1  #ifndef MACROS_H
       2  
       3  #define check_size(_t, _size) assert(sizeof(_t) == (_size))
       4  
       5  #define check_align(_t, _align) assert(__alignof__(_t) == (_align))
       6  
       7  #define check_align_lv(_t, _align) assert(__alignof__(_t) == (_align) \
       8  					  && (((unsigned long)&(_t)) & ((_align) - 1) ) == 0)
       9  
      10  #define check_basic_struct_size_and_align(_type, _size, _align) { \
      11    struct _str { _type dummy; } _t; \
      12    check_size(_t, _size); \
      13    check_align_lv(_t, _align); \
      14  }
      15  
      16  #define check_array_size_and_align(_type, _size, _align) { \
      17    _type _a[1]; _type _b[2]; _type _c[16]; \
      18    struct _str { _type _a[1]; } _s; \
      19    check_align_lv(_a[0], _align); \
      20    check_size(_a, _size); \
      21    check_size(_b, (_size*2)); \
      22    check_size(_c, (_size*16)); \
      23    check_size(_s, _size); \
      24    check_align_lv(_s._a[0], _align); \
      25  }
      26  
      27  #define check_basic_union_size_and_align(_type, _size, _align) { \
      28    union _union { _type dummy; } _u; \
      29    check_size(_u, _size); \
      30    check_align_lv(_u, _align); \
      31  }
      32  
      33  #define run_signed_tests2(_function, _arg1, _arg2) \
      34    _function(_arg1, _arg2); \
      35    _function(signed _arg1, _arg2); \
      36    _function(unsigned _arg1, _arg2);
      37  
      38  #define run_signed_tests3(_function, _arg1, _arg2, _arg3) \
      39    _function(_arg1, _arg2, _arg3); \
      40    _function(signed _arg1, _arg2, _arg3); \
      41    _function(unsigned _arg1, _arg2, _arg3);
      42  
      43  /* Check size of a struct and a union of three types.  */
      44  
      45  #define check_struct_and_union3(type1, type2, type3, struct_size, align_size) \
      46  { \
      47    struct _str { type1 t1; type2 t2; type3 t3; } _t; \
      48    union _uni { type1 t1; type2 t2; type3 t3; } _u; \
      49    check_size(_t, struct_size); \
      50    check_size(_u, align_size); \
      51  }
      52  
      53  #endif // MACROS_H