https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90476
Bug ID: 90476
Summary: prepossessor should error if #line 0
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: jg at jguk dot org
Target Milestone: ---
gcc should reject #line 0
As I understand
#line <next line>
So it could actually only ever be 1 or above. As files start at line 1, not 0.
Although line 0 is invalid, gcc accepts and sets this.
$ gcc -o line5 line5.c
line5.c:0:1: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ at end of
input
$ cat line5.c
#line 0
mytypo
$
