This patch adds the `IN6_IS_ADDR_MC*` macro, which checks whether an
address is multicast node-local address, multicast link-local address,
multicast site-local address, multicast organization-local address and
multicast global address.
Relates to https://github.com/llvm/llvm-project/issues/119281
Note:
1) As this PR enables `-Werror` for `libc` tests, it's very likely some
downstream CI's may fail / start failing, so it's very likely this PR
may need to be reverted and re-applied.
P.S.
I do not have merge permissions, so I will need one of the reviews to
merge it for me. Thank you!
This adds a test that consists of compiling `#include <...>`,
pretty much alone, for each public header file in each different
language mode (`-std=...` compiler switch) with -Werror and many
warnings enabled.
There are several headers that have bugs when used alone, and
many more headers that have bugs in certain language modes. So
for now, compiling the new tests is gated on the cmake switch
-DLLVM_LIBC_BUILD_HEADER_TESTS=ON. When all the bugs are fixed,
the switch will be removed so future regressions don't land.
These are failing to link for some buildbots. It's not immediately clear
why,
disable these and add a todo to investigate.
Link: #111403
Link: #114566
Link: #114618
This avoids -Wmacro-redefinition diagnostics observed when building the
libc_include_tests ninja target.
For example, the signbit_test will attempt to include BOTH our math-macros.h
(via math-function-macros.h), and the system's math.h (via hdr/math_macros.h).
While it's nice that we can get some coverage of the headers we will provide to
end users of fullbuilds in CI of overlay builds, it's not worth chasing each
individual conflict and disabling some include tests as conflicts arise.
Disable the include tests unless `-DLLVM_LIBC_FULL_BUILD=ON` is specified.
Refer: 7.3.1 from [ISO
SPEC](https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3220.pdf)
I have added complex variants of F16 and F128 in libc doc but have
omitted support for them since we will have to first investigate how
their support matrix for clang and gcc looks like, and then add header
guards for them accordingly. Planning to add them in follow up PRs once
this gets landed.
This PR resolves#96322 and implements the `signbit` macro under a new
header `generic-math-macros.h`. This also removed the `TODO` in
`math-macros.h` and moves `isfinite`, `isinf`, and `isnan` to the same
generic maths header. Finally, a test file
`generic-math-macros_test.cpp` that adds coverage to the above 4 macros.
Fixes#96322.
Currently there is no tests for generic macros of generated `stdbit.h`
header in C, and it is easy to make typo mistakes as in
https://github.com/llvm/llvm-project/issues/84658. In this patch, we
add a simple test for them in C.
Either:
- I forgot my alphabet (that E comes before F).
- My juvenile inner brain finds unsigned literal constants with the sequence FU
funny.
¿Por qué no los dos?
Summary:
Recent changes added an include path in the float128 type that used the
internal `libc` path to find the macro. This doesn't work once it's
installed because we need to search from the root of the install dir.
This patch adds "include/" to the include path so that our inclusion
of installed headers always match the internal use.
