This copies the test code inline into the Markdown, which means it could
diverge from the test code which is compiled and run as part of the
tests. That needs improving, but that can happen in a subsequent commit.
Helps: #3037
As we start moving documentation over from gtk-doc to gi-docgen, the
gtk-doc coverage is going to go down and things are going to start
breaking. That’s OK; we don’t need to test it any more.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #3037
The files here are copied from the docs-gtk-org
branch of gtk.
This adds gi-docgen to the CI Dockerfiles and ensures the new versions
(including the OS upgrades from the previous commit) are used during CI.
Helps: #3037
That means Debian Bookworm and Fedora 37.
Also rework the mingw Dockerfile to be based on the Fedora one, so that
the underlying layers can be shared. This should reduce the disk
consumption of the registry a little.
`.gitlab-ci.yml` has not been updated to use the new images in this
commit, as the images will be modified further in the following commit.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
The C standard does not specify whether the underlying type of an enum
is signed or unsigned, and until C23 there was no way to control this
explicitly. GCC appears to make enums unsigned unless there is a
negative value among cases of the enum, in which case it becomes signed.
MSCV appears to make enums signed by default.
A bitfield of an enum type (which is not specificied in the C standard
either) behaves as if it was an instance of a numeric type with a
reduced value range. Specifically, a 'signed int val : 2;' bitfield will
have the possible values of -2, -1, 0, and 1, with the usual wraparound
behavior for the values that don't fit (although this too is
implementation-defined).
This causes the following issue, if we have:
typedef enum
{
G_ZERO,
G_ONE,
G_TWO
} GFoo;
struct _GBar
{
GFoo foo : 2;
};
and then assign bar.foo = G_TWO and read it back, it will have the
expected value of 2 (aka G_TWO) on GCC, but a value of -2 (not matching
any of the enum variants) on MSVC.
There does not seem to be any way to influence signedness of an enum
prior to C23, nor is there a 'unsigned GFoo foo : 2;' syntax. The only
remaining options seems to be never using enums in bitfields, which is
what this change implements.
This corresponds to https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/6467
in GTK.
Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
This triggered a warning from the CHERI compiler since the struct contains
a `void *` but `__attribute__((aligned(8))` reduced alignment to less than
the `void *` alignment (which is 16 for Arm Morello).
Helps: https://gitlab.gnome.org/GNOME/glib/-/issues/2842
If no error with -Werror=sign-conversion, the resulting object file
does not differ from compilation without -Werror=sign-conversion.
So the -Werror argument is now applied directly to string.c and testing.c.
Finally, the currently specific -Werror targets string-macro and
testing-macro are removed.
