Somehow I overlooked this extension back when implementing multidraw, or
maybe it was intentional because ANGLE supported multidraw but not this
extension.
Which makes libc++ since version 16 not use transitive includes for
backwards compatibility, both for faster build times and to detect if
some code is missing a transitive include (which could blow up for the
user even w/o this macro defined, as compiling with -std=c++23 also
removes quite a lot such includes).
This affects Android, macOS/iOS and Emscripten. On the CI right now all
VMs use older libc++, which means it does nothing, but it's done there
anyway to future-proof. Locally on Arch it affects the Android and
Emscripten builds already, as well as an explicit clang + libc++ build.
The macro, which is enabled when preprocessing the headers for
single-header libs, excluded the TypeForSize specializations, making
these two not work with Math::gather() and Math::scatter(). It's done
correctly in Vector2 and Color, not sure why not here.
Causes the following warning on GCC on a static build if user code isn't
compiled with -fvisibility=hidden:
warning: ‘Magnum::GL::Mesh’ declared with greater visibility than
the type of its field ‘Magnum::GL::Mesh::_attributes’ [-Wattributes]
According to quick testing, given that the struct definition isn't
public, presence of the MAGNUM_GL_LOCAL has no effect on the symbol
being exported. On the contrary, inner classes that are meant to be
exported (such as the ones in GL::Framebuffer) have to contain
MAGNUM_GL_EXPORT, otherwise it leads to linker errors. Furthermore, all
other inner structs with local definitions holding PIMPL state and such
don't have a MAGNUM_*_LOCAL macro applied anywhere
Thus the macro was likely redundant, and is removed.
I don't think my ancient Doxygen fork is aware of [[nodiscard]], and
it's quite clear that the return value is important when looking at the
docs, so just remove it from processing.
I thought I went over all these several years ago already, but
apparently not or maybe back then not all websites were HTTPS-ready. Now
they mostly are, except for maybe one or two.
I need this to sample a color map for debug visualization in the UI
library. Thus so far it's just 1D, and with 8-bit input. Other variants
might get added in the future if needed.