ldc executable crashes with this code

Steven Schveighoffer schveiguy at gmail.com
Thu Feb 3 13:13:52 UTC 2022

On 2/3/22 12:53 AM, forkit wrote:

> But @safe or not, nothing good can come from casting an immutable string 
> to a mutable string, and the compiler really should know that ;-)

If you have a function that accepts mutable data, but you know for that 
call it won't mutate the data (or maybe it's a C function that never 
mutates the data, but isn't attributed with const/immutable), then it is 
not UB.

It's only UB to cast away immutable/const *and* mutate it.

Reference: https://dlang.org/spec/const3.html#removing_with_cast


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