rb_str_plus       189 ext/iconv/iconv.c 	toenc = rb_str_plus(to, toopt);
rb_str_plus       193 ext/iconv/iconv.c 	fromenc = rb_str_plus(from, fromopt);
rb_str_plus       595 include/ruby/intern.h VALUE rb_str_plus(VALUE, VALUE);
rb_str_plus      7079 string.c           rb_define_method(rb_cString, "+", rb_str_plus, 1);