https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80036
Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |manu at gcc dot gnu.org
Depends on| |43486
--- Comment #2 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
Variable-uses don't have locations in GCC (yet, hopefully some day when the FEs
get replaced by Clang), so the warning points to "print_it", which is inside
the macro. Then, warn_uninit does:
location = linemap_resolve_location (line_table, location,
LRK_SPELLING_LOCATION, NULL);
which means that the location points at the spelling location, that is, inside
the macro.
This has nothing to do with headers. A simpler testcase is:
void bar(int);
#define foo(x) bar(x)
void test(void)
{
int uninit;
foo(uninit);
}
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43486
[Bug 43486] Preserve variable-use locations
