Concatenating byte string literals?

internals
1

In definition of a macro, I need a way to append a b"\0" to the end of the (byte)string literal parameter, to get a static byte slice as the result.

bytes! looks on paper like it could do the job, but: 1) it’s deprecated; 2) it does not even accept bytestring literals as parameters. concat! deals with UTF-8 strings. What else is there to do?

1 Like
2

Filed a proposal to resurrect bytes! as an RFC draft.

3

Is there some specific reason Rust doesn’t automatically coalesce adjacent string literals like C does (and also Python)?

4

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