Is [] mandatory for array operations?

[Michel Fortin]

On 2010-05-06 22:46:42 -0400, Michel Fortin <michel.fortin at michelf.com> said:

> That said, I'd expect the compiler to call sin(y) only once, so it'd be 
> more like that:
> 
> 	auto sinY = sin(y);
> 	for(int i = 0; i < x.length; i++) {
> 		x[i] = sinY[i];
> 	}

And I'd expect that because in the expression "x[] = sin(y)[]" none of 
sin's argument are part of an array operation. Calling a function 
repeatedly should only happen when one of its arguments can change 
between iterations (and possibly only pure functions should be allowed 
to be called repeatedly through array ops).

-- 
Michel Fortin
michel.fortin at michelf.com
http://michelf.com/