gcc/testsuite/gcc.dg/floatn-align.h

   1 /* Tests for _FloatN / _FloatNx types: test max_align_t alignment.
   2    Before including this file, define WIDTH as the value N; define EXT
   3    to 1 for _FloatNx and 0 for _FloatN.  */
   4
   5 #define CONCATX(X, Y) X ## Y
   6 #define CONCAT(X, Y) CONCATX (X, Y)
   7 #define CONCAT3(X, Y, Z) CONCAT (CONCAT (X, Y), Z)
   8
   9 #if EXT
  10 # define TYPE CONCAT3 (_Float, WIDTH, x)
  11 #else
  12 # define TYPE CONCAT (_Float, WIDTH)
  13 #endif
  14
  15 #include <stddef.h>
  16
  17 _Static_assert (_Alignof (max_align_t) >= _Alignof (TYPE),
  18                 "max_align_t must be at least as aligned as _Float* types");