Update source/iterators.tex

Co-authored-by: Jan Schultke <[email protected]>

Author: AlisdairM

source/iterators.tex

@@ -7416,7 +7416,7 @@
 
 \indexlibrary{\idxcode{crbegin(const C\& c)}}%
 \begin{itemdecl}
-template<class C> constexpr auto crbegin(const C& c) noexcept(noexcept(c.crbegin()))
+template<class C> constexpr auto crbegin(const C& c) noexcept(noexcept(std::rbegin(c)))
   -> decltype(std::rbegin(c));
 \end{itemdecl}
 \begin{itemdescr}