The constant core::num::ASCII_CASE_MASK is wrongly described in the doc comment.

[papok]

rust/library/core/src/num/mod.rs

Lines 416 to 419 in a266f11

	/// If 6th bit set ascii is upper case.
	const ASCII_CASE_MASK: u8 = 0b0010_0000;

Shouldn't the comment line read : /// If 6th bit set ascii is lower case. ?

[jyn514]

Why?

[papok]

Without further explanation I understand "set" for a bit to be set to 1. In ASCII, if the 6th bit is set to 1 then the letter coded (if the character coded is a letter) is lowercase.