https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69122
Bug ID: 69122
Summary: -Wmisleading-indentation false positive with empty
macros
Product: gcc
Version: 5.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: thiago at kde dot org
Target Milestone: ---
When a statement is preceded by an empty macro, the warning triggers
incorrectly:
$ cat /tmp/test.c
#define emit
void g();
void f(int x)
{
if (x)
g();
emit g();
}
$ ~/gcc6/bin/gcc -c -O3 -Wall /tmp/test.c
/tmp/test.c: In function ‘f’:
/tmp/test.c:7:10: warning: statement is indented as if it were guarded by...
[-Wmisleading-indentation]
emit g();
^
/tmp/test.c:5:5: note: ...this ‘if’ clause, but it is not
if (x)
^~
$ ~/gcc6/bin/gcc -E /tmp/test.c | ~/gcc6/bin/gcc -c -O3 -Wall -xc -
[no error]
This also happens in C++ and happens often in Qt code due to the empty "emit"
macro.
