Function that calculates in compile time when it can
Minas Mina
minas_mina1990 at hotmail.co.uk
Mon Aug 6 05:21:37 PDT 2012
I want to write a fibonacci(n) function that calculates the
result.
a) if n is known at compile time, use a template
b) if not, use a normal function
I know how to write a template version:
template fib(ulong n)
{
static if( n < 2 )
const fib = n;
else
const fib = fib!(n-1) + fib!(n-2);
}
But how can I 'know' if n is known at compile time to make it use
the other version? (which I won't post 'cause it is fairly easy).
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