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rustc reports error when argument is not used in the "fmt" string. #27

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chirsz-ever opened this issue Apr 11, 2021 · 0 comments

chirsz-ever commented Apr 11, 2021

For example:

#[logfn(DEBUG, fmt="first argument: {:?}")
fn drink(n: i32, m: i32) {}

This will raise an rustc error "argument never used".

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