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How to check if a number is a power of 2
...is all plays out:
The function returns boolean (true / false) and accepts one incoming parameter of type unsigned long (x, in this case). Let us for the sake of simplicity assume that someone has passed the value 4 and called the function like so:
bool b = IsPowerOfTwo(4)
Now we replace each oc...
Callback functions in C++
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Note: Most of the answers cover function pointers which is one possibility to achieve "callback" logic in C++, but as of today not the most favourable one I think.
What are callbacks(?) and why to use them(!)
A callback is a callable (see further down) accepted by a class or functi...
List all the modules that are part of a python package?
...dule_loader, name, ispkg). What can I do to make it work like the previous one ?
– crax
Apr 12 '17 at 12:01
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Throw keyword in function's signature
...OTW puts it quite nicely why exception specifications are not as useful as one might hope:
int Gunc() throw(); // will throw nothing (?)
int Hunc() throw(A,B); // can only throw A or B (?)
Are the comments correct? Not quite. Gunc() may indeed throw something, and Hunc() may well throw some...
OR is not supported with CASE Statement in SQL Server
...wever, (22978, 23218, 23219) is an array and IN is necessary to match only one of the values.
– LdTrigger
Nov 24 '16 at 14:49
2
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When to use @QueryParam vs @PathParam
...ameter it is can be used as a path param and generates 2 separate pages -- one with the email on it, one without it -- but logically that's not the case: it is still the same page with or without certain attributes shown.
Hope this helps -- I appreciate the explanation might be a bit fuzzy :)
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Fast permutation -> number -> permutation mapping algorithms
... the fourth position, which would be index 3, but it's the third remaining one, so we assign it 2.
c ends up at the first remaining position, which is always 0.
d ends up at the last remaining position, which (out of only two remaining positions) is 1.
e ends up at the only remaining position, inde...
.gitignore and “The following untracked working tree files would be overwritten by checkout”
...hat doesn't have those JPG files tracked and the user is trying to move to one that does. So doing git rm --cached will not make a difference, those files don't exist in the current branch. For this error I think the user instead needs to follow @Greg Hewgill's answer - "move them out of working cop...
Set time to 00:00:00
... help me in constructing a LocalDate with hours, minute and second? I know one option is to follow DateTime.
– Woody
Jul 23 '15 at 10:05
11
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How can I get stock quotes using Google Finance API?
...developer API for this.
Getting stock quotes is a little harder. I found one article where someone got stock quotes using Google Spreadsheets.
You can also use the gadgets but I guess that's not what you're after.
The API you mention is interesting but doesn't seem to be documented (as far as I'...