Commits on Jan 17, 2023

1. BUG: use _Alignof rather than offsetof() on most compilers (numpy… …

   …#23016)
   
   WG14 N2350 made very clear that it is an UB having type definitions
   within "offsetof" [1]. This patch enhances the implementation of macro
   _ALIGN to use builtin "_Alignof" to avoid undefined behavior on
   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 compilers too
   
   [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>
   
   * Apply suggestions from code review
   
   Signed-off-by: Khem Raj <raj.khem@gmail.com>
   Co-authored-by: Sebastian Berg <sebastian@sipsolutions.net>

   

   2 people authored and charris committed Jan 17, 2023
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