diff --git a/doc/userdoc.org b/doc/userdoc.org index 207e283d659d949d6310943b4af6f71a838f1854..d2abb3de63b7e94872f0fd35ad6d73515701ce5d 100644 --- a/doc/userdoc.org +++ b/doc/userdoc.org @@ -1407,6 +1407,20 @@ they follow a few rules. \right. \end{equation*} #+end_src +\\ + This is also the case for ~string~ values: only allowed operators are + ~==~ and ~!=~. + #+begin_src latex :results drawer :exports results + \begin{equation*} + \left| + \begin{array}{rl} + \mathtt{==}:& \mathtt{string} \times \mathtt{string} \to \mathbb{B}\\ + \mathtt{!=}:& \mathtt{string} \times \mathtt{string} \to \mathbb{B} + \end{array} + \right. + \end{equation*} + #+end_src + - Shift operators ~<<~ and ~>>~ are not used to define binary operators between two basic types - Arithmetic operators are defined