[Insight-developers] Convenience functions for Index, Offset, Point, Vector, etc.

[Luis Ibanez]

It sounds like a good idea,

I agree in that filling the indices is
cumbersome and distracting.

It is nice that what you propose is not
invasive in the class.


Luis


------------------

Brad King wrote:
> Jim,
> 
> 
>>MakeIndex is not terribly efficient since it must construct the Index,
>>set the components, and return the index but it does make the notation
>>"shorter".
> 
> 
> This should be pretty fast:
> 
> inline Index<2> MakeIndex(Index<2>::IndexValueType i0,
>                           Index<2>::IndexValueType i1)
> {
>   Index<2> i = {{i0,i1}};
>   return i;
> }
> 
> Most modern compilers have a "Named Return Value Optimization" (NVRO) that
> will optimize the entire call away.  The optimization was introduced to
> help reduce the penalty of the common postfix-increment operator problem:
> 
> foo foo::operator++(int) { foo tmp(*this); ++*this; return tmp; }
> 
> -Brad
> 
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