A couple headers expected names to be in the global namespace, qualify
those names to make sure they're resolved even when the names are not
exported.
One header placed its functions in the global namespace, move those to
the AK namespace to make the concepts resolve.
This patch adds support for 128-bit floating points in FloatExtractor.
This is required to build SerenityOS on MacOS/aarch64. It might break
building for Raspberry Pi.
Doesn't use them in libc headers so that those don't have to pull in
AK/Platform.h.
AK_COMPILER_GCC is set _only_ for gcc, not for clang too. (__GNUC__ is
defined in clang builds as well.) Using AK_COMPILER_GCC simplifies
things some.
AK_COMPILER_CLANG isn't as much of a win, other than that it's
consistent with AK_COMPILER_GCC.
The commit that introduced BuiltinWrappers (548529a) accidentally used
`val` instead of `value` in the non `__GNUC__` and `__clang__` versions
of the functions.
In order to reduce our reliance on __builtin_{ffs, clz, ctz, popcount},
this commit removes all calls to these functions and replaces them with
the equivalent functions in AK/BuiltinWrappers.h.
The goal of this file is to enable C++ overloaded functions for
standard builtin functions that we use. It contains fallback
implementations for systems that do not have the builtins available.
