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b8ac6e146a
Note that it's not reported with gcc. It's only reported with g++.
C++ code to reproduce this warning:
#include <glib-object.h>
G_BEGIN_DECLS
#define GARROW_TYPE_FILE (garrow_file_get_type())
G_DECLARE_INTERFACE(GArrowFile,
garrow_file,
GARROW,
FILE,
GObject)
struct _GArrowFileInterface {
GTypeInterface g_iface;
};
G_DEFINE_INTERFACE(GArrowFile,
garrow_file,
G_TYPE_OBJECT)
static void
garrow_file_default_init(GArrowFileInterface *iface)
{
}
G_END_DECLS
Build command line:
% g++ -Wall -shared -o liba.so a.cpp $(pkg-config --cflags --libs gobject-2.0)
Message:
In file included from /tmp/local.glib/include/glib-2.0/gobject/gobject.h:24,
from /tmp/local.glib/include/glib-2.0/gobject/gbinding.h:29,
from /tmp/local.glib/include/glib-2.0/glib-object.h:23,
from a.cpp:1:
a.cpp: In function 'GType garrow_file_get_type()':
/tmp/local.glib/include/glib-2.0/gobject/gtype.h:219:50: warning: '<<' in boolean context, did you mean '<' ? [-Wint-in-bool-context]
#define G_TYPE_MAKE_FUNDAMENTAL(x) ((GType) ((x) << G_TYPE_FUNDAMENTAL_SHIFT))
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/tmp/local.glib/include/glib-2.0/gobject/gtype.h:2026:11: note: in definition of macro '_G_DEFINE_INTERFACE_EXTENDED_BEGIN'
if (TYPE_PREREQ) \
^~~~~~~~~~~
/tmp/local.glib/include/glib-2.0/gobject/gtype.h:1758:47: note: in expansion of macro 'G_DEFINE_INTERFACE_WITH_CODE'
#define G_DEFINE_INTERFACE(TN, t_n, T_P) G_DEFINE_INTERFACE_WITH_CODE(TN, t_n, T_P, ;)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cpp:16:1: note: in expansion of macro 'G_DEFINE_INTERFACE'
G_DEFINE_INTERFACE(GArrowFile,
^~~~~~~~~~~~~~~~~~
/tmp/local.glib/include/glib-2.0/gobject/gtype.h:178:25: note: in expansion of macro 'G_TYPE_MAKE_FUNDAMENTAL'
#define G_TYPE_OBJECT G_TYPE_MAKE_FUNDAMENTAL (20)
^~~~~~~~~~~~~~~~~~~~~~~
a.cpp:18:20: note: in expansion of macro 'G_TYPE_OBJECT'
G_TYPE_OBJECT)
^~~~~~~~~~~~~
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| .. | ||
| tests | ||
| .gitignore | ||
| gatomicarray.c | ||
| gatomicarray.h | ||
| gbinding.c | ||
| gbinding.h | ||
| gboxed.c | ||
| gboxed.h | ||
| gclosure.c | ||
| gclosure.h | ||
| genums.c | ||
| genums.h | ||
| glib-genmarshal.in | ||
| glib-mkenums.in | ||
| glib-types.h | ||
| gmarshal.c | ||
| gmarshal.h | ||
| gobject_gdb.py | ||
| gobject_probes.d | ||
| gobject_trace.h | ||
| gobject-autocleanups.h | ||
| gobject-query.c | ||
| gobject.c | ||
| gobject.h | ||
| gobject.rc.in | ||
| gobject.stp.in | ||
| gobjectnotifyqueue.c | ||
| gparam.c | ||
| gparam.h | ||
| gparamspecs.c | ||
| gparamspecs.h | ||
| gsignal.c | ||
| gsignal.h | ||
| gsourceclosure.c | ||
| gsourceclosure.h | ||
| gtype-private.h | ||
| gtype.c | ||
| gtype.h | ||
| gtypemodule.c | ||
| gtypemodule.h | ||
| gtypeplugin.c | ||
| gtypeplugin.h | ||
| gvalue.c | ||
| gvalue.h | ||
| gvaluearray.c | ||
| gvaluearray.h | ||
| gvaluecollector.h | ||
| gvaluetransform.c | ||
| gvaluetypes.c | ||
| gvaluetypes.h | ||
| libgobject-gdb.py.in | ||
| Makefile.am | ||
| meson.build | ||