Re: Replacing C's memcpy with a D implementation

[Walter Bright via Digitalmars-d]

On 6/10/2018 7:49 PM, Mike Franklin wrote:

On Sunday, 10 June 2018 at 15:12:27 UTC, Kagamin wrote:

If the compiler can't get it right then who can?

The compiler implementation is faulty.  It rewrites the expressions to an `extern(C)` runtime implementation that is not @safe, nothrow, or pure: https://github.com/dlang/druntime/blob/706081f3cb23f4c597cc487ce16ad3d2ed021053/src/rt/lifetime.d#L1442 The backend is not involved.

It's only faulty if there's a bug in it. It's essentially @trusted code.