The expression println!(format!("test")) produces the following error:
<anon>:18:18: 18:24 error: macro undefined: 'format'
<anon>:18 println!(format!("test"))
^~~~~~
<anon>:18:18: 18:33 error: format argument must be a string literal.
<anon>:18 println!(format!("test"))
^~~~~~~~~~~~~~~
error: aborting due to 2 previous errors
The macro undefined: 'format' error is pretty misleading, implying that the user mispelled format! or that it has a different name, but in reality it's just complaining because you're supposed to pass a literal to println!. Why does this error get generated and is there a way to make it clearer?
The expression
println!(format!("test"))produces the following error:The
macro undefined: 'format'error is pretty misleading, implying that the user mispelledformat!or that it has a different name, but in reality it's just complaining because you're supposed to pass a literal toprintln!. Why does this error get generated and is there a way to make it clearer?