Re: [boost] Problem with Addable in operators.hpp

From: John E. Potter (jpotter_at_[hidden])
Date: 2001-02-08 17:11:13

On Thu, 8 Feb 2001, Aidan Kenny wrote:

> Any class implementing operator+ should return a const value. This will
> cause a compile error if we try to do something stupid like,
> 
> object_x + object_y = object_z;

[...]

> Hope I'm right here,

You're right, it is a well known safe idiom recommended in many famous
books.

You're wrong, see std::complex.

It's an old debate.

John