Understanding Safety of Function Pointers vs. Addresses of Functions
digitalmars-d-learn at puremagic.com
Thu Jul 9 01:44:49 PDT 2015
On Wednesday, 8 July 2015 at 21:04:27 UTC, jmh530 wrote:
> On Wednesday, 8 July 2015 at 18:31:00 UTC, Steven Schveighoffer
>> You can use a function lambda:
>> auto fp = (real a) => cos(a);
>> Note, I had to put (real a) even though I would have expected
>> "a => cos(a)" to work.
> Interesting. You have to put real because there is also a float
> and double version of cos.
Even if there are no overloads, you'd still need to specify the
type. That's because `a => cos(a)` is not a function, but a
function template, and therefore can't be store in a variable.
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