https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79084
Bug ID: 79084
Summary: No warning for implicit double with complex specifier
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: diagnostic
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: redi at gcc dot gnu.org
Target Milestone: ---
#include <complex.h>
complex c;
This doesn't issue the expected pedwarn when compiled with -Wpedantic, because
the "complex" macro is defined in a system header.
With -Wsystem-headers you do get a warning:
In file included from c.c:1:0:
c.c:2:1: warning: ISO C does not support plain ‘complex’ meaning ‘double
complex’ [-Wpedantic]
complex c;
^
As the location (c.c:2:1) is not in a system header the warning should not be
suppressed. When user code misuses a macro defined in a system header that is
not system code, and should not be suppressed.
