[ranges] Add page breaks.

Author: tkoeppe

source/ranges.tex

@@ -1276,6 +1276,8 @@
     range<T> && @\libconcept{same_as}@<iterator_t<T>, sentinel_t<T>>;
 \end{itemdecl}
 
+\newpage
+
 \pnum
 The \libconcept{viewable_range} concept specifies the requirements of a
 \libconcept{range} type that can be converted to a \libconcept{view} safely.
@@ -2780,6 +2782,7 @@
       if (@\exposid{stream_}@) {
         *@\exposid{stream_}@ >> @\exposid{object_}@;
       }
+
       return @\exposid{iterator}@{*this};
     }
 
@@ -2884,6 +2887,8 @@
 \expects
 \tcode{\exposid{parent_}->\exposid{stream_} != nullptr} is \tcode{true}.
 
+\newpage
+
 \pnum
 \effects
 Equivalent to:
@@ -3439,6 +3444,8 @@
 \end{codeblock}
 \end{itemdescr}
 
+\newpage
+
 \indexlibrarymember{operator\dcr}{filter_view::iterator}%
 \begin{itemdecl}
 constexpr @\exposid{iterator}@& operator--() requires @\libconcept{bidirectional_range}@<V>;
@@ -3579,6 +3586,8 @@
 \tcode{views::transform(E, F)} is expression-equivalent to
 \tcode{transform_view\{E, F\}}.
 
+\newpage
+
 \pnum
 \begin{example}
 \begin{codeblock}
@@ -3850,6 +3859,8 @@
 \item Otherwise, \tcode{iterator_concept} denotes \tcode{input_iterator_tag}.
 \end{itemize}
 
+\newpage
+
 \pnum
 \tcode{iterator::iterator_category} is defined as follows:
 Let \tcode{C} denote the type
@@ -4009,6 +4020,8 @@
 \end{codeblock}
 \end{itemdescr}
 
+\newpage
+
 \indexlibrarymember{operator-=}{transform_view::iterator}%
 \begin{itemdecl}
 constexpr @\exposid{iterator}@& operator-=(difference_type n)
@@ -4684,6 +4697,8 @@
 Otherwise, \tcode{ranges::drop_view\{E, F\}}.
 \end{itemize}
 
+\newpage
+
 \pnum
 \begin{example}
 \begin{codeblock}
@@ -4766,6 +4781,8 @@
 \exposid{count_} with \tcode{count}.
 \end{itemdescr}
 
+\newpage
+
 \indexlibrarymember{begin}{drop_view}%
 \begin{itemdecl}
 constexpr auto begin()
@@ -5239,6 +5256,8 @@
 Equivalent to: \tcode{++*this}.
 \end{itemdescr}
 
+\newpage
+
 \indexlibrarymember{operator++}{join_view::iterator}%
 \begin{itemdecl}
 constexpr @\exposid{iterator}@ operator++(int)
@@ -6262,6 +6281,8 @@
 \tcode{keys_view} is an alias for \tcode{elements_view<views::all_t<R>, 0>}, and
 is useful for extracting keys from associative containers.
 
+\newpage
+
 \begin{example}
 \begin{codeblock}
 auto names = keys_view{historical_figures};
@@ -6548,6 +6569,8 @@
 \end{codeblock}
 \end{itemdescr}
 
+\newpage
+
 \indexlibrarymember{operator+=}{elements_view::iterator}%
 \begin{itemdecl}
 constexpr @\exposid{iterator}@& operator+=(difference_type n);
@@ -6700,6 +6723,8 @@
 Equivalent to: \tcode{return x.\exposid{current_} - y.\exposid{current_};}
 \end{itemdescr}
 
+\newpage
+
 \rSec3[range.elements.sentinel]{Class template \tcode{elements_view::\exposid{sentinel}}}
 
 \indexlibraryglobal{elements_view::sentinel}%