https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89410
--- Comment #21 from Jonny Grant <jg at jguk dot org> ---
Hi! In comment 9 I raised if #line 0 could be prevented please
#line next_line_num
So a line can only be >=1 as I understand it.
Editors show files from line 1. There's no line 0
Godbolt can't show the error.. as it prevents showing line 0 that doesn't exist
(files count from 1), and gcc shows the wrong code line highlighted.
#line 0
#error 3
#error hello
#1 with x86-64 gcc (trunk)
<source>: error: #error 3
<source>:1:2: error: #error hello
1 | #line 0
| ^~~~~
Compiler returned: 1
