On Saturday, 25 July 2015 at 00:49:38 UTC, Walter Bright wrote:
On 7/24/2015 2:27 PM, Tofu Ninja wrote:
No it isn't. Google QueryInterface(). Nobody lists all the interfaces at the top level functions, which is that Rust traits and C++ concepts require.

The only time you don't use the right interface for your needs is if you plan on casting somewhere down the line. But certainly there are people who don't do that, I for one feel it's bad practice to need to use casts to circumvent the type system like that.

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