On Wednesday, 8 July 2015 at 03:31:43 UTC, jmh530 wrote:
I'm still not sure why I'm getting the error I mention in the
original post. For instance, the code below is giving that
Error 42 Symbol Undefined error. Seems very mystifying...
import std.math : cos;
real foo(T)(T fp, real x)
{
return fp(x);
}
void main()
{
real x = 0;
real y = foo(&cos, x);
}
It seems std.math.cos is an intrinsic function (i.e. one that the
compiler implements when needed, or generates the appropriate asm
for):
https://github.com/D-Programming-Language/phobos/blob/master/std/math.d#L630
The compiler should probably refuse to take the address of such a
function. I've found this bug report:
https://issues.dlang.org/show_bug.cgi?id=4541
