gistfile1.txt

dump.c:775:18: warning: implicit declaration of function 'rb_struct_const_ptr' is invalid in C99 [-Wimplicit-function-declaration]
            VALUE       beg = RSTRUCT_PTR(obj)[0];
                              ^
/Users/usr0600238/.anyenv/envs/rbenv/versions/2.4.0-dev/include/ruby-2.4.0/ruby/ruby.h:1184:33: note: expanded from macro 'RSTRUCT_PTR'
#define RSTRUCT_PTR(st)         rb_struct_const_ptr(st)
                                ^
dump.c:775:34: error: subscripted value is not an array, pointer, or vector
            VALUE       beg = RSTRUCT_PTR(obj)[0];
                              ~~~~~~~~~~~~~~~~^~
dump.c:776:34: error: subscripted value is not an array, pointer, or vector
            VALUE       end = RSTRUCT_PTR(obj)[1];
                              ~~~~~~~~~~~~~~~~^~
dump.c:777:35: error: subscripted value is not an array, pointer, or vector
            VALUE       excl = RSTRUCT_PTR(obj)[2];
                               ~~~~~~~~~~~~~~~~^~
dump.c:797:21: warning: incompatible integer to pointer conversion assigning to 'VALUE *' (aka 'unsigned long *') from 'int' [-Wint-conversion]
            for (i = 0, vp = RSTRUCT_PTR(obj); i < cnt; i++, vp++) {