1 error: `<` is interpreted as a start of generic arguments for `u32`, not a comparison
2 --> $DIR/issue-42954.rs:7:19
5 | ^ - interpreted as generic arguments
7 | not interpreted as comparison
9 LL | is_plainly_printable!(c);
10 | ------------------------ in this macro invocation
12 = note: this error originates in the macro `is_plainly_printable` (in Nightly builds, run with -Z macro-backtrace for more info)
13 help: try comparing the cast value
18 error: aborting due to previous error