rb_str_buf_new_cstr  576 include/ruby/intern.h VALUE rb_str_buf_new_cstr(const char*);
rb_str_buf_new_cstr  662 include/ruby/intern.h 	rb_str_buf_new_cstr(str);		\
rb_str_buf_new_cstr  682 include/ruby/intern.h #define rb_str_buf_new2 rb_str_buf_new_cstr