[util.smartptr.shared.atomic] Use codeblocks for long return elements.

Addresses #693 for this part.

Author: tkoeppe

source/utilities.tex

@@ -7025,8 +7025,7 @@
   template<class T>
     shared_ptr<T> atomic_exchange(shared_ptr<T>* p, shared_ptr<T> r);
   template<class T>
-    shared_ptr<T> atomic_exchange_explicit(shared_ptr<T>* p, shared_ptr<T> r,
-                                           memory_order mo);
+    shared_ptr<T> atomic_exchange_explicit(shared_ptr<T>* p, shared_ptr<T> r, memory_order mo);
 
   template<class T>
     bool atomic_compare_exchange_weak(
@@ -7049,8 +7048,8 @@
   template <class T> struct hash<shared_ptr<T>>;
 
   // \ref{allocator.uses.trait}, uses_allocator
-  template <class T, class Alloc> constexpr bool uses_allocator_v
-    = uses_allocator<T, Alloc>::value;
+  template <class T, class Alloc>
+    constexpr bool uses_allocator_v = uses_allocator<T, Alloc>::value;
 }
 \end{codeblock}
 
@@ -10706,8 +10705,7 @@
 \indexlibrarymember{atomic_exchange_explicit}{shared_ptr}%
 \begin{itemdecl}
 template<class T>
-  shared_ptr<T> atomic_exchange_explicit(shared_ptr<T>* p, shared_ptr<T> r,
-                                         memory_order mo);
+  shared_ptr<T> atomic_exchange_explicit(shared_ptr<T>* p, shared_ptr<T> r, memory_order mo);
 \end{itemdecl}
 
 \begin{itemdescr}
@@ -10727,17 +10725,18 @@
 \indexlibrarymember{atomic_compare_exchange_weak}{shared_ptr}%
 \begin{itemdecl}
 template<class T>
-  bool atomic_compare_exchange_weak(
-    shared_ptr<T>* p, shared_ptr<T>* v, shared_ptr<T> w);
+  bool atomic_compare_exchange_weak(shared_ptr<T>* p, shared_ptr<T>* v, shared_ptr<T> w);
 \end{itemdecl}
 
 \begin{itemdescr}
 \pnum
 \requires \tcode{p} shall not be null and \tcode{v} shall not be null.
 
 \pnum
-\returns \tcode{atomic_compare_exchange_weak_explicit(p, v, w,
-memory_order_seq_cst, memory_order_seq_cst)}.
+\returns
+\begin{codeblock}
+atomic_compare_exchange_weak_explicit(p, v, w, memory_order_seq_cst, memory_order_seq_cst)
+\end{codeblock}
 
 \pnum
 \throws Nothing.
@@ -10746,14 +10745,15 @@
 \indexlibrarymember{atomic_compare_exchange_strong}{shared_ptr}%
 \begin{itemdecl}
 template<class T>
-  bool atomic_compare_exchange_strong(
-    shared_ptr<T>* p, shared_ptr<T>* v, shared_ptr<T> w);
+  bool atomic_compare_exchange_strong(shared_ptr<T>* p, shared_ptr<T>* v, shared_ptr<T> w);
 \end{itemdecl}
 
 \begin{itemdescr}
 \pnum
-\returns \tcode{atomic_compare_exchange_strong_explicit(p, v, w,}
-\tcode{memory_order_seq_cst, memory_order_seq_cst)}.
+\returns
+\begin{codeblock}
+atomic_compare_exchange_strong_explicit(p, v, w, memory_order_seq_cst, memory_order_seq_cst)
+\end{codeblock}
 \end{itemdescr}
 
 \indexlibrarymember{atomic_compare_exchange_weak_explicit}{shared_ptr}%