rb_str_buf_new_cstr 2293 error.c            VALUE mesg = rb_str_buf_new_cstr(err);
rb_str_buf_new_cstr  719 include/ruby/intern.h VALUE rb_str_buf_new_cstr(const char*);
rb_str_buf_new_cstr  843 include/ruby/intern.h 	rb_str_buf_new_cstr(str)		\
rb_str_buf_new_cstr  861 include/ruby/intern.h #define rb_str_buf_new2 rb_str_buf_new_cstr