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f49bb1505b
possible
(https://github.com/ruby/fiddle/pull/120)
WG14 N2350 made very clear that it is an UB having type definitions
within "offsetof" [1]. This patch enhances the implementation of macro
ALIGN_OF to use builtin "_Alignof" to avoid undefined behavior when
using std=c11 or newer
clang 16+ has started to flag this [2]
Fixes build when using -std >= gnu11 and using clang16+
Older compilers gcc < 4.9 or clang < 8 has buggy _Alignof even though it
may support C11, exclude those compiler versions
[1] https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2350.htm
[2] https://reviews.llvm.org/D133574
Signed-off-by: Khem Raj <raj.khem@gmail.com>
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| .. | ||
| lib | ||
| win32 | ||
| closure.c | ||
| closure.h | ||
| conversions.c | ||
| conversions.h | ||
| depend | ||
| extconf.rb | ||
| fiddle.c | ||
| fiddle.gemspec | ||
| fiddle.h | ||
| function.c | ||
| function.h | ||
| handle.c | ||
| memory_view.c | ||
| pinned.c | ||
| pointer.c | ||