one step towards unification of std.algorithm and std.string

[grauzone]

Andrei Alexandrescu wrote:
> bearophile wrote:
>> I don't know C++ much, and I have to confess that I have to fully 
>> understand the const business still. I hope your book will teach me 
>> this topic very well :-)
> 
> One thing about const that is slowly downing on this community is that 
> it will _not_ be used as often as in C++. It will be rare, and the 
> compiler and standard library should not require it without very good 
> reason. I think opEquals for classes is at fault for requiring const.

Interesting statement. Does this apply to immutable as well, or only 
const? Because I thought const/immutable was supposed to make program 
logic clearer etc... That implied it would be heavily used in "normal" 
code. That's all a bit vague to me, care to clarify this a bit?

> 
> Andrei