameBold : String {
get { return self.font.fontName...
Print a string as hex bytes?
....hexlify(b"Hello world !!") to get hex string. b":".join(h[i:i+2] for i in range(0, len(h), 2)) to insert ':' after every two hex digits in it.
– jfs
Mar 12 '14 at 1:17
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Google Sheets API Setup · App Inventor 2 中文网
...json
file you got from the Service Account setup steps.
Unable to parse range: ______
If you get this error message, there may be an error with the range that you
provided. This could mean that the sheetName you’ve provided does not actually
exist, or that the reference you provided is not va...
What's the difference between lists and tuples?
...and tuple
Literal
someTuple = (1,2)
someList = [1,2]
Size
a = tuple(range(1000))
b = list(range(1000))
a.__sizeof__() # 8024
b.__sizeof__() # 9088
Due to the smaller size of a tuple operation, it becomes a bit faster, but not that much to mention about until you have a huge number of eleme...