clang complains about generated programs: width of bit-field 'member_1_0' (29 bits) exceeds the width of its type

[yurivict]

./init.h:224:17: warning: width of bit-field 'member_1_0' (29 bits) exceeds the width of its type; value will be truncated to 8 bits [-Wbitfield-width]
    signed char member_1_0 : 29;
                ^
./init.h:228:11: warning: width of bit-field 'member_1_2' (20 bits) exceeds the width of its type; value will be truncated to 16 bits [-Wbitfield-width]
    short member_1_2 : 20;
          ^

[Vsevolod-Livinskij]

This is intended behavior. It is not an issue, because C++ standard states that “The value of the integral constant expression may be larger than the number of bits in the object
representation (6.7) of the bit-field’s type; in such cases the extra bits are padding bits (6.7).” (12.2.4).

If you want, you can change the maximal size of bit-field in this line. But be aware that GCC and LLVM treat operations differently on bit-fields that are wider than int (see pr).